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Single Family ResidenceResidential
$96,168$84 / 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 68How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026

507 PARK ST

WALNUT, IA 51577
2
Beds
2
Baths
1,140 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.
3,920 ft²
Lot SizeThe size of the land the home sits on, from county records.
1920
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$96K
$65K low$127K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$908 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$102,800 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$7,100
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$95,700
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$102,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$102,800

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.39
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
22
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
70
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
55
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
47
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

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
CountyPOTTAWATTAMIE
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1950
Lot (acres)The size of the land the home sits on, from county records.0.09
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
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 152 ft²

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

M
AHSTW Intermediate SchoolB+
Middle · Grades 4–8 · 6.2 mi
H
AHSTW High SchoolA-
High · Grades 9–12 · 6.2 mi
E
AHSTW Primary SchoolB-
Elementary · Grades PK–3 · 6.2 mi

District: Ahstw Community School District

Neighborhood · ZIP 51577These 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.173
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.94
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.15

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.89%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.17%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.1,061
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.13 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$68,405
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$85,432
Average tempThe average temperature here across a full year.49°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.59%

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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

507 Park 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 96% of homes in Pottawattamie County
  • Costs less per square foot than 98% of homes in Pottawattamie County
  • Among the smallest lots in Walnut 51577
  • Older than 71% of homes in Pottawattamie County

What homes are worth in Walnut 51577

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

This home
$41K$480K

This home is worth more than 27% of homes in Walnut 51577.

How it measures up in Walnut 51577

The dot is this home. The mark in the middle is the typical home in Walnut 51577.

Estimated value$96,168
CheaperTypical $117,928Pricier

Pricier than 27% of homes nearby

Price per ft²$84
CheaperTypical $107Pricier

Pricier than 18% of homes nearby

Living area1,140 ft²
SmallerTypical 1,148 ft²Bigger

Bigger than 48% of homes nearby

Lot size3,920 ft²
SmallerTypical 0.41 acBigger

Smaller than almost all homes nearby

Year built1920
OlderTypical 1920Newer

Newer than 61% of homes nearby

How 507 Park St ranks against every home in each area.
MeasureThis homeWalnut 51577Pottawattamie County
Estimated valuepricier than$96,16827% of homes4% of homes
Price per ft²pricier than$8418% of homes2% of homes
Living areabigger than1,140 ft²48% of homes54% of homes
Lot sizebigger than3,920 ft²almost no homes3% of homes
Year builtnewer than192061% of homes29% of homes

About 507 Park St

How much is 507 Park St, Walnut, IA worth?

The TopHap Estimate for 507 Park St, Walnut, IA is $96,168 as of Oct 21, 2026. The likely range is $65,310 to $127,026. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 507 Park St, Walnut, IA last sell?

507 Park St, Walnut, IA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 507 Park St, Walnut, IA?

507 Park St, Walnut, IA has 2 bedrooms, 2 bathrooms, 1,140 square feet of living space and a 0.09-acre lot.

When was 507 Park St, Walnut, IA built?

507 Park St, Walnut, IA was built in 1920, making it 106 years old. The building has 1 story.

What schools serve 507 Park St, Walnut, IA?

507 Park St, Walnut, IA is assigned to AHSTW Intermediate School (middle), rated B+; AHSTW High School (high), rated A-; AHSTW Primary School (elementary), rated B-. All sit in Ahstw Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 507 Park St, Walnut, IA compare to other homes in Walnut 51577?

Among the 528 homes in Walnut 51577, it is worth more than 27% of them ($96,168 against a typical $117,928), its price per square foot is higher than 18% of them ($84 against a typical $107), it is bigger than 48% of them (1,140 ft² against a typical 1,148 ft²), its lot is bigger than almost none of them (3,920 ft² against a typical 0.41 ac) and it is newer than 61% of them (1920 against a typical 1920). Measured against all of Pottawattamie County, it is worth more than 4% 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 507 Park St, Walnut, IA?

The 2025 property tax bill for 507 Park St, Walnut, IA was $908. The county assessed it at $102,800.

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Assigned schools

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