Jackson County, Missouri

Jackson County
Truman Courthouse in Independence, designed by Edward F. Neild at the request of Harry S. Truman
Location within the U.S. state of Missouri
Missouri's location within the U.S.
Coordinates: 39°01′N 94°20′W / 39.01°N 94.34°W / 39.01; -94.34
Country United States
State Missouri
FoundedDecember 15, 1826
Named afterAndrew Jackson
SeatIndependence
Kansas City
Largest cityKansas City
Area
  Total
616 sq mi (1,600 km2)
  Land604 sq mi (1,560 km2)
  Water12 sq mi (30 km2)  1.9%
Population
 (2020)
  Total
717,204
  Estimate 
(2023)
718,560
  Density1,200/sq mi (450/km2)
Time zoneUTC−6 (Central)
  Summer (DST)UTC−5 (CDT)
Congressional districts4th, 5th, 6th
Websitewww.jacksongov.org

Jackson County is located in the western portion of the U.S. state of Missouri, on the border with Kansas. As of the 2020 census, the population was 717,204. making it the second-most populous county in the state (after St. Louis County in the east). The county seats are Independence and Kansas City, making Jackson County one of 33 U.S. counties with more than one county seat. The county was organized December 15, 1826, and named for former Tennessee senator Andrew Jackson, who would become President of the United States three years later in 1829.