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Single Family ResidenceResidential
$166,494$122 / 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 75How 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

421 S CLAY ST

GREEN BAY, WI 54301
3
Beds
2
Baths
1,368 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.
0.18 ac
Lot SizeThe size of the land the home sits on, from county records.
1871
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$166K
$124K low$209K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,555 (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.$125,800 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$19,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$106,400
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$125,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$171,700

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyBrown
Lot (acres)The size of the land the home sits on, from county records.0.18
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.None
CoolingThe type of cooling or air conditioning 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.

M
Washington Middle SchoolF
Middle · Grades 6–8 · 0.4 mi
E
Howe Elementary Community SchoolD-
Elementary · Grades PK–5 · 0.5 mi
H
East High SchoolB
High · Grades 9–12 · 0.6 mi

District: Green Bay Area School District

Neighborhood · ZIP 54301These 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.106
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.70
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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.22%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.1%
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.24,608
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,307 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$68,188
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$88,248
Average tempThe average temperature here across a full year.44°F
Annual precipHow much rain and melted snow falls here in a typical year.30 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

421 S Clay 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 97% of homes in Brown County
  • Costs less per square foot than 98% of homes in Brown County
  • Bigger than 84% of homes in Green Bay 54301
  • Has a smaller lot than 85% of homes in Brown County
  • Among the oldest homes in Brown County

What homes are worth in Green Bay 54301

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

This home
$136K$610K

This home is worth more than 7% of homes in Green Bay 54301.

How it measures up in Green Bay 54301

The dot is this home. The mark in the middle is the typical home in Green Bay 54301.

Estimated value$166,494
CheaperTypical $274,123Pricier

Pricier than 7% of homes nearby

Price per ft²$122
CheaperTypical $241Pricier

Pricier than 4% of homes nearby

Living area1,368 ft²
SmallerTypical 998 ft²Bigger

Bigger than 84% of homes nearby

Lot size0.18 ac
SmallerTypical 0.23 acBigger

Bigger than 25% of homes nearby

Year built1871
OlderTypical 1923Newer

Older than almost all homes nearby

How 421 S Clay St ranks against every home in each area.
MeasureThis homeNavarinoGreen Bay 54301Brown County
Estimated valuepricier than$166,49424% of homes7% of homes3% of homes
Price per ft²pricier than$1227% of homes4% of homes2% of homes
Living areabigger than1,368 ft²81% of homes84% of homes61% of homes
Lot sizebigger than0.18 ac55% of homes25% of homes15% of homes
Year builtnewer than18712% of homesalmost no homesalmost no homes

About 421 S Clay St

How much is 421 S Clay St, Green Bay, WI worth?

The TopHap Estimate for 421 S Clay St, Green Bay, WI is $166,494 as of Aug 30, 2026. The likely range is $124,136 to $208,852. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is 421 S Clay St, Green Bay, WI?

421 S Clay St, Green Bay, WI has 3 bedrooms, 2 bathrooms, 1,368 square feet of living space and a 0.18-acre lot.

When was 421 S Clay St, Green Bay, WI built?

421 S Clay St, Green Bay, WI was built in 1871, making it 155 years old. The building has 2 stories.

What schools serve 421 S Clay St, Green Bay, WI?

421 S Clay St, Green Bay, WI is assigned to Washington Middle School (middle), rated F; Howe Elementary Community School (elementary), rated D-; East High School (high), rated B. All sit in Green Bay Area School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 421 S Clay St, Green Bay, WI compare to other homes in Green Bay 54301?

Among the 8,308 homes in Green Bay 54301, it is worth more than 7% of them ($166,494 against a typical $274,123), its price per square foot is higher than 4% of them ($122 against a typical $241), it is bigger than 84% of them (1,368 ft² against a typical 998 ft²), its lot is bigger than 25% of them (0.18 ac against a typical 0.23 ac) and it is newer than almost none of them (1871 against a typical 1923). Measured against all of Brown County, it is worth more than 3% 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 421 S Clay St, Green Bay, WI?

The 2025 property tax bill for 421 S Clay St, Green Bay, WI was $2,555. The county assessed it at $125,800.

More homes on S Clay St

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Assigned schools

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