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Single Family ResidenceResidential
$143,072$271 / 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 Oct 21, 2026
Last sold for $50,000 on Oct 16, 2019

331 W 18TH AVE

OSHKOSH, WI 54902
1
Beds
1
Baths
528 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.
0.21 ac
Lot SizeThe size of the land the home sits on, from county records.
1929
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
3
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$143K
$132K low$154K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$50,000 · Oct 16, 2019

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,917 (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.$119,100 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$27,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$91,400
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$119,100
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$121,939

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyWinnebago
Lot (acres)The size of the land the home sits on, from county records.0.21
HeatingThe type of heating system in the home.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached

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.

M
South Park Middle SchoolC-
Middle · Grades 6–8 · 0.6 mi
E
Jefferson Elementary SchoolD
Elementary · Grades KG–5 · 0.7 mi
H
Oshkosh West High SchoolA-
High · Grades 9–12 · 2.1 mi

District: Oshkosh Area School District

Neighborhood · ZIP 54902These 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.122
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.71
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.19%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.12%
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.22,899
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.366 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$67,939
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$76,774
Average tempThe average temperature here across a full year.45°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

331 W 18th Ave 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 96% of homes in Oshkosh 54902
  • Costs more per square foot than 96% of homes in Oshkosh 54902
  • Among the smallest homes in Oshkosh 54902
  • Older than 67% of homes in Winnebago County

What homes are worth in Oshkosh 54902

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

This home
$129K$664K

This home is worth more than 4% of homes in Oshkosh 54902.

How it measures up in Oshkosh 54902

The dot is this home. The mark in the middle is the typical home in Oshkosh 54902.

Estimated value$143,072
CheaperTypical $239,439Pricier

Pricier than 4% of homes nearby

Price per ft²$271
CheaperTypical $179Pricier

Pricier than 96% of homes nearby

Living area528 ft²
SmallerTypical 1,364 ft²Bigger

Smaller than almost all homes nearby

Lot size0.21 ac
SmallerTypical 0.19 acBigger

Bigger than 56% of homes nearby

Year built1929
OlderTypical 1946Newer

Newer than 44% of homes nearby

How 331 W 18th Ave ranks against every home in each area.
MeasureThis homeOshkosh 54902Winnebago County
Estimated valuepricier than$143,0724% of homes4% of homes
Price per ft²pricier than$27196% of homes93% of homes
Living areabigger than528 ft²almost no homesalmost no homes
Lot sizebigger than0.21 ac56% of homes38% of homes
Year builtnewer than192944% of homes33% of homes

About 331 W 18th Ave

How much is 331 W 18th Ave, Oshkosh, WI worth?

The TopHap Estimate for 331 W 18th Ave, Oshkosh, WI is $143,072 as of Oct 21, 2026. The likely range is $132,369 to $153,775. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 331 W 18th Ave, Oshkosh, WI last sell?

331 W 18th Ave, Oshkosh, WI last sold on Oct 16, 2019 for $50,000, according to the county's recorded deed.

How big is 331 W 18th Ave, Oshkosh, WI?

331 W 18th Ave, Oshkosh, WI has 1 bedrooms, 1 bathrooms, 528 square feet of living space and a 0.21-acre lot.

When was 331 W 18th Ave, Oshkosh, WI built?

331 W 18th Ave, Oshkosh, WI was built in 1929, making it 97 years old. The building has 1 story.

What schools serve 331 W 18th Ave, Oshkosh, WI?

331 W 18th Ave, Oshkosh, WI is assigned to South Park Middle School (middle), rated C-; Jefferson Elementary School (elementary), rated D; Oshkosh West High School (high), rated A-. All sit in Oshkosh Area School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 331 W 18th Ave, Oshkosh, WI compare to other homes in Oshkosh 54902?

Among the 8,720 homes in Oshkosh 54902, it is worth more than 4% of them ($143,072 against a typical $239,439), its price per square foot is higher than 96% of them ($271 against a typical $179), it is bigger than almost none of them (528 ft² against a typical 1,364 ft²), its lot is bigger than 56% of them (0.21 ac against a typical 0.19 ac) and it is newer than 44% of them (1929 against a typical 1946). Measured against all of Winnebago County, it is worth more than 4% 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 331 W 18th Ave, Oshkosh, WI?

The 2025 property tax bill for 331 W 18th Ave, Oshkosh, WI was $1,917. The county assessed it at $119,100.

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