Harrods Creek, Louisville merged with what most populous county in Kentucky in 2003?
Jefferson County, Kentucky Jefferson County is a county located in the U.S. state of Kentucky. As of the 2010 census, the population was 741,096. It is the most populous county in Kentucky and is more than twice as large as the second most populous, Fayette. The county was formed in 1780 and named for future President Thomas Jefferson, who was Governor of Virginia at the time.
Lexington, Kentucky Lexington, consolidated with Fayette County and often denoted as Lexington-Fayette, is the second-largest city in Kentucky and the 60th-largest city in the United States. Known as the "Horse Capital of the World," it is the heart of the state's Bluegrass region. With a mayor-alderman form of government, it is one of two cities in Kentucky designated by the state as first-class; the other is the state's largest city of Louisville. In the 2016 U.S. Census Estimate, the city's population was 318,449, anchoring a metropolitan area of 506,751 people and a combined statistical area of 723,849 people. Due to constant increases in population, Lexington suffers the worst traffic congestion in Kentucky, because two interstates bypass the city to the north and east, resulting in a lack of freeways (besides partial freeway New Circle Road) going through the most populated areas of the city.