The Mississippi River is the second-longest river and chief river of the second-largest drainage system on the North American continent, second only to the Hudson Bay drainage system. Its source is Lake Itasca in northern Minnesota and it flows south for 2,320 miles to the Mississippi River Delta in the Gulf of Mexico. With its many tributaries, the Mississippi's watershed drains all or parts of 32 U. S. two Canadian provinces between the Rocky and Appalachian mountains. The main stem is within the United States; the Mississippi ranks as the fifteenth-largest river by discharge in the world. The river either borders or passes through the states of Minnesota, Iowa, Missouri, Tennessee, Arkansas and Louisiana. Native Americans have lived along its tributaries for thousands of years. Most were hunter-gatherers, but some, such as the Mound Builders, formed prolific agricultural societies; the arrival of Europeans in the 16th century changed the native way of life as first explorers settlers, ventured into the basin in increasing numbers.
The river served first as a barrier, forming borders for New Spain, New France, the early United States, as a vital transportation artery and communications link. In the 19th century, during the height of the ideology of manifest destiny, the Mississippi and several western tributaries, most notably the Missouri, formed pathways for the western expansion of the United States. Formed from thick layers of the river's silt deposits, the Mississippi embayment is one of the most fertile regions of the United States. During the American Civil War, the Mississippi's capture by Union forces marked a turning point towards victory, due to the river's strategic importance to the Confederate war effort; because of substantial growth of cities and the larger ships and barges that replaced steamboats, the first decades of the 20th century saw the construction of massive engineering works such as levees and dams built in combination. A major focus of this work has been to prevent the lower Mississippi from shifting into the channel of the Atchafalaya River and bypassing New Orleans.
Since the 20th century, the Mississippi River has experienced major pollution and environmental problems – most notably elevated nutrient and chemical levels from agricultural runoff, the primary contributor to the Gulf of Mexico dead zone. The word Mississippi itself comes from Misi zipi, the French rendering of the Anishinaabe name for the river, Misi-ziibi. In the 18th century, the river was the primary western boundary of the young United States, since the country's expansion westward, the Mississippi River has been considered a convenient if approximate dividing line between the Eastern and Midwestern United States, the Western United States; this is exemplified by the Gateway Arch in St. Louis and the phrase "Trans-Mississippi" as used in the name of the Trans-Mississippi Exposition, it is common to qualify a regionally superlative landmark in relation to it, such as "the highest peak east of the Mississippi" or "the oldest city west of the Mississippi". The FCC uses it as the dividing line for broadcast call-signs, which begin with W to the east and K to the west, mixing together in media markets along the river.
The Mississippi River can be divided into three sections: the Upper Mississippi, the river from its headwaters to the confluence with the Missouri River. The Upper Mississippi runs from its headwaters to its confluence with the Missouri River at St. Louis, Missouri, it is divided into two sections: The headwaters, 493 miles from the source to Saint Anthony Falls in Minneapolis, Minnesota. The source of the Upper Mississippi branch is traditionally accepted as Lake Itasca, 1,475 feet above sea level in Itasca State Park in Clearwater County, Minnesota; the name "Itasca" was chosen to designate the "true head" of the Mississippi River as a combination of the last four letters of the Latin word for truth and the first two letters of the Latin word for head. However, the lake is in turn fed by a number of smaller streams. From its origin at Lake Itasca to St. Louis, the waterway's flow is moderated by 43 dams. Fourteen of these dams are located above Minneapolis in the headwaters region and serve multiple purposes, including power generation and recreation.
