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Duplex (2 Units, Any Combination)Residential

121 PROSPECT AVE

OSHKOSH, WI 54901
3
Beds
2
Baths
1,862 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.
0.15 ac
Lot SizeThe size of the land the home sits on, from county records.
1920
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,386 (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.$131,400 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$23,100
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$108,300
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$131,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$134,532

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Duplex (2 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Duplex Single
CountyWinnebago
Lot (acres)The size of the land the home sits on, from county records.0.15
HeatingThe type of heating system in the home.Yes

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

M
Merrill Middle SchoolC-
Middle · Grades 6–8 · 0.2 mi
E
Merrill Elementary SchoolD-
Elementary · Grades KG–5 · 0.2 mi
H
Oshkosh North High SchoolB-
High · Grades 9–12 · 1.2 mi

District: Oshkosh Area School District

Neighborhood · ZIP 54901These 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.118
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.76
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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.16%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.15%
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.38,222
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.592 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$63,941
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$74,529
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

121 Prospect 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.

  • Bigger than 76% of homes in Winnebago County
  • Has a smaller lot than 86% of homes in Winnebago County
  • Older than 73% of homes in Winnebago County

How it measures up in Oshkosh 54901

The dot is this home. The mark in the middle is the typical home in Oshkosh 54901.

Living area1,862 ft²
SmallerTypical 1,484 ft²Bigger

Bigger than 72% of homes nearby

Lot size0.15 ac
SmallerTypical 0.17 acBigger

Bigger than 33% of homes nearby

Year built1920
OlderTypical 1925Newer

Newer than 47% of homes nearby

How 121 Prospect Ave ranks against every home in each area.
MeasureThis homeOshkosh 54901Winnebago County
Living areabigger than1,862 ft²72% of homes76% of homes
Lot sizebigger than0.15 ac33% of homes14% of homes
Year builtnewer than192047% of homes27% of homes

About 121 Prospect Ave

How big is 121 Prospect Ave, Oshkosh, WI?

121 Prospect Ave, Oshkosh, WI has 3 bedrooms, 2 bathrooms, 1,862 square feet of living space and a 0.15-acre lot.

When was 121 Prospect Ave, Oshkosh, WI built?

121 Prospect Ave, Oshkosh, WI was built in 1920, making it 106 years old. It is a duplex single home. The building has 2 stories.

What schools serve 121 Prospect Ave, Oshkosh, WI?

121 Prospect Ave, Oshkosh, WI is assigned to Merrill Middle School (middle), rated C-; Merrill Elementary School (elementary), rated D-; Oshkosh North High School (high), rated B-. All sit in Oshkosh Area School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 121 Prospect Ave, Oshkosh, WI compare to other homes in Oshkosh 54901?

Among the 10,738 homes in Oshkosh 54901, it is bigger than 72% of them (1,862 ft² against a typical 1,484 ft²), its lot is bigger than 33% of them (0.15 ac against a typical 0.17 ac) and it is newer than 47% of them (1920 against a typical 1925). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 121 Prospect Ave, Oshkosh, WI?

The 2025 property tax bill for 121 Prospect Ave, Oshkosh, WI was $2,386. The county assessed it at $131,400.

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Assigned schools

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