Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$124,041$83 / 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 $104,000 on Jun 26, 2017

641 E BIG ROCK RD

WATERLOO, IA 50703
3
Beds
1
Baths
1,501 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.
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.

Valuation

$124K
$100K low$148K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$104,000 · Jun 26, 2017

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,138 (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.$130,230 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$53,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$77,230
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$125,760
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$130,230

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyBLACK HAWK
Lot (acres)The size of the land the home sits on, from county records.3.00
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.Patio · 16 ft²Porch · 332 ft²

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

M
George Washington Carver AcademyD-
Middle · Grades 6–8 · 2.5 mi
E
Dr. Walter Cunningham School for ExcellenceC-
Elementary · Grades PK–5 · 3.3 mi
H
Waterloo East High SchoolD-
High · Grades 9–12 · 3.8 mi

District: Waterloo 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%

Owner Tools

Do you own this home?
Claim this home

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

641 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 less than 76% of homes in Black Hawk County
  • Costs less per square foot than 88% of homes in Black Hawk County
  • Bigger than 83% of homes in Waterloo 50703
  • Has a bigger lot than 96% of homes 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$347K

This home is worth more than 71% 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$124,041
CheaperTypical $83,187Pricier

Pricier than 71% of homes nearby

Price per ft²$83
CheaperTypical $86Pricier

Pricier than 47% of homes nearby

Living area1,501 ft²
SmallerTypical 1,057 ft²Bigger

Bigger than 83% of homes nearby

Lot size3 ac
SmallerTypical 0.16 acBigger

Bigger than 96% of homes nearby

Year built1910
OlderTypical 1940Newer

Newer than 20% of homes nearby

How 641 E Big Rock Rd ranks against every home in each area.
MeasureThis homeWaterloo 50703Black Hawk County
Estimated valuepricier than$124,04171% of homes24% of homes
Price per ft²pricier than$8347% of homes12% of homes
Living areabigger than1,501 ft²83% of homes70% of homes
Lot sizebigger than3 ac96% of homes96% of homes
Year builtnewer than191020% of homes9% of homes

About 641 E Big Rock Rd

How much is 641 E Big Rock Rd, Waterloo, IA worth?

The TopHap Estimate for 641 E Big Rock Rd, Waterloo, IA is $124,041 as of Aug 30, 2026. The likely range is $99,796 to $148,286. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 641 E Big Rock Rd, Waterloo, IA last sell?

641 E Big Rock Rd, Waterloo, IA last sold on Jun 26, 2017 for $104,000, according to the county's recorded deed.

How big is 641 E Big Rock Rd, Waterloo, IA?

641 E Big Rock Rd, Waterloo, IA has 3 bedrooms, 1 bathrooms, 1,501 square feet of living space and a 3.00-acre lot.

When was 641 E Big Rock Rd, Waterloo, IA built?

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

What schools serve 641 E Big Rock Rd, Waterloo, IA?

641 E Big Rock Rd, Waterloo, IA is assigned to George Washington Carver Academy (middle), rated D-; Dr. Walter Cunningham School for Excellence (elementary), rated C-; Waterloo East High School (high), rated D-. All sit in Waterloo Community School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 641 E Big Rock Rd, Waterloo, IA compare to other homes in Waterloo 50703?

Among the 7,470 homes in Waterloo 50703, it is worth more than 71% of them ($124,041 against a typical $83,187), its price per square foot is higher than 47% of them ($83 against a typical $86), it is bigger than 83% of them (1,501 ft² against a typical 1,057 ft²), its lot is bigger than 96% of them (3 ac against a typical 0.16 ac) and it is newer than 20% of them (1910 against a typical 1940). Measured against all of Black Hawk County, it is worth more than 24% 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 641 E Big Rock Rd, Waterloo, IA?

The 2025 property tax bill for 641 E Big Rock Rd, Waterloo, IA was $2,138. The county assessed it at $130,230.

More homes on E Big Rock Rd

Closest homes

More homes in Waterloo 50703

Assigned schools

Explore the area

See this home in context

Open 641 E Big Rock Rd on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map