Rohnert Park, California

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City of Rohnert Park
General law city[1]
Rohnert Park sign between Commerce Boulevard and U.S. 101
Rohnert Park sign between Commerce Boulevard and U.S. 101
Official logo of City of Rohnert Park
Motto: "The Friendly City"
Location in Sonoma County and the state of California
Location in Sonoma County and the state of California
City of Rohnert Park is located in the US
City of Rohnert Park
City of Rohnert Park
Location in the United States
Coordinates: 38°20′50″N 122°41′43″W / 38.34722°N 122.69528°W / 38.34722; -122.69528Coordinates: 38°20′50″N 122°41′43″W / 38.34722°N 122.69528°W / 38.34722; -122.69528
Country  United States
State  California
County Sonoma
Incorporated August 28, 1962[2]
 • Type Council–manager[1]
 • Mayor Jake Mackenzie[3]
 • Vice Mayor Pam Stafford[3]
 • City Manager Darrin Jenkins[4]
 • Total 7.008 sq mi (18.149 km2)
 • Land 7.003 sq mi (18.136 km2)
 • Water 0.005 sq mi (0.013 km2)  0.07%
Elevation[6] 105 ft (32 m)
Population (2010)
 • Total 40,971
 • Density 5,800/sq mi (2,300/km2)
Time zone Pacific (UTC−8)
 • Summer (DST) PDT (UTC−7)
ZIP codes[7] 94926–94928
Area code 707
FIPS code 06-62546
GNIS feature IDs 1656263, 2410985

Rohnert Park is a city in Sonoma County, California, United States, located approximately 50 miles (80 km) north of San Francisco. The population at the 2010 United States Census was 40,971. It is an early planned city and is the sister city of Hashimoto in Japan.[8] Sonoma State University, part of the California State University system, is located nearby.


According to the United States Census Bureau, Rohnert Park has a total area of 7.0 square miles (18 km2), 99.93% of it land and 0.07% of it water.


There is a small reservoir called Roberts Lake at the north end of the city and a number of creeks. Important creeks include the Laguna de Santa Rosa (which forms part of the border with the City of Cotati), Copeland Creek, Hinebaugh Creek, Crane Creek and Five Creek.

All creeks within the city limits have been channelized. Spivock Creek, Coleman Creek, Wilfred Channel, and Labath Channel are artificial channels designed to convey runoff.


The Rodgers Creek Fault is an active fault influencing earthquake activity in the Rohnert Park area.[9] The city also experiences earthquakes from the San Andreas Fault.


The city is organized into sections, designated by the letters A-H, "J", "L", "M", "R", and "S." In most cases, the names of streets and parks begin with the letter of the section they are in.[10] Thus:

  • Adele Avenue, Alden Avenue, Alicia Park, Alison Avenue, Allen Avenue, Alma Avenue, Alta Avenue, Anson Avenue, Arlen Drive, Ava Avenue, and Avram Avenue are in "A" Section.
  • Baron Drive, Belita Avenue, Benicia Park, Bobbie Way, Bonnie Avenue, Boris Court, Burton Avenue, Bernice Avenue, Beth Court, Beverly Drive, Bonita Avenue, Brenda Way, and Brett Avenue are in "B" Section.
  • Cala Way, Carlita Circle, Castile Court, Caterpillar Park, Cielo Circle, Circle Drive, Cornell Avenue, Camino Coronado, Corsica Court, and Camino Corto are in "C" Section.
  • Daniel Drive, Darleen Court, Davis Circle, Dawn Drive, Della Court, Dexter Circle, Dinah Court, Dolores Drive, Donna Court, Dorine Avenue, Dorothea Park, and Dubarry Court are in "D" Section.
  • Eagan Court, Eagle Park, Edna Court, Eleanor Avenue, Elizabeth Avenue, Ellen Court, Elsa Avenue, Emily Avenue, Eunice Street, Eve Court, and Evelyn Avenue are in "E" Section.
  • Fauna Avenue, Flores Avenue, Fairway Drive, Firethorn Drive, Fuchsia Avenue, and Filament Street are in "F" Section.
  • Genesis Court, Gary Court, Grandview Way, and Graywhaler Lane are in "G" Section.
  • Hollingsworth Circle, Hermosa Court, Hawthorne Circle, Hawthorne Court, Holly, Heath Circle, Hickory Way, Hacienda Circle, Hedge Court, Heather Court, and Heritage Lane are in "H" Section
  • Jade Court, Jasmine Circle, Joyce Court, and Jubilee Court are in "J" section.
  • Ladybug Park, Lilac Way, Liman Way, Lancaster Drive, Lincoln Avenue, and Landsdown Circle are in "L" Section.
  • Magnolia Park, Maurice Avenue, and Middlebrook Way are in "M" Section.
  • Rosana Way, Ruby Court, Roman Drive, and Roxanne Lane are in "R" Section.
  • San Antonio Drive, San Francisco Way, San Ramon Place, and Santa Cruz Way are in "S" Section.


