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Single Family ResidenceResidential
$111,523
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 65How 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

100 MADISON ST

ONTARIO, WI 54651
0
Baths

Valuation

$112K
$73K low$150K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,099 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$73,500 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$9,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$64,500
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$73,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$76,900

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.91 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
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
CountyVernon

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
Norwalk-Ontario-Wilton Elementary SchoolB-
Elementary · Grades PK–6 · 2.4 mi
M
Brookwood High SchoolC+
Middle · Grades 7–12 · 2.4 mi

District: Norwalk-Ontario-Wilton School District

Neighborhood · ZIP 54651These 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.130
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 100.18

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.86%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.14%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.19%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.8%
PopulationHow many people live in this area.1,516
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.24 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$67,881
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$79,408
Average tempThe average temperature here across a full year.45°F
Annual precipHow much rain and melted snow falls here in a typical year.35 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

100 Madison 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 88% of homes in Vernon County

What homes are worth in Ontario 54651

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

This home
$45K$562K

This home is worth more than 19% of homes in Ontario 54651.

How it measures up in Ontario 54651

The dot is this home. The mark in the middle is the typical home in Ontario 54651.

Estimated value$111,523
CheaperTypical $186,929Pricier

Pricier than 19% of homes nearby

How 100 Madison St ranks against every home in each area.
MeasureThis homeOntario 54651Vernon County
Estimated valuepricier than$111,52319% of homes12% of homes

About 100 Madison St

How much is 100 Madison St, Ontario, WI worth?

The TopHap Estimate for 100 Madison St, Ontario, WI is $111,523 as of Aug 30, 2026. The likely range is $72,842 to $150,204. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

What schools serve 100 Madison St, Ontario, WI?

100 Madison St, Ontario, WI is assigned to Norwalk-Ontario-Wilton Elementary School (elementary), rated B-; Brookwood High School (middle), rated C+. All sit in Norwalk-Ontario-Wilton School District. Attendance boundaries change — confirm with the district before relying on an assignment.

What are the property taxes on 100 Madison St, Ontario, WI?

The 2024 property tax bill for 100 Madison St, Ontario, WI was $1,099. The county assessed it at $73,500.

More homes on Madison St

Closest homes

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Assigned schools

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