Onawa, Iowa

Onawa: city in Iowa

About

Onawa is a city located in the county of Monona in the U.S. state of Iowa. Its population at the 2010 census was 2,998 and a population density of 223 people per km². After 10 years in 2020 city had an estimated population of 2,766 inhabitants.

Onawa locator map
Location of Onawa on Iowa map.

Quick Facts about Onawa

Population 2,766 (2020)
Country United States of America
State Iowa (United States)
County Monona County
Postal code 51040
Phone Area Codes 712
Area 13.44 km2
Latitude & Longitude 42.0267,-96.0972
Altitude 1,050 feet / 320, 320 meters
Capital city Onawa is capital of Monona County
Time Zone America/Chicago
Local time 04:01:34 (11th April 2026)
Density 206 Pop. per km² as of 2020
Population growth -8.39% (2010-2020)
Weather 67℉ Showers And Thunderstorms 7-days weather
MONONA COUNTY COURTHOUSE  ONAWA  IOWA image
MONONA COUNTY COURTHOUSE ONAWA IOWA image

Geography

Onawa is located at 42°1'36"N 96°5'50"W (42.0266500, -96.0972400).

Onawa map

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Weather

67°F
Showers And Thunderstorms
12 to 21 mph SE Saturday

Showers and thunderstorms. Cloudy, with a high near 67. Southeast wind 12 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. New...

7-Day Forecast

Official website of Onawa

Official Website

Demographics

According to census records, the population of Onawa decreased by 8.39% in 10 years.

Year Population % Change Method
2010 2,998 - census
2011 2,993 -0.17% estimation process
2012 2,932 -2.08% estimation process
2013 2,906 -0.89% estimation process
2014 2,862 -1.54% estimation process
2015 2,853 -0.32% estimation process
2016 2,829 -0.85% estimation process
2017 2,806 -0.82% estimation process
2018 2,783 -0.83% estimation process
2019 2,764 -0.69% estimation process
2020 2,766 0.07% estimation process
Onawa zip code is 51040. County name: Monona, County fips: 19133
Onava, awnawa, awnawa aywwa, Онава, أوناوا, اوناوا، آیووا

People born in Onawa (5)

People born in Onawa, including football player Vernon Prichard, politician in Iowa Brad Hansen, politician Wayne M. Ropes, .

More notable people

  • Doug Fessenden (American football coach and administrator) he was born in 07/09/1901
  • Mark H. Holmes (American mathematician) he was born in 07/11/1950

Nearby Schools and Colleges

Schools and campuses linked to Onawa, IA. Select a name to open its map and contact details.

Code Name City ZIP
181419 Nebraska Indian Community College Macy (NE) 68039-0428
434016 Little Priest Tribal College Winnebago (NE) 68071-0270
154457 Iowa School of Beauty-Sioux City Sioux City (IA) 51106
154004 Morningside College Sioux City (IA) 51106-1751

Nearby Transit Stations (1)

Rail and bus stations connected to Onawa, IA. Select a station to open its map and address details.

Code Name Address Type
OMA Omaha 1003 S. 9th Street RAIL

Closest post offices linked to Onawa.

Post Office Name City ZIP
Onawa Post Office Onawa (IA) 51040

Other cities in Monona County

Cities, towns, neighborhoods & other populated places in Monona County , IA.

City Name Population Title
Mapleton 1,147 City in Monona County, Iowa, United States
Whiting 721 City in Monona County, Iowa, United States
Ute 337 City in Monona County, Iowa, United States of America
Moorhead 202 City in Iowa, United States
Blencoe 196 Human settlement in United States of America
Soldier 168 City in Iowa, United States
Castana 133 Human settlement in Monona County, Iowa, United States of America
Turin 63 City in Iowa, United States
Rodney 57 City in Monona County, Iowa

Distance to Other Cities

Onawa distances to largest Iowa cities