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Single Family ResidentialResidential
$182,563
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 81How 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

309 S MAIN ST

COLBY, WI 54421
0
Baths
0.28 ac
Lot SizeThe size of the land the home sits on, from county records.

Valuation

$183K
$148K low$217K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,374 (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.$164,600 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$12,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$152,600
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$164,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$172,190

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residential
CountyMarathon
Lot (acres)The size of the land the home sits on, from county records.0.28
HeatingThe type of heating system in the home.None

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

E
Colby Elementary SchoolD
Elementary · Grades KG–5 · 0.9 mi
M
Colby Middle SchoolD
Middle · Grades 6–8 · 0.9 mi
H
Colby High SchoolD
High · Grades 9–12 · 1.0 mi

District: Colby School District

Neighborhood · ZIP 54421These 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.112
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.81
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.7

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.9.6%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.14%
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.3,795
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.55 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$63,103
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$76,126
Average tempThe average temperature here across a full year.42°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

309 S Main 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 74% of homes in Marathon County
  • Has a smaller lot than 76% of homes in Colby 54421

What homes are worth in Colby 54421

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

This home
$41K$532K

This home is worth more than 39% of homes in Colby 54421.

How it measures up in Colby 54421

The dot is this home. The mark in the middle is the typical home in Colby 54421.

Estimated value$182,563
CheaperTypical $210,926Pricier

Pricier than 39% of homes nearby

Lot size0.28 ac
SmallerTypical 0.49 acBigger

Bigger than 24% of homes nearby

How 309 S Main St ranks against every home in each area.
MeasureThis homeColby 54421Marathon County
Estimated valuepricier than$182,56339% of homes26% of homes
Lot sizebigger than0.28 ac24% of homes26% of homes

About 309 S Main St

How much is 309 S Main St, Colby, WI worth?

The TopHap Estimate for 309 S Main St, Colby, WI is $182,563 as of Sep 24, 2026. The likely range is $148,017 to $217,109. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

What schools serve 309 S Main St, Colby, WI?

309 S Main St, Colby, WI is assigned to Colby Elementary School (elementary), rated D; Colby Middle School (middle), rated D; Colby High School (high), rated D. All sit in Colby School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 309 S Main St, Colby, WI compare to other homes in Colby 54421?

Among the 1,009 homes in Colby 54421, it is worth more than 39% of them ($182,563 against a typical $210,926) and its lot is bigger than 24% of them (0.28 ac against a typical 0.49 ac). Measured against all of Marathon County, it is worth more than 26% 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 309 S Main St, Colby, WI?

The 2025 property tax bill for 309 S Main St, Colby, WI was $2,374. The county assessed it at $164,600.

More homes on S Main St

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More homes in Colby 54421

Assigned schools

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