The remaining 29 dams, beginning in downtown Minneapolis, all contain locks and were constructed to improve commercial navigation of the upper river. Taken as a whole, these 43 dams shape the geography and influence the ecology of the upper river. Beginning just below Saint Paul and continuing throughout the upper and lower river, the Mississippi is further controlled by thousands of wing dikes that moderate the river's flow in order to maintain an open navigation channel and prevent the river from eroding its banks; the head of navigation on the Mississippi is the Coon Rapids Dam in Minnesota. Before it was built in 1913, steamboats could go upstream as far as Saint Cloud, depending on river conditions; the uppermost lock and dam on the Upper Mississippi River is the Upper St. Anthony Falls Lock an
Woodford County, Illinois
Woodford County is a county located in the state of Illinois. The 2010 United States Census listed its population at 38,664, its county seat is Eureka. Woodford County is part of IL, Metropolitan Statistical Area, its name comes from General William Woodford, an officer of the American Revolutionary War who served at the brutal military encampment at Valley Forge, Pennsylvania. Woodford County is part of what was the homelands of several Native American peoples, including the Potawatomi, the Meskwaki, the Sauk peoples, it was located just south of the land of the Illiniwek. The western portion of the county in particular shows extensive archeological evidence of supporting extensive First Nations populations. At the time of the American Revolutionary War, three competing American colonies — Massachusetts and Connecticut — claimed part of what is today the state of Illinois; the matter was solved in 1778 when Virginia amalgamated lands in the region into a massive county called Illinois, borrowing the name of a native people.
Indiana Territory was formed in 1800 with William Henry Harrison as Governor. It was not until 1809 that Illinois Territory was formally established as an official territory of the United States of America. Statehood followed in December 1818; the first organized Anglo settlements in the future Woodford County region appeared in the 1820s. First settlement in the county came at Spring Bay, with pioneers managing to select the same ground occupied by an ancient Indian burial site which ran north-and-south through the entire settlement; the location was chosen due to its proximity to the Illinois River. In the 1870s, an early historian of Woodford County wrote: There were a few Indians in the county at the time of settlement by the whites, but the two races did not come into conflict to any extent; the advancing wave of civilization seemed to follow up the retreating wave of barbarism. The first settlers encountered a few Indians...and in 1832 were involved to some extent in the Black Hawk War, but the active operations were further north than Woodford County.
The current boundaries of the county were not those drawn. In 1827 new lines were drawn and Tazewell County was established, including all of today's Woodford County. Settlers began arriving from neighboring territories during the early 1830s; this led to the formal creation of Woodford County along its current boundaries in February 1841. The County was named for Woodford County, in turn named after General William Woodford, who served with General George Washington at Valley Forge, Pennsylvania during the brutal winter of 1777-78; the first post office in today's Woodford County was established in 1836 at Partridge township, named for local tribal leader Black Partridge. In 1836, the area's first school was founded, by Miss Betsy Page; the first public school followed shortly thereafter. The first Sunday school was established in 1837 in the home of Parker Morse in Cazenovia; the first settlers of Woodford County occupied crude log cabins. Windows were covered with oiled papers. Construction of the cabins was primitive, with the floor plan involving a single room heated with a fireplace.
Meat was roasted on a spit. A common staple of pioneer life was waffles, baked from batter in a folding iron mold three or four feet long. Modern canning processes were unknown and the wintertime larder consisted of bread and meat. Vegetables were consumed seasonally, with pumpkin, red peppers and venison dried for use. Clothing was made at home of linen made from homegrown flax. In addition, other heavier compound fabrics known as "linsey," made of linen or cotton with woolen filling, "jeans," made of an heavier material and dyed brown with walnut bark, were used. Prior to 1831 all preparation of wool had to be done by hand at home, with the raw fiber "carded" between pairs of thin, metal spiked boards about 4 inches wide and a foot long; the resulting rolls of wool were spun into thread upon a spinning wheel and thereby prepared for the loom. A sexual division of labor was practiced, with women engaged in home manufactures and food preparation while men were occupied with agriculture and construction.
