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Single Family ResidenceResidential
$34,771$19 / 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 59How 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
Last sold for $5,000 on Apr 18, 2022

511 SUMNER ST

WATERLOO, IA 50703
3
Beds
1
Baths
1,796 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.
0.14 ac
Lot SizeThe size of the land the home sits on, from county records.
1911
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

$35K
$20K low$49K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$5,000 · Apr 18, 2022

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,058 (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.$62,750 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$5,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$57,250
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$52,650
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$62,750

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.15 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.Single Family Residence
CountyBLACK HAWK
Lot (acres)The size of the land the home sits on, from county records.0.14
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
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 · 126 ft²

Transaction History(1)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

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

E
Dr. Walter Cunningham School for ExcellenceC-
Elementary · Grades PK–5 · 0.2 mi
H
Waterloo East High SchoolD-
High · Grades 9–12 · 0.5 mi
M
George Washington Carver AcademyD-
Middle · Grades 6–8 · 1.2 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%

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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

511 Sumner St 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.

  • Among the least valuable homes in Black Hawk County
  • Among the lowest price per square foot in Black Hawk County
  • Bigger than 97% of homes in Unity
  • Has a smaller lot than 75% of homes in Black Hawk County
  • Older than 90% 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
$33K$345K

This home is worth more than 3% 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$34,771
CheaperTypical $80,675Pricier

Pricier than 3% of homes nearby

Price per ft²$19
CheaperTypical $83Pricier

Cheaper than almost all homes nearby

Living area1,796 ft²
SmallerTypical 1,058 ft²Bigger

Bigger than 91% of homes nearby

Lot size0.14 ac
SmallerTypical 0.16 acBigger

Bigger than 32% of homes nearby

Year built1911
OlderTypical 1939Newer

Newer than 22% of homes nearby

How 511 Sumner St ranks against every home in each area.
MeasureThis homeUnityWaterloo 50703Black Hawk County
Estimated valuepricier than$34,771almost no homes3% of homesalmost no homes
Price per ft²pricier than$19almost no homesalmost no homesalmost no homes
Living areabigger than1,796 ft²97% of homes91% of homes83% of homes
Lot sizebigger than0.14 ac37% of homes32% of homes25% of homes
Year builtnewer than191125% of homes22% of homes10% of homes

About 511 Sumner St

How much is 511 Sumner St, Waterloo, IA worth?

The TopHap Estimate for 511 Sumner St, Waterloo, IA is $34,771 as of Sep 24, 2026. The likely range is $20,342 to $49,200. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 511 Sumner St, Waterloo, IA last sell?

511 Sumner St, Waterloo, IA last sold on Apr 18, 2022 for $5,000, according to the county's recorded deed.

How big is 511 Sumner St, Waterloo, IA?

511 Sumner St, Waterloo, IA has 3 bedrooms, 1 bathrooms, 1,796 square feet of living space and a 0.14-acre lot.

When was 511 Sumner St, Waterloo, IA built?

511 Sumner St, Waterloo, IA was built in 1911, making it 115 years old. The building has 2 stories.

What schools serve 511 Sumner St, Waterloo, IA?

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

How does 511 Sumner St, Waterloo, IA compare to other homes in Waterloo 50703?

Among the 7,469 homes in Waterloo 50703, it is worth more than 3% of them ($34,771 against a typical $80,675), its price per square foot is higher than almost none of them ($19 against a typical $83), it is bigger than 91% of them (1,796 ft² against a typical 1,058 ft²), its lot is bigger than 32% of them (0.14 ac against a typical 0.16 ac) and it is newer than 22% of them (1911 against a typical 1939). Measured against all of Black Hawk County, it is worth more than almost no 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 511 Sumner St, Waterloo, IA?

The 2025 property tax bill for 511 Sumner St, Waterloo, IA was $1,058. The county assessed it at $62,750.

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