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.
Demographics of Kentucky As of July 1, 2006, the United States Commonwealth of Kentucky had an estimated population of 4,206,074, which is an increase of 33,466, or 0.8%, from the prior year and an increase of 164,586, or 4.1%, since the year 2000. This includes a natural increase since the last census of 77,156 people (that is 287,222 births minus 210,066 deaths) and an increase due to net migration of 59,604 people into the state. Immigration from outside the United States resulted in a net increase of 27,435 people, and migration within the country produced a net increase of 32,169 people. As of 2004, Kentucky's population included about 95,000 foreign-born (2.3%). The population density of the state is 101.7 people per square mile.