Mercer County, Missouri

Mercer County
Map of Missouri highlighting Mercer County
Location within the U.S. state of Missouri
Map of the United States highlighting Missouri
Missouri's location within the U.S.
Coordinates: 40°25′N 93°34′W / 40.42°N 93.57°W / 40.42; -93.57
Country United States
State Missouri
FoundedFebruary 14, 1845
Named forJohn Francis Mercer
SeatPrinceton
Largest cityPrinceton
Area
 • Total455 sq mi (1,180 km2)
 • Land454 sq mi (1,180 km2)
 • Water1.3 sq mi (3 km2)  0.3%
Population
 (2020)
 • Total3,538
 • Density7.8/sq mi (3.0/km2)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
Congressional district6th

Mercer County is a county located in the northwestern portion of the U.S. state of Missouri. As of the 2020 census, the population was 3,538,[1] making it the second-least populous county in Missouri. Its county seat is Princeton.[2] The county was organized February 14, 1845, and named for General John F. Mercer of the Revolutionary War.

  1. ^ "Explore Census Data". data.census.gov. Retrieved December 16, 2021.
  2. ^ "Find a County". National Association of Counties. Retrieved June 7, 2011.