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Single Family ResidenceResidential
$202,207$174 / 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 91How 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 $78,000 on Mar 31, 2000

645 W 4TH AVE

OSHKOSH, WI 54902
3
Beds
1
Baths
1,165 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.
0.44 ac
Lot SizeThe size of the land the home sits on, from county records.
1874
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$202K
$183K low$221K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$78,000 · Mar 31, 2000

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,602 (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.$156,800 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$40,800
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$116,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$156,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$160,538

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.8 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
CountyWinnebago
Lot (acres)The size of the land the home sits on, from county records.0.44
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

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

E
Franklin Elementary SchoolB-
Elementary · Grades KG–5 · 0.8 mi
M
Perry Tipler Middle SchoolB
Middle · Grades 6–8 · 1.0 mi
H
Oshkosh West High SchoolB
High · Grades 9–12 · 1.1 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

645 W 4th 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 82% of homes in Winnebago County
  • Smaller than 72% of homes in Winnebago County
  • Has a bigger lot than 82% of homes in Oshkosh 54902
  • Among the oldest 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
$138K$663K

This home is worth more than 21% 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$202,207
CheaperTypical $247,105Pricier

Pricier than 21% of homes nearby

Price per ft²$174
CheaperTypical $186Pricier

Pricier than 41% of homes nearby

Living area1,165 ft²
SmallerTypical 1,368 ft²Bigger

Bigger than 31% of homes nearby

Lot size0.44 ac
SmallerTypical 0.19 acBigger

Bigger than 82% of homes nearby

Year built1874
OlderTypical 1948Newer

Newer than 3% of homes nearby

How 645 W 4th Ave ranks against every home in each area.
MeasureThis homeOshkosh 54902Winnebago County
Estimated valuepricier than$202,20721% of homes18% of homes
Price per ft²pricier than$17441% of homes36% of homes
Living areabigger than1,165 ft²31% of homes28% of homes
Lot sizebigger than0.44 ac82% of homes74% of homes
Year builtnewer than18743% of homesalmost no homes

About 645 W 4th Ave

How much is 645 W 4th Ave, Oshkosh, WI worth?

The TopHap Estimate for 645 W 4th Ave, Oshkosh, WI is $202,207 as of Sep 24, 2026. The likely range is $183,135 to $221,279. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 645 W 4th Ave, Oshkosh, WI last sell?

645 W 4th Ave, Oshkosh, WI last sold on Mar 31, 2000 for $78,000, according to the county's recorded deed.

How big is 645 W 4th Ave, Oshkosh, WI?

645 W 4th Ave, Oshkosh, WI has 3 bedrooms, 1 bathrooms, 1,165 square feet of living space and a 0.44-acre lot.

When was 645 W 4th Ave, Oshkosh, WI built?

645 W 4th Ave, Oshkosh, WI was built in 1874, making it 152 years old. The building has 1 story.

What schools serve 645 W 4th Ave, Oshkosh, WI?

645 W 4th Ave, Oshkosh, WI is assigned to Franklin Elementary School (elementary), rated B-; Perry Tipler Middle School (middle), rated B; 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 645 W 4th Ave, Oshkosh, WI compare to other homes in Oshkosh 54902?

Among the 8,476 homes in Oshkosh 54902, it is worth more than 21% of them ($202,207 against a typical $247,105), its price per square foot is higher than 41% of them ($174 against a typical $186), it is bigger than 31% of them (1,165 ft² against a typical 1,368 ft²), its lot is bigger than 82% of them (0.44 ac against a typical 0.19 ac) and it is newer than 3% of them (1874 against a typical 1948). Measured against all of Winnebago County, it is worth more than 18% 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 645 W 4th Ave, Oshkosh, WI?

The 2025 property tax bill for 645 W 4th Ave, Oshkosh, WI was $2,602. The county assessed it at $156,800.

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