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Rural ResidenceResidential
$236,446$191 / 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 80How 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
Last sold for $595,000 on Dec 21, 2024

4641 E BIG ROCK RD

WATERLOO, IA 50703
3
Beds
1
Baths
1,240 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.
39.3 ac
Lot SizeThe size of the land the home sits on, from county records.
1910
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$236K
$189K low$284K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$595,000 · Dec 21, 2024

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,980 (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.$156,930 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$48,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$108,530
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$142,320
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$156,930

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.118 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.39.30
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
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
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 · 64 ft²Porch · 64 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 · 4.5 mi
M
Dunkerton High SchoolB-
Middle · Grades 6–12 · 4.5 mi

District: Dunkerton Community School District

Neighborhood · ZIP 50703These 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.131
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.79
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.12

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.90%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.8.7%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.22%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.18,803
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.200 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$49,881
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$60,949
Average tempThe average temperature here across a full year.47°F
Annual precipHow much rain and melted snow falls here in a typical year.34 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

4641 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 93% of homes in Waterloo 50703
  • Costs more per square foot than 95% of homes in Waterloo 50703
  • Bigger than 68% of homes in Waterloo 50703
  • Among the largest lots in Waterloo 50703
  • Older than 91% of homes in Black Hawk County

What homes are worth in Waterloo 50703

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

This home
$34K$351K

This home is worth more than 93% of homes in Waterloo 50703.

How it measures up in Waterloo 50703

The dot is this home. The mark in the middle is the typical home in Waterloo 50703.

Estimated value$236,446
CheaperTypical $83,352Pricier

Pricier than 93% of homes nearby

Price per ft²$191
CheaperTypical $87Pricier

Pricier than 95% of homes nearby

Living area1,240 ft²
SmallerTypical 1,058 ft²Bigger

Bigger than 68% of homes nearby

Lot size39.3 ac
SmallerTypical 0.16 acBigger

Bigger than almost all homes nearby

Year built1910
OlderTypical 1939Newer

Newer than 20% of homes nearby

How 4641 E Big Rock Rd ranks against every home in each area.
MeasureThis homeWaterloo 50703Black Hawk County
Estimated valuepricier than$236,44693% of homes64% of homes
Price per ft²pricier than$19195% of homes65% of homes
Living areabigger than1,240 ft²68% of homes53% of homes
Lot sizebigger than39.3 acalmost all homesalmost all homes
Year builtnewer than191020% of homes9% of homes

About 4641 E Big Rock Rd

How much is 4641 E Big Rock Rd, Waterloo, IA worth?

The TopHap Estimate for 4641 E Big Rock Rd, Waterloo, IA is $236,446 as of Aug 30, 2026. The likely range is $188,507 to $284,385. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4641 E Big Rock Rd, Waterloo, IA last sell?

4641 E Big Rock Rd, Waterloo, IA last sold on Dec 21, 2024 for $595,000, according to the county's recorded deed.

How big is 4641 E Big Rock Rd, Waterloo, IA?

4641 E Big Rock Rd, Waterloo, IA has 3 bedrooms, 1 bathrooms, 1,240 square feet of living space and a 39.30-acre lot.

When was 4641 E Big Rock Rd, Waterloo, IA built?

4641 E Big Rock Rd, Waterloo, IA was built in 1910, making it 116 years old. The building has 2 stories.

What schools serve 4641 E Big Rock Rd, Waterloo, IA?

4641 E Big Rock Rd, Waterloo, 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 4641 E Big Rock Rd, Waterloo, IA compare to other homes in Waterloo 50703?

Among the 7,469 homes in Waterloo 50703, it is worth more than 93% of them ($236,446 against a typical $83,352), its price per square foot is higher than 95% of them ($191 against a typical $87), it is bigger than 68% of them (1,240 ft² against a typical 1,058 ft²), its lot is bigger than almost all of them (39.3 ac against a typical 0.16 ac) and it is newer than 20% of them (1910 against a typical 1939). Measured against all of Black Hawk County, it is worth more than 64% 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 4641 E Big Rock Rd, Waterloo, IA?

The 2025 property tax bill for 4641 E Big Rock Rd, Waterloo, IA was $1,980. The county assessed it at $156,930.

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