Oldham County, Kentucky

Oldham County
Oldham County courthouse in La Grange
Oldham County courthouse in La Grange
Flag of Oldham County
Official seal of Oldham County
Map of Kentucky highlighting Oldham County
Location within the U.S. state of Kentucky
Map of the United States highlighting Kentucky
Kentucky's location within the U.S.
Coordinates: 38°24′N 85°26′W / 38.4°N 85.44°W / 38.4; -85.44
Country United States
State Kentucky
FoundedDecember 15, 1823
Named forWilliam Oldham (1753–1791), American Revolutionary War colonel
SeatLa Grange
Largest cityLa Grange
Area
 • Total196 sq mi (510 km2)
 • Land187 sq mi (480 km2)
 • Water9.2 sq mi (24 km2)  4.7%
Population
 (2020)
 • Total67,607
 • Estimate 
(2023)
70,183 Increase
 • Density340/sq mi (130/km2)
Time zoneUTC−5 (Eastern)
 • Summer (DST)UTC−4 (EDT)
Congressional district4th
Websiteoldhamcountyky.gov

Oldham County is a county located in the north central part of the U.S. state and commonwealth of Kentucky. As of the 2020 census, the population was 67,607.[1] Its county seat is La Grange.[2] The county is named for Colonel William Oldham.

Oldham County is part of the Louisville/Jefferson County, KY–IN Metropolitan Statistical Area.

Oldham County is the wealthiest county in Kentucky[3] and 47th-wealthiest county in the U.S.[4] (and 37th in the U.S. by median income[5]) and ranks as the most educated county in Kentucky.[6] While the causes for this are complicated, areas east of Louisville have long been popular with wealthy residents, initially as summer residences and eventually as year-round suburban estates and bedroom communities. Oldham County lies northeast of the best known of these areas, Anchorage, just outside Louisville's pre-merger East End.

  1. ^ "State & County QuickFacts". United States Census Bureau. Archived from the original on May 14, 2024. Retrieved June 30, 2022.
  2. ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
  3. ^ "Oldham County KY Data & Peer Group Rankings". kentucky.hometownlocator.com. Archived from the original on February 1, 2018. Retrieved January 31, 2018.
  4. ^ "Wealthiest counties in the U.S." Archived from the original on October 28, 2020. Retrieved October 25, 2020.
  5. ^ "QuickFacts". United States Census Bureau. Archived from the original on February 2, 2022. Retrieved September 7, 2022.
  6. ^ "Most educated county in every state". MSN. Archived from the original on October 28, 2020. Retrieved October 15, 2020.