Onawa, Iowa: commercial real estate data.
Onawa is a Census city of 2,839 people across 5.27 square miles of land, in Monona County. Median household income is $62,143, 73.7 percent of occupied homes are owned.
Underlined figures are computed by MMCG Analytics, not published by the agency.
Onawa
What Onawa is
- Census place typecity
- Land area5.27 sq mi
- Water area0 sq mi
- Population per square mile of land539
- County holding the largest share of its areaMonona County, 100.0 percent
US Census Bureau, cartographic boundary file, places, 2024 vintage. US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Onawa
How many people live in Onawa
- Population2,839
- Median age35.5
- Population under 18728
- Share under 1825.6 percent
- Population 65 and over609 plus or minus 126
- Share 65 and over21.5 percent plus or minus 4.4
- Households1,256
- Family households697
- Share of households that are families55.5 percent
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Onawa
Income and work in Onawa
- Median household income$62,143 plus or minus $15,539
- Per capita income$29,522
- Civilian labor force1,285
- Employed1,270
- Unemployed15 plus or minus 16
- Unemployment rate1.2 percent plus or minus 1.2
- Adults 25 and over1,852
- Adults 25 and over with a high school diploma or higher90.3 percent
- Adults 25 and over with a bachelor degree or higher19.4 percent plus or minus 6.4
- Adults 25 and over with a graduate degree6.5 percent plus or minus 3.8
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Onawa
Housing in Onawa
- Housing units1,369
- Occupied units1,256
- Vacant units113 plus or minus 84
- Vacancy rate8.3 percent plus or minus 6.1
- Owner occupied926
- Renter occupied330 plus or minus 100
- Ownership rate73.7 percent
- Median owner-occupied home value$145,800
- Median gross rent, monthly$1,037
- Annual rent as a share of median income20.0 percent plus or minus 6.1
- Single family units1,160
- Share single family84.7 percent
- Units in buildings of two or more207 plus or minus 92
- Share in buildings of two or more15.1 percent plus or minus 6.7
- Mobile homes2 plus or minus 4
- Median year structure built1960
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Onawa
How Onawa gets to work
- Workers 16 and over who commute1,213
- Commuting under 15 minutes673 plus or minus 158
- Share commuting under 15 minutes55.5 percent
- Commuting 30 minutes or more302 plus or minus 134
- Share commuting 30 minutes or more24.9 percent plus or minus 10.6
- Drove alone83.7 percent
- Carpooled14.8 percent plus or minus 9.8
- Public transport0.0 percent
- Walked0.1 percent plus or minus 0.2
- Worked from home1.5 percent plus or minus 2.1
US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Onawa
SBA loans in Onawa (504)
- Approvals2
- Gross approval$453,000
- Average approval$226,500
- Median approval$226,500
- Largest approval$323,000
- Jobs supported10
- Loans with a final outcome1
- Charged off0
- Median term240 months
- Distinct CDCs2
Counted by borrower city: approvals to borrowers whose address is in Onawa, in any county, FY2010 to FY2026. Only 1 loan has reached a final outcome, fewer than the 30 a charge-off rate needs, so no rate is published.
US Small Business Administration, 504 FOIA release, FY2010 to FY2026 year to date, as of 2026-06-30.
Onawa
Flood risk in Onawa
- NFIP communityCity of Onawa
- NFIP community number190463
- Participating in the NFIPYes
- Community Rating System classNone
- Currently effective map date06/15/22
The City of Onawa participates in the National Flood Insurance Program as community 190463 and carries no Community Rating System class, so no CRS premium discount applies to it.
Federal Emergency Management Agency, NFIP Community Status Book (OpenFEMA), as of 2026-09-26.
Monona County, not Onawa
Monona County context, not Onawa figures
- Establishments in Monona County228
- Covered employment, Monona County2,530
- Average annual pay, Monona County$45,733
- Housing units permitted, Monona County3
Every figure in this section is published for Monona County as a whole and is not a measurement of Onawa.
US Census Bureau, County Business Patterns, 2023. US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages. US Census Bureau, Building Permits Survey, 2024 annual.
Coverage
What this page does not hold.
Parcel detail, zoning and the flood zone at an address are not on this page; they resolve at the address in the platform. How this page was built →
Common questions
Onawa questions, answered from the record.
How many people live in Onawa, Iowa?
2,839, in 1,256 households. Onawa city covers 5.27 square miles of land, which is 539 people per square mile. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
What county is Onawa in?
Monona County, which holds 100.0 percent of the place by area. Source: US Census Bureau, cartographic boundary file, places, 2024 vintage.
What is the median household income in Onawa?
$62,143. The median owner-occupied home is valued at $145,800. Median gross rent is $1,037 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, place level, 2020-2024 5-year.
Is Onawa in the National Flood Insurance Program?
Yes. Onawa appears in the FEMA Community Status Book as Onawa, city of, community 190463, with no Community Rating System class, so no CRS discount applies. Whether a specific parcel sits in a mapped special flood hazard area is an address level question the platform answers.
Are the county figures on this page Onawa figures?
No, and they are labeled so. County Business Patterns, QCEW, the Building Permits Survey, BEA product and IRS migration are published for Monona County as a whole and there is no place level equivalent. They appear in one clearly marked section as context and are never presented as measurements of Onawa.
Is zoning published for Onawa?
No. Nothing on this page presents parcel level zoning.