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Residential (General/Single)Residential
$138,598$150 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 79How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026

ONAWA, IA 51040
2
Beds
1
Baths
924 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
1978
Year BuiltThe year the home was originally built, according to county records.
3
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$139K
$109K low$168K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$98 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$9,489 (2025)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$9,489
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$9,411
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$9,489

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.11 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Residential (General/Single)
StyleThe architectural style of the home, such as ranch or colonial.Mobile Home
CountyMONONA
RoofThe main material covering the roof, such as asphalt shingle or tile.Metal
HeatingThe type of heating system in the home.None
CoolingThe type of cooling or air conditioning in the home.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

H
West Monona High SchoolB
High · Grades 9–12 · 6.3 mi
M
West Monona Middle SchoolB
Middle · Grades 6–8 · 6.3 mi
E
West Monona Elementary SchoolB-
Elementary · Grades PK–5 · 7.2 mi

District: West Monona Community School District

Neighborhood · ZIP 51040These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.

CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.100
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.90
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.16

Index scale: 100 = US average (tick). Lower is better.

Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.90%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.10%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.13%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.8%
PopulationHow many people live in this area.3,959
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.29 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$57,746
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$72,985
Average tempThe average temperature here across a full year.49°F
Annual precipHow much rain and melted snow falls here in a typical year.30 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.61%

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Data by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.

How this home compares

measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.

  • Costs more per square foot than 82% of homes in Monona County
  • Smaller than 83% of homes in Monona County
  • Newer than 75% of homes in Onawa 51040

What homes are worth in Onawa 51040

Each bar is how many homes fall in that price range. The marker is this home.

This home
$23K$427K

This home is worth more than 64% of homes in Onawa 51040.

How it measures up in Onawa 51040

The dot is this home. The mark in the middle is the typical home in Onawa 51040.

Estimated value$138,598
CheaperTypical $105,661Pricier

Pricier than 64% of homes nearby

Price per ft²$150
CheaperTypical $87Pricier

Pricier than 79% of homes nearby

Living area924 ft²
SmallerTypical 1,292 ft²Bigger

Bigger than 20% of homes nearby

Year built1978
OlderTypical 1951Newer

Newer than 75% of homes nearby

How ranks against every home in each area.
MeasureThis homeOnawa 51040Monona County
Estimated valuepricier than$138,59864% of homes64% of homes
Price per ft²pricier than$15079% of homes82% of homes
Living areabigger than924 ft²20% of homes17% of homes
Year builtnewer than197875% of homes74% of homes

About

How much is , Onawa, IA worth?

The TopHap Estimate for , Onawa, IA is $138,598 as of Aug 30, 2026. The likely range is $109,053 to $168,143. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did , Onawa, IA last sell?

, Onawa, IA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is , Onawa, IA?

, Onawa, IA has 2 bedrooms, 1 bathrooms and 924 square feet of living space.

When was , Onawa, IA built?

, Onawa, IA was built in 1978, making it 48 years old. It is a mobile home home.

What schools serve , Onawa, IA?

, Onawa, IA is assigned to West Monona High School (high), rated B; West Monona Middle School (middle), rated B; West Monona Elementary School (elementary), rated B-. All sit in West Monona Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does , Onawa, IA compare to other homes in Onawa 51040?

Among the 1,938 homes in Onawa 51040, it is worth more than 64% of them ($138,598 against a typical $105,661), its price per square foot is higher than 79% of them ($150 against a typical $87), it is bigger than 20% of them (924 ft² against a typical 1,292 ft²) and it is newer than 75% of them (1978 against a typical 1951). Measured against all of Monona County, it is worth more than 64% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on , Onawa, IA?

The 2024 property tax bill for , Onawa, IA was $98. The county assessed it at $9,489.

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Assigned schools

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