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Single Family ResidenceResidential
$88,744$70 / 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 90How 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
Last sold for $25,000 on Feb 23, 2018

531 WALNUT ST

OSAGE, IA 50461
4
Beds
1
Baths
1,269 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.
0.24 ac
Lot SizeThe size of the land the home sits on, from county records.
1890
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$89K
$80K low$97K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$25,000 · Feb 23, 2018

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$862 (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.$54,420 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$11,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$42,520
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$51,810
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$54,420

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.29
21
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
5
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
62
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
53
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
7
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.3 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.minimal

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyMitchell
Lot (acres)The size of the land the home sits on, from county records.0.24
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Block (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Forced Air
CoolingThe type of cooling or air conditioning in the home.Yes
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 70 ft²Patio · 329 ft²

Transaction History(2)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

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

E
Lincoln Elementary SchoolB+
Elementary · Grades PK–4 · 0.1 mi
H
Osage High SchoolA-
High · Grades 9–12 · 0.7 mi
M
Osage Middle SchoolB-
Middle · Grades 5–8 · 0.7 mi

District: Osage Community School District

Neighborhood · ZIP 50461These 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.126
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.78
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.7

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.91%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.15%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.8%
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.5,704
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.32 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$64,718
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$81,669
Average tempThe average temperature here across a full year.46°F
Annual precipHow much rain and melted snow falls here in a typical year.34 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

531 Walnut St 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.

  • Worth less than 91% of homes in Osage 50461
  • Costs less per square foot than 90% of homes in Osage 50461
  • Smaller than 70% of homes in Mitchell County
  • Has a smaller lot than 67% of homes in Mitchell County
  • Older than 96% of homes in Osage 50461

What homes are worth in Osage 50461

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

This home
$58K$720K

This home is worth more than 9% of homes in Osage 50461.

How it measures up in Osage 50461

The dot is this home. The mark in the middle is the typical home in Osage 50461.

Estimated value$88,744
CheaperTypical $195,513Pricier

Pricier than 9% of homes nearby

Price per ft²$70
CheaperTypical $138Pricier

Pricier than 10% of homes nearby

Living area1,269 ft²
SmallerTypical 1,506 ft²Bigger

Bigger than 33% of homes nearby

Lot size0.24 ac
SmallerTypical 0.3 acBigger

Bigger than 42% of homes nearby

Year built1890
OlderTypical 1953Newer

Newer than 4% of homes nearby

How 531 Walnut St ranks against every home in each area.
MeasureThis homeOsage 50461Mitchell County
Estimated valuepricier than$88,7449% of homes10% of homes
Price per ft²pricier than$7010% of homes12% of homes
Living areabigger than1,269 ft²33% of homes30% of homes
Lot sizebigger than0.24 ac42% of homes33% of homes
Year builtnewer than18904% of homes5% of homes

About 531 Walnut St

How much is 531 Walnut St, Osage, IA worth?

The TopHap Estimate for 531 Walnut St, Osage, IA is $88,744 as of Aug 30, 2026. The likely range is $80,245 to $97,243. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 531 Walnut St, Osage, IA last sell?

531 Walnut St, Osage, IA last sold on Feb 23, 2018 for $25,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 531 Walnut St, Osage, IA?

531 Walnut St, Osage, IA has 4 bedrooms, 1 bathrooms, 1,269 square feet of living space and a 0.24-acre lot.

When was 531 Walnut St, Osage, IA built?

531 Walnut St, Osage, IA was built in 1890, making it 136 years old. The building has 2 stories.

What schools serve 531 Walnut St, Osage, IA?

531 Walnut St, Osage, IA is assigned to Lincoln Elementary School (elementary), rated B+; Osage High School (high), rated A-; Osage Middle School (middle), rated B-. All sit in Osage Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 531 Walnut St, Osage, IA compare to other homes in Osage 50461?

Among the 2,505 homes in Osage 50461, it is worth more than 9% of them ($88,744 against a typical $195,513), its price per square foot is higher than 10% of them ($70 against a typical $138), it is bigger than 33% of them (1,269 ft² against a typical 1,506 ft²), its lot is bigger than 42% of them (0.24 ac against a typical 0.3 ac) and it is newer than 4% of them (1890 against a typical 1953). Measured against all of Mitchell County, it is worth more than 10% 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 531 Walnut St, Osage, IA?

The 2024 property tax bill for 531 Walnut St, Osage, IA was $862. The county assessed it at $54,420.

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