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Rural ResidenceResidential
$214,970$216 / 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 Sep 24, 2026

12340 E BIG ROCK RD

DUNKERTON, IA 50626
3
Beds
1
Baths
995 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.
36.58 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.
2
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

$215K
$167K low$263K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,892 (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.$145,250 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$58,490
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$86,760
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$125,480
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$145,250

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.37
28
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
10
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.
58
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
21
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.4 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
CountyBLACK HAWK
Lot (acres)The size of the land the home sits on, from county records.36.58
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 · 160 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 · 3.5 mi
M
Dunkerton High SchoolB-
Middle · Grades 6–12 · 3.5 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

12340 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 77% of homes in Black Hawk County
  • Smaller than 89% of homes in Dunkerton 50626
  • Among the largest lots in Black Hawk County
  • Older than 96% 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
$79K$575K

This home is worth more than 41% 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$214,970
CheaperTypical $247,340Pricier

Pricier than 41% of homes nearby

Price per ft²$216
CheaperTypical $167Pricier

Pricier than 76% of homes nearby

Living area995 ft²
SmallerTypical 1,440 ft²Bigger

Bigger than 11% of homes nearby

Lot size36.58 ac
SmallerTypical 0.37 acBigger

Bigger than 94% of homes nearby

Year built1900
OlderTypical 1975Newer

Newer than 13% of homes nearby

How 12340 E Big Rock Rd ranks against every home in each area.
MeasureThis homeDunkerton 50626Black Hawk County
Estimated valuepricier than$214,97041% of homes58% of homes
Price per ft²pricier than$21676% of homes77% of homes
Living areabigger than995 ft²11% of homes30% of homes
Lot sizebigger than36.58 ac94% of homesalmost all homes
Year builtnewer than190013% of homes4% of homes

About 12340 E Big Rock Rd

How much is 12340 E Big Rock Rd, Dunkerton, IA worth?

The TopHap Estimate for 12340 E Big Rock Rd, Dunkerton, IA is $214,970 as of Sep 24, 2026. The likely range is $166,890 to $263,050. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 12340 E Big Rock Rd, Dunkerton, IA last sell?

12340 E Big Rock Rd, Dunkerton, IA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 12340 E Big Rock Rd, Dunkerton, IA?

12340 E Big Rock Rd, Dunkerton, IA has 3 bedrooms, 1 bathrooms, 995 square feet of living space and a 36.58-acre lot.

When was 12340 E Big Rock Rd, Dunkerton, IA built?

12340 E Big Rock Rd, Dunkerton, IA was built in 1900, making it 126 years old. The building has 2 stories.

What schools serve 12340 E Big Rock Rd, Dunkerton, IA?

12340 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 12340 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 41% of them ($214,970 against a typical $247,340), its price per square foot is higher than 76% of them ($216 against a typical $167), it is bigger than 11% of them (995 ft² against a typical 1,440 ft²), its lot is bigger than 94% of them (36.58 ac against a typical 0.37 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 58% 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 12340 E Big Rock Rd, Dunkerton, IA?

The 2025 property tax bill for 12340 E Big Rock Rd, Dunkerton, IA was $1,892. The county assessed it at $145,250.

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