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Rural ResidenceResidential
$387,218$147 / 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 79How 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

10402 E BIG ROCK RD

DUNKERTON, IA 50626
4
Beds
3
Baths
2,637 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.
24.7 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.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
4
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$387K
$305K low$469K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,412 (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.$303,640 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$62,340
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$241,300
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$271,260
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$303,640

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Rural Residence
CountyBLACK HAWK
Lot (acres)The size of the land the home sits on, from county records.24.70
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
GarageWhether the property has a garage, and details like whether it is attached to the home.Mixed
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.Shed · 1,048 ft²Patio · 28 ft²Porch · 624 ft²

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

E
Dunkerton Elementary SchoolC-
Elementary · Grades PK–5 · 1.7 mi
M
Dunkerton High SchoolB-
Middle · Grades 6–12 · 1.7 mi

District: Dunkerton Community School District

Neighborhood · ZIP 50626These 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.71
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.83
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.13

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.94%
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.5.6%
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.1,724
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.35 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$84,487
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$91,145
Average tempThe average temperature here across a full year.47°F
Annual precipHow much rain and melted snow falls here in a typical year.35 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

10402 E Big Rock Rd 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 more than 90% of homes in Black Hawk County
  • Bigger than 97% of homes in Dunkerton 50626
  • Among the largest lots in Black Hawk County
  • Older than 98% of homes in Black Hawk County

What homes are worth in Dunkerton 50626

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

This home
$82K$591K

This home is worth more than 85% of homes in Dunkerton 50626.

How it measures up in Dunkerton 50626

The dot is this home. The mark in the middle is the typical home in Dunkerton 50626.

Estimated value$387,218
CheaperTypical $248,325Pricier

Pricier than 85% of homes nearby

Price per ft²$147
CheaperTypical $167Pricier

Pricier than 39% of homes nearby

Living area2,637 ft²
SmallerTypical 1,440 ft²Bigger

Bigger than 97% of homes nearby

Lot size24.7 ac
SmallerTypical 0.38 acBigger

Bigger than 91% of homes nearby

Year built1890
OlderTypical 1975Newer

Newer than 3% of homes nearby

How 10402 E Big Rock Rd ranks against every home in each area.
MeasureThis homeDunkerton 50626Black Hawk County
Estimated valuepricier than$387,21885% of homes90% of homes
Price per ft²pricier than$14739% of homes40% of homes
Living areabigger than2,637 ft²97% of homes96% of homes
Lot sizebigger than24.7 ac91% of homesalmost all homes
Year builtnewer than18903% of homes2% of homes

About 10402 E Big Rock Rd

How much is 10402 E Big Rock Rd, Dunkerton, IA worth?

The TopHap Estimate for 10402 E Big Rock Rd, Dunkerton, IA is $387,218 as of Sep 24, 2026. The likely range is $305,328 to $469,108. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 10402 E Big Rock Rd, Dunkerton, IA last sell?

10402 E Big Rock Rd, Dunkerton, IA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 10402 E Big Rock Rd, Dunkerton, IA?

10402 E Big Rock Rd, Dunkerton, IA has 4 bedrooms, 3 bathrooms, 2,637 square feet of living space and a 24.70-acre lot.

When was 10402 E Big Rock Rd, Dunkerton, IA built?

10402 E Big Rock Rd, Dunkerton, IA was built in 1890, making it 136 years old. The building has 2 stories.

What schools serve 10402 E Big Rock Rd, Dunkerton, IA?

10402 E Big Rock Rd, Dunkerton, IA is assigned to Dunkerton Elementary School (elementary), rated C-; Dunkerton High School (middle), rated B-. All sit in Dunkerton Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 10402 E Big Rock Rd, Dunkerton, IA compare to other homes in Dunkerton 50626?

Among the 696 homes in Dunkerton 50626, it is worth more than 85% of them ($387,218 against a typical $248,325), its price per square foot is higher than 39% of them ($147 against a typical $167), it is bigger than 97% of them (2,637 ft² against a typical 1,440 ft²), its lot is bigger than 91% of them (24.7 ac against a typical 0.38 ac) and it is newer than 3% of them (1890 against a typical 1975). Measured against all of Black Hawk County, it is worth more than 90% 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 10402 E Big Rock Rd, Dunkerton, IA?

The 2025 property tax bill for 10402 E Big Rock Rd, Dunkerton, IA was $3,412. The county assessed it at $303,640.

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