Since a great percentage of the land of Woodford County was tillable, farming was the principal occupation of the early settlers. Plowing was by means of wooden plows with iron shares. Hay using wild rather than cultivated grass, was cut with a scythe and taken up with rakes and pitchforks. With the advent of timber milling in the area, frame houses became possible. Settlers cooperated in construction, helping one another raise barns; the latter could be 30 feet in length and width with walls 16 feet high. "It was heavy and dangerous work, the raising of a large barn required the united energies of a whole community," one settler recalled. Other buildings constructed included stables, corn-cribs and ash-hoppers. Plank fences began to appear in the 1850s. Governance by the early settlers was not by voice vote. By 1850, Woodford County was well settled. Illinois settlers were
Tazewell County, Illinois
Tazewell County is a county in the U. S. state of Illinois. According to the 2010 census, it had a population of 135,394, its county seat and largest city is Pekin. It is pronounced with a short "a", to rhyme with "razz" rather than "raze". Tazewell County is part of IL Metropolitan Statistical Area; the majority of the population lives along the county's western border. Tazewell County was formed out of Peoria County in 1827; the consensus appears to be that it was named in honor of Littleton Tazewell, who served in the U. S. Senate, who became Governor of Virginia in 1834, it is, possible that it was named after Littleton's father, prominent Virginia politician Henry Tazewell, after whom Tazewell County, was named. According to the U. S. Census Bureau, the county has a total area of 658 square miles, of which 649 square miles is land and 9.0 square miles is water. In recent years, average temperatures in the county seat of Pekin have ranged from a low of 14 °F in January to a high of 86 °F in July, although a record low of −27 °F was recorded in January 1884 and a record high of 113 °F was recorded in July 1936.
Average monthly precipitation ranged from 1.50 inches in January to 4.17 inches in May. Woodford County McLean County Logan County Mason County Fulton County Peoria County The following public-use airports are located in Tazewell County: Pekin Municipal Airport - serves Pekin Manito Mitchell Airport - serves Manito, a village in Mason County As of the 2010 United States Census, there were 135,394 people, 54,146 households, 37,163 families residing in the county; the population density was 208.6 inhabitants per square mile. There were 57,516 housing units at an average density of 88.6 per square mile. The racial makeup of the county was 96.2% white, 1.0% black or African American, 0.7% Asian, 0.3% American Indian, 0.5% from other races, 1.3% from two or more races. Those of Hispanic or Latino origin made up 1.9% of the population. In terms of ancestry, 35.6% were German, 15.6% were American, 14.4% were Irish, 12.0% were English. Of the 54,146 households, 31.4% had children under the age of 18 living with them, 54.2% were married couples living together, 10.2% had a female householder with no husband present, 31.4% were non-families, 26.3% of all households were made up of individuals.
The average household size was 2.45 and the average family size was 2.94. The median age was 39.8 years. The median income for a household in the county was $54,232 and the median income for a family was $66,764. Males had a median income of $50,372 versus $34,747 for females; the per capita income for the county was $27,036. About 6.3% of families and 7.9% of the population were below the poverty line, including 11.2% of those under age 18 and 4.5% of those age 65 or over. Delavan East Peoria Morton Marquette Heights Pekin Washington Heritage Lake Allentown Dillon Groveland Normandale Parkland Schaeferville Winkel Tazewell County is divided into these townships: Tazewell County has been solidly Republican on the national level, voting for the Republican candidate since 1996. National Register of Historic Places listings in Tazewell County, Illinois
Interstate 55 in Illinois
Interstate 55 is a major north–south Interstate Highway in the U. S. state of Illinois that connects the St. Louis and Chicago metropolitan areas, it enters the state from Missouri on the Poplar Street Bridge near East St. Louis and runs to U. S. Route 41 near downtown Chicago; the Road runs through the cities of Springfield and Joliet. The section in DuPage County is named Joliet Freeway or Will Rogers Freeway and in Cook County is named the Stevenson Expressway. I-55 within Illinois carries heavy traffic, with an average of more than 20,000 vehicles per day for most of its length. Significant portions of I-55 contain six lanes and are used by commuters. I-55 in Illinois begins in East St. Louis on the Poplar Street Bridge over the Mississippi River at the Missouri–Illinois state line and runs southwest to northeast through the state, ending in Chicago at US 41. Along the way, it goes through four metropolitan areas in the state: the Illinois portion of the St. Louis metropolitan area, the Springfield metropolitan area, the Bloomington-Normal metropolitan area, the Chicago metropolitan area.
