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Rural ResidenceResidential
$221,779$223 / 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 78How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026

11645 E BIG ROCK RD

DUNKERTON, IA 50626
3
Beds
1
Baths
994 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.
40 ac
Lot SizeThe size of the land the home sits on, from county records.
1900
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

$222K
$173K low$271K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,354 (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.$134,620 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$49,990
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$84,630
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$113,170
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$134,620

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.92 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
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.1 percent flood zone

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
CountyBLACK HAWK
Lot (acres)The size of the land the home sits on, from county records.40.00
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.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.Porch · 248 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 · 2.7 mi
M
Dunkerton High SchoolB-
Middle · Grades 6–12 · 2.7 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

11645 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.

  • Costs more per square foot than 81% of homes in Dunkerton 50626
  • Smaller than 89% of homes in Dunkerton 50626
  • Among the largest lots in Dunkerton 50626
  • Older than 95% 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
$76K$564K

This home is worth more than 46% 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$221,779
CheaperTypical $235,080Pricier

Pricier than 46% of homes nearby

Price per ft²$223
CheaperTypical $163Pricier

Pricier than 81% of homes nearby

Living area994 ft²
SmallerTypical 1,439 ft²Bigger

Bigger than 11% of homes nearby

Lot size40 ac
SmallerTypical 0.38 acBigger

Bigger than almost all homes nearby

Year built1900
OlderTypical 1975Newer

Newer than 13% of homes nearby

How 11645 E Big Rock Rd ranks against every home in each area.
MeasureThis homeDunkerton 50626Black Hawk County
Estimated valuepricier than$221,77946% of homes60% of homes
Price per ft²pricier than$22381% of homes81% of homes
Living areabigger than994 ft²11% of homes30% of homes
Lot sizebigger than40 acalmost all homesalmost all homes
Year builtnewer than190013% of homes5% of homes

About 11645 E Big Rock Rd

How much is 11645 E Big Rock Rd, Dunkerton, IA worth?

The TopHap Estimate for 11645 E Big Rock Rd, Dunkerton, IA is $221,779 as of Aug 30, 2026. The likely range is $172,975 to $270,583. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 11645 E Big Rock Rd, Dunkerton, IA last sell?

11645 E Big Rock Rd, Dunkerton, IA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 11645 E Big Rock Rd, Dunkerton, IA?

11645 E Big Rock Rd, Dunkerton, IA has 3 bedrooms, 1 bathrooms, 994 square feet of living space and a 40.00-acre lot.

When was 11645 E Big Rock Rd, Dunkerton, IA built?

11645 E Big Rock Rd, Dunkerton, IA was built in 1900, making it 126 years old. The building has 1 story.

What schools serve 11645 E Big Rock Rd, Dunkerton, IA?

11645 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 11645 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 46% of them ($221,779 against a typical $235,080), its price per square foot is higher than 81% of them ($223 against a typical $163), it is bigger than 11% of them (994 ft² against a typical 1,439 ft²), its lot is bigger than almost all of them (40 ac against a typical 0.38 ac) and it is newer than 13% of them (1900 against a typical 1975). Measured against all of Black Hawk County, it is worth more than 60% 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 11645 E Big Rock Rd, Dunkerton, IA?

The 2025 property tax bill for 11645 E Big Rock Rd, Dunkerton, IA was $1,354. The county assessed it at $134,620.

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