Grant County is a county located in the northern part of the U.S. state of Kentucky. As of the 2020 census, the population was 24,941. Its county seat is Williamstown. The county was formed in 1820 and named for Colonel John Grant, who led a party of settlers in 1779 to establish Grant's Station, in today's Bourbon County, Kentucky. Grant County is included in the Cincinnati-Middletown, OH-KY-IN Metropolitan Statistical Area. Grant County residents voted to allow full alcohol sales in the county by a margin of 56% to 44% in a special election on December 22, 2015. In the 19th century, Grant County had multiple saloons.

Northern Kentucky is an urban area in the U.S. Commonwealth of Kentucky compromising the southern part of the Cincinnati metropolitan area. The three main counties of the area are Boone, Kenton, and Campbell, all along the Ohio River across from Cincinnati, Ohio. Other counties frequently included in Northern Kentucky include Bracken, Grant, Gallatin and Pendleton. Of Greater Cincinnati's over two million residents, over 450,000 of them live in Northern Kentucky as of 2020, primarily in the northernmost counties. The largest cities in the region are Covington, Florence, and Independence.