I-55 enters the Chicago metro area as the Stevenson Expressway and provides easy access to downtown Chicago via both the I-90/I-94 interchange and US 41 at the northern terminus of I-55, near Cermak Road and the lakefront. I-55 in Illinois is the fourth road to connect St. Chicago; the first was the Pontiac Trail in 1915. This was improved and paved as the new Illinois Route 4 by 1924. In 1926, IL 4 was designated as the route of the new U. S 66, a new section of US 66 was built to bypass slower sections of IL 4 south of Springfield by 1930. Through the 1950s US 66 was continually widened and improved to handle its growing traffic, until its entire length was four lanes wide by 1957; the roots of I-55 could be traced back to the need of a national highway system. President Dwight D. Eisenhower saw the need of a national network of highways that would help with the mobilization of the army, he had been impressed with the autobahn he saw in Germany during World War II. In 1956 he signed the Federal Aid Highway Act into existence.
Although the act provided for a highway replacing Route 66, it was spared destruction for a while because of it being more modern than other routes at the time. Illinois would build its first new Interstate highways on other routes such as I-80, I-57, I-70, before turning its attention once again to the St. Louis-to-Chicago route. However, during the 1970s, Route 66 was replaced by I-55 as the fourth St. Louis-to-Chicago highway, serving most of the same communities along the way as the original Pontiac Trail, it was built in sections across Illinois on the original Route 66 roadbed. A common construction tactic where Route 66 was four lanes wide, was to build new southbound lanes for I-55 west of the original road rebuild the original southbound lanes of US 66 to be the new northbound lanes for I-55, leaving the original northbound lanes of old US 66 as a two-way frontage road. One can find many signs posted for Historic US 66 where it deviates from I-55; the earliest stretch of I-55 was a portion of US 66, built as a freeway between Gardner and I-294 in Indian Head Park, and, added to the Interstate system by erecting new signs in 1960.
Portions of the highway were built in the 1960s between East St. Louis and Hamel, as bypasses of Springfield and Bloomington-Normal; the rest of the road was completed in the 1970s. The Stevenson Expressway opened on October 1964 as the Southwest Expressway, it was renamed after Adlai Stevenson, the former governor of Illinois, on September 1, 1965, a month and a half after his death. The Stevenson's original termini were US 66 in DuPage County to the west, the Dan Ryan Expressway to the east. In 1999–2000, the expressway was rebuilt from Central Avenue north to Lake Shore Drive, including the ramps to the Dan Ryan; the Illinois Department of Transportation was criticized at the time for not adding a fourth lane in each direction to the highway. In 2017, the Illinois General Assembly voted to rename 70 miles of I-55 from the Tri-State Tollway to Pontiac in honor of Barack Obama; because of the heavy traffic on I-55, IDOT spends millions of dollars per year maintaining the roadway, adding lanes, replacing bridges to increase the capacity of the highway.
