Onawa, Iowa

Onawa, Iowa
Onawa viewed from Iowa Avenue during the holidays.
Location of Onawa, Iowa
Coordinates: 42°00′43″N 96°06′28″W / 42.01194°N 96.10778°W / 42.01194; -96.10778
CountryUnited States
StateIowa
CountyMonona
Area
  Total
5.27 sq mi (13.64 km2)
  Land5.27 sq mi (13.64 km2)
  Water0.00 sq mi (0.00 km2)
Elevation
1,050 ft (320 m)
Population
 (2020)
  Total
2,906
  Density551.63/sq mi (212.98/km2)
Time zoneUTC-6 (Central (CST))
  Summer (DST)UTC-5 (CDT)
ZIP code
51040
Area code712
FIPS code19-59115
GNIS feature ID468464
Websitewww.onawa.com

Onawa is a city in, and the county seat of, Monona County, Iowa, United States. The population was 2,906 at the time of the 2020 Census. It is the largest town on the Iowa side of the Missouri River between Council Bluffs and Sioux City.