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Rural ResidenceResidential
$381,793$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 86How 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

4531 HIGHWAY 21

GUERNSEY, IA 52221
5 / 2
Baths
2,540 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.
20.3 ac
Lot SizeThe size of the land the home sits on, from county records.
2019
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
4
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$382K
$329K low$434K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$8,938 (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.$768,290 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$35,920
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$732,370
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$732,570
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$768,290

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.13 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.Rural Residence
CountyPOWESHIEK
Lot (acres)The size of the land the home sits on, from county records.20.30
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Yes
CoolingThe type of cooling or air conditioning in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
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.Deck · 150 ft²Patio · 1,222 ft²Porch · 473 ft²

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

E
Brooklyn-Guernsey-Malcom Elementary SchoolB+
Elementary · Grades PK–6 · 8.3 mi
M
Brooklyn-Guernsey-Malcom Jr-Sr High SchoolB
Middle · Grades 7–12 · 8.3 mi

District: Brooklyn-Guernsey-Malcom Community School District

Neighborhood · ZIP 52221These 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.141
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.91
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.19

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.85%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.7.0%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.7%
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.196
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.9 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$74,147
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$96,111
Average tempThe average temperature here across a full year.49°F
Annual precipHow much rain and melted snow falls here in a typical year.36 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

4531 Highway 21 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.

  • Among the most valuable homes in Guernsey 52221
  • Costs more per square foot than 76% of homes in Guernsey 52221
  • Bigger than 93% of homes in Poweshiek County
  • Has a bigger lot than 93% of homes in Poweshiek County
  • Newer than 97% of homes in Guernsey 52221

What homes are worth in Guernsey 52221

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

This home
$22K$373K

This home is worth more than almost all homes in Guernsey 52221.

How it measures up in Guernsey 52221

The dot is this home. The mark in the middle is the typical home in Guernsey 52221.

Estimated value$381,793
CheaperTypical $166,679Pricier

Pricier than almost all homes nearby

Price per ft²$150
CheaperTypical $93Pricier

Pricier than 76% of homes nearby

Living area2,540 ft²
SmallerTypical 1,664 ft²Bigger

Bigger than 92% of homes nearby

Lot size20.3 ac
SmallerTypical 2.75 acBigger

Bigger than 78% of homes nearby

Year built2019
OlderTypical 1915Newer

Newer than 97% of homes nearby

How 4531 Highway 21 ranks against every home in each area.
MeasureThis homeGuernsey 52221Poweshiek County
Estimated valuepricier than$381,793almost all homes86% of homes
Price per ft²pricier than$15076% of homes57% of homes
Living areabigger than2,540 ft²92% of homes93% of homes
Lot sizebigger than20.3 ac78% of homes93% of homes
Year builtnewer than201997% of homes97% of homes

About 4531 Highway 21

How much is 4531 Highway 21, Guernsey, IA worth?

The TopHap Estimate for 4531 Highway 21, Guernsey, IA is $381,793 as of Sep 24, 2026. The likely range is $329,158 to $434,428. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4531 Highway 21, Guernsey, IA last sell?

4531 Highway 21, Guernsey, IA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 4531 Highway 21, Guernsey, IA?

4531 Highway 21, Guernsey, IA has 5 bathrooms, 2,540 square feet of living space and a 20.30-acre lot.

When was 4531 Highway 21, Guernsey, IA built?

4531 Highway 21, Guernsey, IA was built in 2019, making it 7 years old. The building has 1 story.

What schools serve 4531 Highway 21, Guernsey, IA?

4531 Highway 21, Guernsey, IA is assigned to Brooklyn-Guernsey-Malcom Elementary School (elementary), rated B+; Brooklyn-Guernsey-Malcom Jr-Sr High School (middle), rated B. All sit in Brooklyn-Guernsey-Malcom Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4531 Highway 21, Guernsey, IA compare to other homes in Guernsey 52221?

Among the 102 homes in Guernsey 52221, it is worth more than almost all of them ($381,793 against a typical $166,679), its price per square foot is higher than 76% of them ($150 against a typical $93), it is bigger than 92% of them (2,540 ft² against a typical 1,664 ft²), its lot is bigger than 78% of them (20.3 ac against a typical 2.75 ac) and it is newer than 97% of them (2019 against a typical 1915). Measured against all of Poweshiek County, it is worth more than 86% 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 4531 Highway 21, Guernsey, IA?

The 2025 property tax bill for 4531 Highway 21, Guernsey, IA was $8,938. The county assessed it at $768,290.

More homes on Highway 21

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