In northeastern Illinois near Joliet, a widening project that expanded I-55 from two to three lanes in each direction between I-80 and Weber Road was completed on October 29, 2008. In the 2000s decade, the Damen Avenue and Pulaski Road interchanges were rebuilt as a single-point urban interchange configuration; the Arsenal Road interchange was under complete rebuilding and reconfiguration as of 2012, the deteriorated overpass at IL 129 was removed in 2012 in anticipation of future construction of a full interchange, temporarily leaving the IL 129 interchange with only a northbound exit and northbound entrance. At St. Louis, the Stan Musial Veterans Memorial Bridge carrying I-70 across the Mississippi River, costing $667 million, was completed in 2014 to relieve congestion on I-55's Poplar Street Bridge. Governor Bruce Rauner, in early 2016, made a proposal to explore expanding the Stevenson Expressway portion of I-55 by adding an additional lane
Galesburg is a city in Knox County, United States. The city is 45 miles northwest of Peoria; as of the 2010 census, the city population was 32,195. It is the county seat of Knox County and the principal city of the Galesburg Micropolitan Statistical Area, which includes all of Knox and Warren counties. Galesburg is home to Knox College, a private four-year liberal arts college, Carl Sandburg College, a two-year community college. A 496-acre section of the city is listed on the National Register of Historic Places as the Galesburg Historic District. Galesburg was founded by George Washington Gale, a Presbyterian minister from New York state who dreamed of establishing a manual labor college. A committee from New York purchased 17 acres in Knox County in 1835, the first 25 settlers arrived in 1836, they built temporary cabins in Log City near current Lake Storey, just north of Galesburg, having decided that no log cabins were to be built inside the town limits. Galesburg was home to the first anti-slavery society in Illinois, founded in 1837, was a stop on the Underground Railroad.
The city was the site of the fifth Lincoln–Douglas debate, on a temporary speaker's platform attached to Knox College's "Old Main" building on October 7, 1858. Knox College continues to use Old Main to this day. An Underground Railroad Museum and Lincoln-Douglas Debate Museum were built in Knox College's Alumni Hall after it had finished renovations. Galesburg was the home of Mary Ann "Mother" Bickerdyke, who provided hospital care for Union soldiers during the Civil War. After the war, Galesburg was the birthplace of poet and historian Carl Sandburg and artist Dorothea Tanning, former Major League Baseball star Jim Sundberg. Sandburg's boyhood home is now operated by the Illinois Historic Preservation Agency as the Carl Sandburg State Historic Site; the site contains the cottage he was born in, a modern museum, the rock under which he and his wife Lilian are buried, a performance venue. Throughout much of its history, Galesburg has been inextricably tied to the railroad industry. Local businessmen were major backers of the first railroad to connect Illinois' two biggest cities—Chicago and Quincy—as well as a third leg terminating across the Mississippi River from Burlington, Iowa connecting to it via bridge and thence onward to the Western frontier.
The Chicago and Quincy Railroad sited major rail sorting yards here, including the first to use hump sorting. The CB&Q built a major depot on South Seminary Street, controversially torn down and replaced by a much smaller station in 1983; the yard is still used by the BNSF Railway. In the late 19th century, when the Atchison and Santa Fe Railway connected its service through to Chicago, it laid track through Galesburg and built its own railroad depot, it was not until 1996 that Amtrak closed the old Santa Fe depot and consolidated all passenger operations at the site of the former Burlington Northern depot. A series of mergers united both lines under the ownership of BNSF Railway, carrying an average of seven trains per hour between them; as of the closing of the Maytag plant in fall of 2004, BNSF is once again the largest private employer in Galesburg. In addition, Galesburg was home to the pioneering brass era automobile company Western, which produced the Gale, named for the town. Lombard College was located in Galesburg until 1930, is now the site of Lombard Middle School.
The Carr Mansion at 560 North Prairie Street in Galesburg was the site of a presidential cabinet meeting held in 1899 by U. S. President William McKinley and U. S. Secretary of State John Hay. Galesburg is located in western Knox County at 40°57′8″N 90°22′7″W. Interstate 74 runs through the east side of the city, leading southeast 47 miles to Peoria and north 36 miles to Interstate 80 near the Quad Cities area. According to the 2010 census, Galesburg has a total area of 17.928 square miles, of which 17.75 square miles are land and 0.178 square miles are water. Amtrak, the national passenger rail system, provides service from Chicago on four trains daily, it operates the California Zephyr, Carl Sandburg, Illinois Zephyr, Southwest Chief daily from Chicago Union Station to Galesburg station and points west. The Southwest Chief and the state-supported Carl Sandburg and Illinois Zephyr take passengers to Chicago or points west, but the Zephyr only discharges passengers on its eastbound run. Galesburg Transit provides bus service in the city.