Riparian communities within the city are limited by channelization of creekbeds. Vegetation alongside the City's streams primarily consists of grass and sedge species. The Laguna de Santa Rosa contains bands of thick native riparian vegetation, including willow (Salix spp.) and alder (Alnus spp.) trees.[11]

Sudden oak death fungus risks are present in the Rohnert Park area. Research is ongoing at the nearby Fairfield Osborn Preserve.[12]


Historical population
Census Pop.
1970 6,133
1980 22,965 274.4%
1990 36,326 58.2%
2000 42,236 16.3%
2010 40,971 −3.0%
Est. 2015 42,407 [13] 3.5%
U.S. Decennial Census[14]


The 2010 United States Census[15] reported that Rohnert Park had a population of 40,971. The population density was 5,846.8 people per square mile (2,257.5/km²). The racial makeup of Rohnert Park was 31,178 (76.1%) White (66.2% non-Hispanic white), 759 (1.9%) African American, 407 (1.0%) Native American, 2,144 (5.2%) Asian (1.3% Filipino, 1.0% Chinese, 0.8% Indian, 0.4% Vietnamese, 0.4% Japanese, 0.4% Korean, 0.2% Laotian, 0.1% Cambodian, 0.1% Thai, 0.1% Nepalese), 179 (0.4%) Pacific Islander (0.1% Samoan, 0.1% Native Hawaiian, 0.1% Fijian, 0.1% Tongan), 3,967 (9.7%) from other races, and 2,337 (5.7%) from two or more races. Hispanic or Latino of any race were 9,068 persons (22.1%). Among the Hispanic population, 17.3% are Mexican, 1.0% are Salvadoran, 0.6% Puerto Rican, and 0.4% Guatemalan.

The Census reported that 99.0% of the population lived in households and 1.0% lived in non-institutionalized group quarters.

There were 15,808 households, out of which 4,842 (30.6%) had children under the age of 18 living in them, 6,546 (41.4%) were opposite-sex married couples living together, 1,883 (11.9%) had a female householder with no husband present, 907 (5.7%) had a male householder with no wife present. There were 1,201 (7.6%) unmarried opposite-sex partnerships, and 144 (0.9%) same-sex married couples or partnerships. 4,177 households (26.4%) were made up of individuals and 1,374 (8.7%) had someone living alone who was 65 years of age or older. The average household size was 2.57. There were 9,336 families (59.1% of all households); the average family size was 3.13.

The population was spread out with 8,571 people (20.9%) under the age of 18, 6,853 people (16.7%) aged 18 to 24, 11,035 people (26.9%) aged 25 to 44, 10,710 people (26.1%) aged 45 to 64, and 3,802 people (9.3%) who were 65 years of age or older. The median age was 33.0 years. For every 100 females there were 95.3 males. For every 100 females age 18 and over, there were 92.7 males.

There were 16,551 housing units at an average density of 2,361.9 per square mile (911.9/km²), of which 54.0% were owner-occupied and 46.0% were occupied by renters. The homeowner vacancy rate was 2.1%; the rental vacancy rate was 4.8%. 55.8% of the population lived in owner-occupied housing units and 43.3% lived in rental housing units.


As of the census[16] of 2000, there were 42,236 people, 15,503 households, and 9,797 families residing in the city. The population density was 6,564.5 people per square mile (2,534.6/km²). There were 15,808 housing units at an average density of 2,457/sq mi (949/km²). The racial makeup of the city was 80.28% White, 1.97% African American, 0.78% Native American, 5.58% Asian, 0.42% Pacific Islander, 5.72% from other races, and 5.25% from two or more races. Hispanic or Latino of any race were 13.57% of the population.

