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Duplex (2 Units, Any Combination)Residential
Last sold for $255,000 on Feb 2, 2024

1639 KNAPP ST

OSHKOSH, WI 54902
6
Beds
2
Baths
3,709 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.
3.69 ac
Lot SizeThe size of the land the home sits on, from county records.
1883
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
13
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$255,000 · Feb 2, 2024

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,270 (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.$290,200 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$90,300
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$199,900
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$290,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$297,119

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.154 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.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.3.69
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.

E
Shapiro STEM AcademyB
Elementary · Grades EE–5 · 0.1 mi
M
South Park Middle SchoolC+
Middle · Grades 6–8 · 0.4 mi
H
Oshkosh West High SchoolB
High · Grades 9–12 · 1.5 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

1639 Knapp 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 largest homes in Oshkosh 54902
  • Has a bigger lot than 97% of homes in Oshkosh 54902
  • Older than 97% of homes in Winnebago County

How it measures up in Oshkosh 54902

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

Living area3,709 ft²
SmallerTypical 1,363 ft²Bigger

Bigger than almost all homes nearby

Lot size3.69 ac
SmallerTypical 0.19 acBigger

Bigger than 97% of homes nearby

Year built1883
OlderTypical 1948Newer

Newer than 4% of homes nearby

How 1639 Knapp St ranks against every home in each area.
MeasureThis homeOshkosh 54902Winnebago County
Living areabigger than3,709 ft²almost all homes98% of homes
Lot sizebigger than3.69 ac97% of homes94% of homes
Year builtnewer than18834% of homes3% of homes

About 1639 Knapp St

When did 1639 Knapp St, Oshkosh, WI last sell?

1639 Knapp St, Oshkosh, WI last sold on Feb 2, 2024 for $255,000, according to the county's recorded deed.

How big is 1639 Knapp St, Oshkosh, WI?

1639 Knapp St, Oshkosh, WI has 6 bedrooms, 2 bathrooms, 3,709 square feet of living space and a 3.69-acre lot.

When was 1639 Knapp St, Oshkosh, WI built?

1639 Knapp St, Oshkosh, WI was built in 1883, making it 143 years old. It is a duplex single home. The building has 2 stories.

What schools serve 1639 Knapp St, Oshkosh, WI?

1639 Knapp St, Oshkosh, WI is assigned to Shapiro STEM Academy (elementary), rated B; South Park Middle School (middle), rated C+; Oshkosh West 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 1639 Knapp St, Oshkosh, WI compare to other homes in Oshkosh 54902?

Among the 8,426 homes in Oshkosh 54902, it is bigger than almost all of them (3,709 ft² against a typical 1,363 ft²), its lot is bigger than 97% of them (3.69 ac against a typical 0.19 ac) and it is newer than 4% of them (1883 against a typical 1948). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 1639 Knapp St, Oshkosh, WI?

The 2025 property tax bill for 1639 Knapp St, Oshkosh, WI was $5,270. The county assessed it at $290,200.

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