There are four routes: Gold Express Loop, Green Central Loop, Red West Loop, Blue East Loop. BNSF operates a large hump yard 1.9 miles south of town. Galesburg is served by Interstate 74, whose route runs north to Moline in the Quad Cities region, to the southeast to Peoria and beyond; the Chicago–Kansas City Expressway known as Illinois Route 110, runs through Galesburg. To the southwest it passes through Macomb, the home of Western Illinois University, towards Quincy, before crossing into Missouri. Galesburg served is served by U. S. Routes 34 and 150. US 34 connects Galesburg with Burlington and Chicago, it is a freeway through its entire run in Galesburg, keeping its freeway status going west until Monmouth. It connects to Galesburg through three interchanges at West Main Street, North Henderson Street, North Seminary Street, along with an additional interchange at Interstate 74. US 150 runs through the heart of Galesburg, it enters the city as Grand Avenue from the southeast, runs through downtown as Main Street, exits the city as North Henderson Street.
Illinois Department of Transportation
The Illinois Department of Transportation is a state agency in charge of state-maintained public roadways of the U. S. state of Illinois. In addition, IDOT provides funding for rail, public transit and airport projects and administers fuel tax and federal funding to local jurisdictions in the state; the Secretary of Transportation reports to the Governor of Illinois. IDOT is headquartered in unincorporated Sangamon County, located near the state capital, Springfield. In addition, the IDOT Division of Highways has offices in nine locations throughout the state; the mission of IDOT is to provide safe, cost-effective transportation for Illinois in ways that enhance quality of life, promote economic prosperity and demonstrate respect for the environment. As of February 2009, the Illinois Department of Transportation was divided into the following offices and divisions: Offices The Office of Business and Workforce Diversity oversees the implementation of directives and strategies for departmental business diversity efforts.
The Office of Chief Counsel provides legal counsel to the Department on policy issues and proposed actions affecting any of its operating divisions or staff offices. The Office is responsible for the prosecution and defense of all litigation involving the department in cooperation with the Illinois Attorney General; the Office of Chief Counsel administers tort liability claims, property damage claims and uncollectable receivables as well as processes lien and bond claims against contractors. The Office coordinates the purchase and service of all insurance policies and administers the department's self-insurance program; the Office of Finance and Administration administers the department's budget. The Office of Communications was created in 2009 by combining the Office of Governmental Affairs and the Office of External Affairs; the Office of Communications develops and implements the department's public affairs policies and programs. This includes developing the department's policy positions, its primary objectives are to ensure adequate information toward increasing public involvement in the transportation planning process.
The Office of Planning and Programming develops programs to improve the state transportation system. This includes working with metropolitan planning organizations in ten of the state's urbanized areas to develop programs relating to urban transportation; the Office ensures the continuation of state rail services where the potential for efficiency and economy are most favorable and minimizing the expenditure of public funds for rail subsidies. The Office works with the Chicago Metropolitan Agency for Planning, which serves as a forum for transportation decision making by local elected officials in northeastern Illinois; the Office develops and implements Federal legislative initiatives as well as the initiation and coordination of policy statement and papers which serve as guides for departmental actions on a broad spectrum of transportation issues. The Office of Quality Compliance and Review independently tests the department’s internal control systems to further ensure to the Secretary and to the public the adequacy of the policies and procedures and to recommend improvements.