There were 15,503 households out of which 35.1% had children under the age of 18 living with them, 46.7% were married couples living together, 11.9% had a female householder with no husband present, and 36.8% were non-families. 24.0% of all households were made up of individuals and 7.7% had someone living alone who was 65 years of age or older. The average household size was 2.65 and the average family size was 3.20.

In the city, the population was spread out with 25.3% under the age of 18, 14.8% from 18 to 24, 32.0% from 25 to 44, 19.8% from 45 to 64, and 8.1% who were 65 years of age or older. The median age was 32 years. For every 100 females there were 94.1 males. For every 100 females age 18 and over, there were 90.2 males. The median income for a household in the city was $51,942, and the median income for a family was $61,420. Males had a median income of $41,757 versus $31,149 for females. The per capita income for the city was $23,035. About 3.2% of families and 8.0% of the population were below the poverty line, including 4.6% of those under age 18 and 6.3% of those over age 64.

Law and government[edit]

City council[edit]

Rohnert Park is governed by a city council of five members, who serve staggered four-year terms. Municipal elections are held in November of even-numbered years.[17]

County, state, and federal representation[edit]

Rohnert Park is split between Sonoma County's 2nd and 3rd supervisorial districts.[18][19]

In the California State Legislature, Rohnert Park is in the 3rd Senate District, represented by Democrat Bill Dodd,[20] and in the 4th Assembly District, represented by Democrat Cecilia Aguiar-Curry.[21]

In the United States House of Representatives, Rohnert Park is part of California's 5th congressional district, represented by Democrat Mike Thompson.[22]

Department of Public Safety[edit]

Rohnert Park is patrolled by the Rohnert Park Department of Public Safety, established in 1962, that operates as an integrated fire and police department.

Shooting of Kuanchung Kao[edit]

On April 29, 1997 Kuanchung Kao was waving a wooden stick in the street in front of his driveway, prompting 911 calls placed by his neighbors, and two officers, Jack Shields and Mike Lynch, responded to the scene. Shields shot Kao once in the chest. Shields stated that he believed Kao was waving the stick in a martial arts fashion, and that he and Lynch had to respond by using deadly force. The incident was investigated by the Sonoma County Sheriff's Office, the Sonoma County District Attorney's Office, and FBI, who all cleared Shields. Kao's family and attorney John Burris filed a lawsuit against the city of Rohnert Park, and received a settlement of $1 million in 2001.

2015 police controversy[edit]

On July 29, 2015, Rohnert Park Public Safety Officer Dave Rodriguez[23] drew his sidearm during an encounter with city resident Don McComas,[24] while McComas was hitching his boat trailer to his vehicle.[25] McComas recorded the incident and posted it on YouTube.[26][27]

Officer Rodriguez was placed on administrative leave while the city conducted an internal investigation into the incident.[28] On August 6, 2015, the city announced that it would engage an independent investigator.[29] In October 2015, the city announced the investigators’ findings that Rodriguez’ actions were within the law and followed department policy, stating it was “reasonable” for Rodriguez “to un-holster his duty weapon at the point he did during the encounter with the resident.”[30]

McComas was not detained or arrested during or after the incident.[31] A civil rights claim has been filed on behalf of McComas claiming that Rodriguez was trying to intimidate him.[23]


Rohnert Park Expressway, Rohnert Park, California

Originally home of the Coast Miwok native people,[32] the Mexican government granted Rancho Cotate to Captain Juan Castaneda in July 1844 for his military services in the region. The grant encompassed present-day Penngrove, Cotati and Rohnert Park. "Cotate Rancho is a part of the Vallejo Township which is the plain between Sonoma Mountain and Petaluma Creek San Pablo Bay, and an east and west line dividing the tract from Santa Rosa Township."[33][34] In 1849, Dr. Thomas S. Page, of Cotati, bought Rancho Cotate. Over time, the property was broken up and sold off piecemeal to incoming settlers.[33]

The town of Rohnert Park was named after the Rohnert family, which owned the Rohnert Seed Farm. In 1929, a successful businessman, Waldo Emerson Rohnert (1869–1933), a native of Detroit, Michigan, purchased a large ranch in the area and minimized flooding in the fields with a crude drainage system. He died shortly thereafter. His son, Fred Rohnert, a graduate of Stanford Law School, took over the ranch and developed a seed growing business, the Rohnert Seed Farm, which became a major horticultural success for the county.[33]

In 1956, only four adults resided within the district boundaries. In 1957, with the U.S. Route 101 Freeway recently completed at the Cotati bypass, Rohnert Park began to be laid out and built as a planned city. In a summer election in 1962, Rohnert Park was incorporated, comprising 1,325 acres (536 ha), housing an estimated 2,775 persons. It was the first town to incorporate in Sonoma County since 1905. The neighboring town of Cotati, California, voted to incorporate the following year.[33]


The Cotati-Rohnert Park Unified School District serves the city, which is also home to Sonoma State University.

