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Single Family ResidenceResidential
$239,943$297 / 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 89How 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
Last sold for $215,000 on Sep 10, 2024

21 4TH AVE

UNDERWOOD, IA 51576
2
Beds
2
Baths
807 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.
0.27 ac
Lot SizeThe size of the land the home sits on, from county records.
1955
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
4
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$240K
$214K low$266K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$215,000 · Sep 10, 2024

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,154 (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.$219,800 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$28,300
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$191,500
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$179,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$219,800

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.34
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
26
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
73
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
54
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
20
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.1969
Lot (acres)The size of the land the home sits on, from county records.0.27
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
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.Patio · 274 ft²Porch · 56 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
Underwood Elementary SchoolA
Elementary · Grades PK–5 · 0.4 mi
M
Underwood Middle SchoolA
Middle · Grades 6–8 · 0.4 mi
H
Underwood High SchoolA+
High · Grades 9–12 · 0.4 mi

District: Underwood Community School District

Neighborhood · ZIP 51576These 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.54
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.96
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.22

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.23%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.2.7%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.1,374
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.28 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$101,849
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$115,930
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.33 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

21 4th Ave 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 86% of homes in Underwood 51576
  • Costs more per square foot than 83% of homes in Pottawattamie County
  • Smaller than 97% of homes in Underwood 51576
  • Has a smaller lot than 78% of homes in Underwood 51576
  • Older than 73% of homes in Underwood 51576

What homes are worth in Underwood 51576

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

This home
$120K$800K

This home is worth more than 14% of homes in Underwood 51576.

How it measures up in Underwood 51576

The dot is this home. The mark in the middle is the typical home in Underwood 51576.

Estimated value$239,943
CheaperTypical $386,570Pricier

Pricier than 14% of homes nearby

Price per ft²$297
CheaperTypical $273Pricier

Pricier than 65% of homes nearby

Living area807 ft²
SmallerTypical 1,459 ft²Bigger

Bigger than 3% of homes nearby

Lot size0.27 ac
SmallerTypical 1.03 acBigger

Bigger than 22% of homes nearby

Year built1955
OlderTypical 1987Newer

Newer than 27% of homes nearby

How 21 4th Ave ranks against every home in each area.
MeasureThis homeUnderwood 51576Pottawattamie County
Estimated valuepricier than$239,94314% of homes53% of homes
Price per ft²pricier than$29765% of homes83% of homes
Living areabigger than807 ft²3% of homes13% of homes
Lot sizebigger than0.27 ac22% of homes59% of homes
Year builtnewer than195527% of homes43% of homes

About 21 4th Ave

How much is 21 4th Ave, Underwood, IA worth?

The TopHap Estimate for 21 4th Ave, Underwood, IA is $239,943 as of Oct 21, 2026. The likely range is $213,627 to $266,259. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 4th Ave, Underwood, IA last sell?

21 4th Ave, Underwood, IA last sold on Sep 10, 2024 for $215,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 21 4th Ave, Underwood, IA?

21 4th Ave, Underwood, IA has 2 bedrooms, 2 bathrooms, 807 square feet of living space and a 0.27-acre lot.

When was 21 4th Ave, Underwood, IA built?

21 4th Ave, Underwood, IA was built in 1955, making it 71 years old. The building has 1 story.

What schools serve 21 4th Ave, Underwood, IA?

21 4th Ave, Underwood, IA is assigned to Underwood Elementary School (elementary), rated A; Underwood Middle School (middle), rated A; Underwood High School (high), rated A+. All sit in Underwood Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 4th Ave, Underwood, IA compare to other homes in Underwood 51576?

Among the 807 homes in Underwood 51576, it is worth more than 14% of them ($239,943 against a typical $386,570), its price per square foot is higher than 65% of them ($297 against a typical $273), it is bigger than 3% of them (807 ft² against a typical 1,459 ft²), its lot is bigger than 22% of them (0.27 ac against a typical 1.03 ac) and it is newer than 27% of them (1955 against a typical 1987). Measured against all of Pottawattamie County, it is worth more than 53% 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 21 4th Ave, Underwood, IA?

The 2024 property tax bill for 21 4th Ave, Underwood, IA was $3,154. The county assessed it at $219,800.

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