Divisions The Division of Aeronautics coordinates and implements programs concerning air safety, airport construction and other aeronautical related issues in Illinois. The Division of Highways develops and operates the state highway system; the central bureaus of the Division developing policies, procedures and guidelines to accomplish the department's highway system improvement objectives. The central bureaus monitor the nine district programs to ensure statewide uniformity of policy interpretation and compliance and to ensure program coordination with federal and local agencies. District Offices District 1 - Schaumburg District 2 - Dixon District 3 - Ottawa District 4 - Peoria District 5 - Paris District 6 - Springfield District 7 - Effingham District 8 - Collinsville District 9 - CarbondaleThe Division of Public and Intermodal Transportation promotes and assures safe and efficient mass transportation systems and services in the State of Illinois by developing and recommending policies and programs.
The Division of Traffic Safety providing Illinois motorists and pedestrians with a safe environment by promoting the reduction of traffic fatalities and accidents. The Division develops and promulgates regulations in areas of accident reporting, hazardous materials transportation, vehicle inspection, safety responsibility, cycle rider training and highway safety F
Rock Island County, Illinois
Rock Island County is a county located in the U. S. state of Illinois, bounded on the west by the Mississippi River. According to the 2010 census, it had a population of 147,546, its county seat is Rock Island. Rock Island County is one of the four counties that make up the Davenport-Moline-Rock Island, IA-IL Metropolitan Statistical Area. Rock Island County was formed in 1831 out of Jo Daviess County, it was named for Rock Island, an island in the Mississippi River now known as Arsenal Island. According to the U. S. Census Bureau, the county has a total area of 451 square miles, of which 428 square miles is land and 24 square miles is water. In recent years, average temperatures in the county seat of Rock Island have ranged from a low of 13 °F in January to a high of 85 °F in July, although a record low of −22 °F was recorded in February 1996 and a record high of 103 °F was recorded in July 2006. Average monthly precipitation ranged from 1.28 inches in January to 4.75 inches in June. Clinton County, Iowa Whiteside County Henry County Mercer County Louisa County, Iowa Muscatine County, Iowa Scott County, Iowa Upper Mississippi River National Wildlife and Fish Refuge As of the 2010 United States Census, there were 147,546 people, 61,303 households, 38,384 families residing in the county.
The population density was 345.0 inhabitants per square mile. There were 65,756 housing units at an average density of 153.8 per square mile. The racial makeup of the county was 81.6% white, 9.0% black or African American, 1.6% Asian, 0.3% American Indian, 4.4% from other races, 3.0% from two or more races. Those of Hispanic or Latino origin made up 11.6% of the population. In terms of ancestry, 25.9% were German, 14.2% were Irish, 8.7% were English, 6.8% were Swedish, 5.2% were American. Of the 61,303 households, 29.0% had children under the age of 18 living with them, 45.3% were married couples living together, 12.7% had a female householder with no husband present, 37.4% were non-families, 31.6% of all households were made up of individuals. The average household size was 2.34 and the average family size was 2.93. The median age was 40.0 years. The median income for a household in the county was $46,226 and the median income for a family was $58,962. Males had a median income of $42,548 versus $31,917 for females.
The per capita income for the county was $25,071. About 8.7% of families and 12.3% of the population were below the poverty line, including 19.0% of those under age 18 and 7.1% of those age 65 or over. At one time Mississippi Valley Airlines had its headquarters in Quad City Airport in the county. John Deere is headquartered in Moline. East Moline Moline Rock Island Silvis Coyne Center Rock Island Arsenal Buffalo Prairie Campbell's Island Castle Junction Edgington Ginger Hill Illinois City Joslin Taylor Ridge Rock Island County is divided into eighteen townships: National Register of Historic Places listings in Rock Island County, Illinois Quad City International Airport Portrait and Biographical Album of Rock Island County, Illinois: Containing Full-Page Portraits and Biographical Sketches of Prominent and Representative Citizens of the County, Together with Portraits and Biographies of All the Governors of Illinois, of the Presidents of the United States. Chicago: Biographical Publishing Co. 1885.
Official county website Rock Island County Historical Society