High schools[edit]

Rancho Cotate High School is the main comprehensive high school for both Rohnert Park and Cotati. Technology High School is a small public high school located on the Sonoma State University campus.

Alternative education consists of:

  • Credo High School, A Charter Public High School, in Sonoma County, inspired by Waldorf Education, offers a tuition-free, holistic, college prep curriculum and specialty subjects.
  • Flex Academy (on RCHS campus)
  • Technology High School
  • Phoenix High School (on RCHS campus)
  • Independent study

New development[edit]

Sonoma Mountain Village Rohnert Park is a 200-acre (0.81 km2), solar-powered, zero-waste community currently under development.[35]

The Graton Resort & Casino opened on November 5, 2013.

See also[edit]


  1. ^ a b "Government". City of Rohnert Park, California. Retrieved January 30, 2015. 
  2. ^ "California Cities by Incorporation Date" (Word). California Association of Local Agency Formation Commissions. Retrieved August 25, 2014. 
  3. ^ a b "Jake Mackenzie, Mayor". Retrieved December 14, 2016. 
  4. ^ "City Manager - City of Rohnert Park". Retrieved November 26, 2016. 
  5. ^ "2010 Census U.S. Gazetteer Files – Places – California". United States Census Bureau. 
  6. ^ "Rohnert Park". Geographic Names Information System. United States Geological Survey. Retrieved November 3, 2014. 
  7. ^ "ZIP Code(tm) Lookup". United States Postal Service. Retrieved November 24, 2014. 
  8. ^ "Sister Cities Relations Committee". City of Rohnert Park, California. Retrieved January 5, 2015. 
  9. ^ USGS, Seismicity in the Rohnert Park, California vicinity
  10. ^ "Sonoma County Homes For Sale". Cynthia Larson. Retrieved November 28, 2014. 
  11. ^ Earth Metrics, Environmental Impact Report for the City of Rohnert Park General Plan, C Michael Hogan, Marc Papineau, Ballard George et al., published by the city of Rohnert Park, California and the State of California Environmental Clearinghouse, Sacramento, Ca., Report Number 10351, March 9, 1990
  12. ^ Sonoma State University research study on Sudden Oak Death Fungus at Fairfield Osborn Preserve (2000)
  13. ^ "Annual Estimates of the Resident Population for Incorporated Places: April 1, 2010 to July 1, 2015". Retrieved July 2, 2016. 
  14. ^ "Census of Population and Housing". Retrieved June 4, 2015. 
  15. ^ "2010 Census Interactive Population Search: CA - Rohnert Park city". U.S. Census Bureau. Retrieved July 12, 2014. 
  16. ^ "American FactFinder". United States Census Bureau. Retrieved 2008-01-31. 
  17. ^ "City of Rohnert Park, California : Government". Retrieved August 24, 2010. 
  18. ^ "Board of Supervisors - District 2". County of Sonoma. Retrieved January 8, 2014. 
  19. ^ "Board of Supervisors - District 3". County of Sonoma. Retrieved January 8, 2014. 
  20. ^ "Senators". State of California. Retrieved August 25, 2014. 
  21. ^ "Members Assembly". State of California. Retrieved August 25, 2014. 
  22. ^ "California's 5th Congressional District - Representatives & District Map". Civic Impulse, LLC. Retrieved August 25, 2014. 
  23. ^ a b
  24. ^
  25. ^
  26. ^
  27. ^
  28. ^
  29. ^
  30. ^
  31. ^
  32. ^ Access Genealogy
  33. ^ a b c d DeClercq, 1977.
  34. ^ Harris, 1980.
  35. ^ Peters, Adele (February 19, 2009). "Sonoma Mountain Village: Is Green Suburbia Possible?". worldchanging. Retrieved February 19, 2009. 


External links[edit]