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Single Family ResidenceResidential
$301,073$279 / 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 93How 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 $260,000 on Sep 30, 2024

171 20TH ST

FOND DU LAC, WI 54935
3
Beds
2
Baths
1,080 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.
0.24 ac
Lot SizeThe size of the land the home sits on, from county records.
1974
Year BuiltThe year the home was originally built, according to county records.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$301K
$279K low$323K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$260,000 · Sep 30, 2024

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,377 (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.$268,000 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$29,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$239,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$161,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$279,607

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.7 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
CountyFond du Lac
Lot (acres)The size of the land the home sits on, from county records.0.24
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Raised (Unspecified)
HeatingThe type of heating system in the home.None
FireplaceWhether the home has a fireplace, and what kind.Yes
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Patio · 216 ft²

Transaction History(2)

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
Pier Elementary SchoolB-
Elementary · Grades PK–5 · 0.3 mi
M
Theisen Middle SchoolB-
Middle · Grades 6–8 · 0.6 mi
H
Fond Du Lac High SchoolC
High · Grades 9–12 · 2.7 mi

District: Fond Du Lac School District

Neighborhood · ZIP 54935These 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.112
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.78
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.22

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.13%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.41,617
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1,747 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$61,663
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$73,827
Average tempThe average temperature here across a full year.46°F
Annual precipHow much rain and melted snow falls here in a typical year.31 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.54%

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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

171 20th 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.

  • Worth more than 72% of homes in Fond Du Lac 54935
  • Costs more per square foot than 96% of homes in Fond Du Lac 54935
  • Smaller than 84% of homes in Fond du Lac County
  • Has a bigger lot than 66% of homes in Fond Du Lac 54935
  • Newer than 73% of homes in Fond Du Lac 54935

What homes are worth in Fond Du Lac 54935

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

This home
$99K$557K

This home is worth more than 72% of homes in Fond Du Lac 54935.

How it measures up in Fond Du Lac 54935

The dot is this home. The mark in the middle is the typical home in Fond Du Lac 54935.

Estimated value$301,073
CheaperTypical $226,553Pricier

Pricier than 72% of homes nearby

Price per ft²$279
CheaperTypical $173Pricier

Pricier than 96% of homes nearby

Living area1,080 ft²
SmallerTypical 1,404 ft²Bigger

Bigger than 18% of homes nearby

Lot size0.24 ac
SmallerTypical 0.19 acBigger

Bigger than 66% of homes nearby

Year built1974
OlderTypical 1951Newer

Newer than 73% of homes nearby

How 171 20th St ranks against every home in each area.
MeasureThis homeFond Du Lac 54935Fond du Lac County
Estimated valuepricier than$301,07372% of homes57% of homes
Price per ft²pricier than$27996% of homes95% of homes
Living areabigger than1,080 ft²18% of homes16% of homes
Lot sizebigger than0.24 ac66% of homes36% of homes
Year builtnewer than197473% of homes69% of homes

About 171 20th St

How much is 171 20th St, Fond Du Lac, WI worth?

The TopHap Estimate for 171 20th St, Fond Du Lac, WI is $301,073 as of Sep 24, 2026. The likely range is $278,743 to $323,403. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 171 20th St, Fond Du Lac, WI last sell?

171 20th St, Fond Du Lac, WI last sold on Sep 30, 2024 for $260,000, according to the county's recorded deed.

How big is 171 20th St, Fond Du Lac, WI?

171 20th St, Fond Du Lac, WI has 3 bedrooms, 2 bathrooms, 1,080 square feet of living space and a 0.24-acre lot.

When was 171 20th St, Fond Du Lac, WI built?

171 20th St, Fond Du Lac, WI was built in 1974, making it 52 years old.

What schools serve 171 20th St, Fond Du Lac, WI?

171 20th St, Fond Du Lac, WI is assigned to Pier Elementary School (elementary), rated B-; Theisen Middle School (middle), rated B-; Fond Du Lac High School (high), rated C. All sit in Fond Du Lac School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 171 20th St, Fond Du Lac, WI compare to other homes in Fond Du Lac 54935?

Among the 13,798 homes in Fond Du Lac 54935, it is worth more than 72% of them ($301,073 against a typical $226,553), its price per square foot is higher than 96% of them ($279 against a typical $173), it is bigger than 18% of them (1,080 ft² against a typical 1,404 ft²), its lot is bigger than 66% of them (0.24 ac against a typical 0.19 ac) and it is newer than 73% of them (1974 against a typical 1951). Measured against all of Fond du Lac County, it is worth more than 57% 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 171 20th St, Fond Du Lac, WI?

The 2025 property tax bill for 171 20th St, Fond Du Lac, WI was $4,377. The county assessed it at $268,000.

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