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Single Family ResidenceResidential
$118,390$94 / 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 75How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026

400 PARK ST

WALNUT, IA 51577
3
Beds
1
Baths
1,264 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.
0.11 ac
Lot SizeThe size of the land the home sits on, from county records.
1971
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

$118K
$89K low$148K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,486 (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.$139,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$8,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$130,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$139,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$139,000

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.
24
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
Lot (acres)The size of the land the home sits on, from county records.0.11
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.None

Transaction History(1)

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.

M
AHSTW Intermediate SchoolA
Middle · Grades 4–8 · 6.2 mi
H
AHSTW High SchoolB+
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

400 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 91% of homes in Pottawattamie County
  • Costs less per square foot than 97% of homes in Pottawattamie County
  • Bigger than 65% of homes in Pottawattamie County
  • Has a smaller lot than 98% of homes in Walnut 51577
  • Newer than 81% of homes in Walnut 51577

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
$38K$446K

This home is worth more than 49% 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$118,390
CheaperTypical $120,615Pricier

Pricier than 49% of homes nearby

Price per ft²$94
CheaperTypical $113Pricier

Pricier than 24% of homes nearby

Living area1,264 ft²
SmallerTypical 1,146 ft²Bigger

Bigger than 63% of homes nearby

Lot size0.11 ac
SmallerTypical 0.41 acBigger

Bigger than 2% of homes nearby

Year built1971
OlderTypical 1920Newer

Newer than 81% of homes nearby

How 400 Park St ranks against every home in each area.
MeasureThis homeWalnut 51577Pottawattamie County
Estimated valuepricier than$118,39049% of homes9% of homes
Price per ft²pricier than$9424% of homes3% of homes
Living areabigger than1,264 ft²63% of homes65% of homes
Lot sizebigger than0.11 ac2% of homes9% of homes
Year builtnewer than197181% of homes63% of homes

About 400 Park St

How much is 400 Park St, Walnut, IA worth?

The TopHap Estimate for 400 Park St, Walnut, IA is $118,390 as of Sep 24, 2026. The likely range is $88,996 to $147,784. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is 400 Park St, Walnut, IA?

400 Park St, Walnut, IA has 3 bedrooms, 1 bathrooms, 1,264 square feet of living space and a 0.11-acre lot.

When was 400 Park St, Walnut, IA built?

400 Park St, Walnut, IA was built in 1971, making it 55 years old. The building has 1 story.

What schools serve 400 Park St, Walnut, IA?

400 Park St, Walnut, IA is assigned to AHSTW Intermediate School (middle), rated A; AHSTW High School (high), rated B+; 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 400 Park St, Walnut, IA compare to other homes in Walnut 51577?

Among the 552 homes in Walnut 51577, it is worth more than 49% of them ($118,390 against a typical $120,615), its price per square foot is higher than 24% of them ($94 against a typical $113), it is bigger than 63% of them (1,264 ft² against a typical 1,146 ft²), its lot is bigger than 2% of them (0.11 ac against a typical 0.41 ac) and it is newer than 81% of them (1971 against a typical 1920). Measured against all of Pottawattamie County, it is worth more than 9% 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 400 Park St, Walnut, IA?

The 2024 property tax bill for 400 Park St, Walnut, IA was $1,486. The county assessed it at $139,000.

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