Jefferson County Address Data

  • State: Kentucky
  • County: Jefferson County
  • County Seat: Louisville
  • FIPS: 21111
  • Founded in: 1780
  • Population: 770,517
  • Density: 2,024 Persons/Square Mile
  • Area: 380 Square Miles
  • Government Type: City-County Consolidation
  • Authority: Home Rule
  • Legislative Body: Urban County Council
  • Legislative Body Size: 26
  • County Contact: 527 W Jefferson St
    Metro Hall
    Louisville, KY 40202-2814
  • County site: https://louisvilleky.gov/
  • Labor Force: 400,587
  • Unemployment Rate: 4.10%
  • Gross Domestic Product (GDP): $49.8 B

Top Cities in Jefferson County

Major Cities (population)

Neighbor Counties

  • Clark County
  • Floyd County
  • Harrison County
  • Bullitt County
  • Hardin County
  • Oldham County
  • Shelby County
  • Spencer County
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