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Single Family ResidenceResidential
$334,082$230 / 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 95How 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

20 CASTLE CT

OSHKOSH, WI 54902
3
Beds
2
Baths
1,450 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.
0.51 ac
Lot SizeThe size of the land the home sits on, from county records.
2006
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

$334K
$318K low$351K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,128 (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.$295,900 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$41,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$254,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$295,900
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$302,955

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Ranch
CountyWinnebago
Lot (acres)The size of the land the home sits on, from county records.0.51
HeatingThe type of heating system in the home.Yes
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached

Foreclosure Filings(3)

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 · 2.2 mi
E
Lakeside Elementary SchoolC
Elementary · Grades KG–5 · 2.6 mi
H
Oshkosh West High SchoolA-
High · Grades 9–12 · 3.7 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

20 Castle Ct 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 82% of homes in Oshkosh 54902
  • Costs more per square foot than 83% of homes in Oshkosh 54902
  • Has a bigger lot than 85% of homes in Oshkosh 54902
  • Among the newest homes in Oshkosh 54902

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
$133K$672K

This home is worth more than 82% 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$334,082
CheaperTypical $240,545Pricier

Pricier than 82% of homes nearby

Price per ft²$230
CheaperTypical $179Pricier

Pricier than 83% of homes nearby

Living area1,450 ft²
SmallerTypical 1,364 ft²Bigger

Bigger than 57% of homes nearby

Lot size0.51 ac
SmallerTypical 0.19 acBigger

Bigger than 85% of homes nearby

Year built2006
OlderTypical 1946Newer

Newer than almost all homes nearby

How 20 Castle Ct ranks against every home in each area.
MeasureThis homeOshkosh 54902Winnebago County
Estimated valuepricier than$334,08282% of homes61% of homes
Price per ft²pricier than$23083% of homes79% of homes
Living areabigger than1,450 ft²57% of homes51% of homes
Lot sizebigger than0.51 ac85% of homes78% of homes
Year builtnewer than2006almost all homes96% of homes

About 20 Castle Ct

How much is 20 Castle Ct, Oshkosh, WI worth?

The TopHap Estimate for 20 Castle Ct, Oshkosh, WI is $334,082 as of Oct 21, 2026. The likely range is $317,507 to $350,657. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 20 Castle Ct, Oshkosh, WI last sell?

20 Castle Ct, Oshkosh, WI last sold on Apr 26, 2017, according to the county's recorded deed.

How big is 20 Castle Ct, Oshkosh, WI?

20 Castle Ct, Oshkosh, WI has 3 bedrooms, 2 bathrooms, 1,450 square feet of living space and a 0.51-acre lot.

When was 20 Castle Ct, Oshkosh, WI built?

20 Castle Ct, Oshkosh, WI was built in 2006, making it 20 years old. It is a ranch home. The building has 1 story.

What schools serve 20 Castle Ct, Oshkosh, WI?

20 Castle Ct, Oshkosh, WI is assigned to South Park Middle School (middle), rated C-; Lakeside Elementary School (elementary), rated C; 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 20 Castle Ct, Oshkosh, WI compare to other homes in Oshkosh 54902?

Among the 8,721 homes in Oshkosh 54902, it is worth more than 82% of them ($334,082 against a typical $240,545), its price per square foot is higher than 83% of them ($230 against a typical $179), it is bigger than 57% of them (1,450 ft² against a typical 1,364 ft²), its lot is bigger than 85% of them (0.51 ac against a typical 0.19 ac) and it is newer than almost all of them (2006 against a typical 1946). Measured against all of Winnebago County, it is worth more than 61% 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 20 Castle Ct, Oshkosh, WI?

The 2025 property tax bill for 20 Castle Ct, Oshkosh, WI was $5,128. The county assessed it at $295,900.

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