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Single Family ResidentialResidential
$230,915
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 83How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026

503 WILLOW ST

MOSINEE, WI 54455
3
Beds
1
Baths
0.29 ac
Lot SizeThe size of the land the home sits on, from county records.
1
StoriesHow many floors the home has above ground.

Valuation

$231K
$191K low$270K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,680 (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.$143,600 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$25,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$118,600
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$143,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$204,463

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.6 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
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 Residential
StyleThe architectural style of the home, such as ranch or colonial.Ranch
CountyMarathon
Lot (acres)The size of the land the home sits on, from county records.0.29
HeatingThe type of heating system in the home.None

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
Mosinee Elementary SchoolC
Elementary · Grades PK–3 · 1.0 mi
H
Mosinee High SchoolA
High · Grades 9–12 · 1.0 mi
M
Mosinee Middle SchoolB
Middle · Grades 4–8 · 1.0 mi

District: Mosinee School District

Neighborhood · ZIP 54455These 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.85
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.77
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.11

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.24%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.9%
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.19,404
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.79 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$94,086
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$109,347
Average tempThe average temperature here across a full year.43°F
Annual precipHow much rain and melted snow falls here in a typical year.33 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

503 Willow 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.

  • Worth less than 68% of homes in Mosinee 54455
  • Has a smaller lot than 89% of homes in Mosinee 54455

What homes are worth in Mosinee 54455

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

This home
$68K$820K

This home is worth more than 32% of homes in Mosinee 54455.

How it measures up in Mosinee 54455

The dot is this home. The mark in the middle is the typical home in Mosinee 54455.

Estimated value$230,915
CheaperTypical $281,950Pricier

Pricier than 32% of homes nearby

Lot size0.29 ac
SmallerTypical 0.78 acBigger

Bigger than 11% of homes nearby

How 503 Willow St ranks against every home in each area.
MeasureThis homeMosinee 54455Marathon County
Estimated valuepricier than$230,91532% of homes45% of homes
Lot sizebigger than0.29 ac11% of homes27% of homes

About 503 Willow St

How much is 503 Willow St, Mosinee, WI worth?

The TopHap Estimate for 503 Willow St, Mosinee, WI is $230,915 as of Aug 30, 2026. The likely range is $191,375 to $270,455. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is 503 Willow St, Mosinee, WI?

503 Willow St, Mosinee, WI has 3 bedrooms, 1 bathrooms and a 0.29-acre lot.

What schools serve 503 Willow St, Mosinee, WI?

503 Willow St, Mosinee, WI is assigned to Mosinee Elementary School (elementary), rated C; Mosinee High School (high), rated A; Mosinee Middle School (middle), rated B. All sit in Mosinee School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 503 Willow St, Mosinee, WI compare to other homes in Mosinee 54455?

Among the 8,105 homes in Mosinee 54455, it is worth more than 32% of them ($230,915 against a typical $281,950) and its lot is bigger than 11% of them (0.29 ac against a typical 0.78 ac). Measured against all of Marathon County, it is worth more than 45% 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 503 Willow St, Mosinee, WI?

The 2025 property tax bill for 503 Willow St, Mosinee, WI was $2,680. The county assessed it at $143,600.

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Assigned schools

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