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Onawa city, Iowa

Onawa city profile, demographic data, and geographic information.

Onawa city is a geographic entity located in Monona County, Iowa. As of official census estimates, it has a reported population of 2,839. The land area covers 5.27 sq mi. [1]

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population 2,839 ±17 2020-2024 / Census ACS 5-Year 2024
Median Age 35.5 yrs ±3 2020-2024 / Census ACS 5-Year 2024
Total Households 1,256 ±95 2020-2024 / Census ACS 5-Year 2024
Source: U.S. Census Bureau (PEP, ACS 5-Year).

Housing & Real Estate Profile

Housing Metric Estimate / Value Margin of Error
Total Housing Units 1,369 ±98
Occupied Housing Units 1,256 ±95
Vacant Housing Units 113 ±84
Median Home Value $145,800 ±$18,282
Median Gross Rent $1,037 ±$184
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $62,143 ±$15,539
Per Capita Income $29,522 ±$3,266
Poverty Rate 16.3% ±8.2%
Population Below Poverty Level 446 ±226
Unemployment Rate 1.2% ±1.2%
Civilian Labor Force, Employed 1,270 ±135
Broadband Internet Rate 84.3% ±2.5%
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Local Government & Public Administration

Authoritative general-purpose local government units serving this area U.S. Census Bureau GUS (2026) / GMAF
Government Unit Unit Type Jurisdiction Role Contact / Address
COUNTY OF MONONA
GUS Population: 8,429 (2024)
ID: 126551
County Official County Government
Contact: MONONA COUNTY AUDITOR
610 IOWA AVE, ONAWA IA 51040-1671

Education

Listing 7 local institutions (NCES 2024-2025) External reference via K12Guides
Institution Type Grades Location
Regular School Onawa PK-05 Onawa, IA
Regular School Onawa 09-12 Onawa, IA
Regular School Onawa 06-08 Onawa, IA
Regular School Nearby PK-05 MACY, NE
Regular School Nearby 09-12 MACY, NE
Regular School Nearby 06-08 MACY, NE
Regular School Nearby PK-06 Sloan, IA
Source: k12guides.com.

Community Facilities & Infrastructure

Displaying 10 civic institutions across 3 datasets queried CMS • IPEDS • IMLS
Facility Name Category Relationship Address / Location Contact
BURGESS HEALTH CENTER
Hospital City address association 1600 DIAMOND STREET, ONAWA, IA, 51040
(712) 423-2311
Nebraska Indian Community College
College 14.8 mi away 1111 Hwy 75, Macy, NE, 68039-0428
4024942311
ONAWA PUBLIC LIBRARY
Library 0.1 mi away 707 IOWA AVE W, ONAWA, IA, 51040
(712) 423-1733
Little Priest Tribal College
College 24.1 mi away 601 E. College Drive, Winnebago, NE, 68071-0270
4028782380155
WHITING PUBLIC LIBRARY
Library 7.7 mi away 407 WHITTIER ST, WHITING, IA, 51063
(712) 455-2612
HORNICK BRANCH
Library 14.2 mi away 510 MAIN ST, HORNICK, IA, 51026
(712) 874-3616
MOORHEAD PUBLIC LIBRARY
Library 14.3 mi away MAIN ST, MOORHEAD, IA, 51558 —
SLOAN PUBLIC LIBRARY
Library 16.0 mi away 502 EVANS ST, SLOAN, IA, 51055
(712) 428-4200
SOLDIER PUBLIC LIBRARY
Library 16.2 mi away 108 OAK ST, SOLDIER, IA, 51572
(712) 884-2266
FISHER-WHITING MEMORIAL LIBRARY
Library 18.2 mi away 609 COURTRIGHT, MAPLETON, IA, 51034
(712) 881-1312
Distances calculated from authoritative source coordinates. Source: CMS, IMLS, NCES IPEDS.

Climate & Weather Observations

NOAA Monthly Climate Normals

Observation Station: Climate data reflects NOAA 1991–2020 standard normals recorded at ONAWA 3NW, IA US, located 3.5 miles from Onawa city. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 30.2° 8.5° 19.4° 0.54" 7.9"
February 35.6° 12.5° 24.0° 0.78" 6.6"
March 49.8° 23.9° 36.8° 1.57" 4.5"
April 62.7° 34.7° 48.7° 3.28" 1.8"
May 73.5° 47.9° 60.7° 4.58" 0.0"
June 83.1° 59.0° 71.0° 4.18" 0.0"
July 86.0° 62.6° 74.3° 3.39" 0.0"
August 83.7° 59.4° 71.5° 4.07" 0.0"
September 78.1° 50.3° 64.2° 2.97" 0.0"
October 65.4° 37.3° 51.3° 2.31" 0.3"
November 48.6° 23.7° 36.1° 1.50" 2.8"
December 34.4° 13.5° 24.0° 0.69" 7.1"
Source: NOAA U.S. Climate Normals (1991–2020).

Local Weather Forecast

Weather forecast data is currently unavailable in the local cache.

Nearby Cities & Communities

Listing adjacent communities by spatial proximity (miles) Proximity discovery
Community Name Classification Distance Population
Onawa city City 0.0 mi —
Turin city City 6.4 mi —
Blencoe city City 6.7 mi —
Whiting city City 7.6 mi —
Decatur village Village 8.2 mi —
Castana city City 9.8 mi —

Sources & Data Provenance

  1. Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 1913393175. • Official Source Dataset →
  2. Socioeconomic & Housing Metrics: U.S. Census Bureau American Community Survey (ACS) 5-year estimates and Population Estimates Program (PEP). Margin of Error (MOE) intervals are reported where published; suppressed values are never estimated or replaced with false zeros.
  3. Civic Directory Datasets: Centers for Medicare & Medicaid Services (CMS Hospital Directory), National Center for Education Statistics (NCES IPEDS Postsecondary Directory), and Institute of Museum and Library Services (IMLS Public Libraries Survey). Airport landing facilities are provided by airport-data.com.
  4. Weather & Climate Observations: National Oceanic and Atmospheric Administration (NOAA) U.S. Climate Normals 1991–2020 and National Weather Service (NWS) point forecasts.