Nodaway County, Missouri

Nodaway County
Nodaway County Courthouse
Location within the U.S. state of Missouri
Missouri's location within the U.S.
Coordinates: 40°22′N 94°53′W / 40.36°N 94.88°W / 40.36; -94.88
Country United States
State Missouri
FoundedFebruary 14, 1845
Named afterNodaway River
SeatMaryville
Largest cityMaryville
Area
  Total
878 sq mi (2,270 km2)
  Land877 sq mi (2,270 km2)
  Water0.9 sq mi (2 km2)  0.1%
Population
 (2020)
  Total
21,241
  Density24/sq mi (9.3/km2)
Time zoneUTC−6 (Central)
  Summer (DST)UTC−5 (CDT)
Congressional district6th
Websitewww.nodawaycountymo.com

Nodaway County is a county located in the northwest part of Missouri. As of the 2020 census, the population was 21,241. Its county seat is Maryville. The county was organized February 14, 1845, and is named for the Nodaway River. It is the largest county by area added to Missouri in the 1836 Platte Purchase and the fifth-largest county by area in Missouri.

Nodaway County comprises the Maryville, MO Micropolitan Statistical Area.