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Duplex (2 Units, Any Combination)Residential
$223,468$79 / 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 85How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jun 23, 2026

3706 21ST ST

RACINE, WI 53405
0
Baths
2,819 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.
0.15 ac
Lot SizeThe size of the land the home sits on, from county records.
1939
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$223K
$190K low$257K high
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$173,468
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$138,774
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.22%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$50,000
CANYON WREN LLC · E · recorded Sep 10, 2009

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,019 (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.$202,900 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$17,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$185,400
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$202,900
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$225,928

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.29
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
1
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
47
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
65
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
33
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
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.Duplex (2 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Two Family
CountyRacine
Lot (acres)The size of the land the home sits on, from county records.0.15
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
HeatingThe type of heating system in the home.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

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

E
S.C. Johnson Elementary SchoolD
Elementary · Grades KG–5 · 0.4 mi
M
Mitchell SchoolF
Middle · Grades KG–8 · 0.7 mi
H
Park High SchoolC+
High · Grades 9–12 · 1.3 mi

District: Racine School District

Neighborhood · ZIP 53405These 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.98
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.85
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.30

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.21%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.9%
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.25,331
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,749 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$66,464
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$83,982
Average tempThe average temperature here across a full year.48°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%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Absentee owner
Company ownedWhether the owner is a company or trust rather than a person.No

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

3706 21st 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 73% of homes in Racine County
  • Among the lowest price per square foot in Humble Park
  • Among the largest homes in Humble Park
  • Has a bigger lot than 81% of homes in Humble Park
  • Older than 86% of homes in Humble Park

What homes are worth in Racine 53405

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

This home
$125K$531K

This home is worth more than 48% of homes in Racine 53405.

How it measures up in Racine 53405

The dot is this home. The mark in the middle is the typical home in Racine 53405.

Estimated value$223,468
CheaperTypical $227,040Pricier

Pricier than 48% of homes nearby

Price per ft²$79
CheaperTypical $186Pricier

Cheaper than almost all homes nearby

Living area2,819 ft²
SmallerTypical 1,275 ft²Bigger

Bigger than 98% of homes nearby

Lot size0.15 ac
SmallerTypical 0.14 acBigger

Bigger than 57% of homes nearby

Year built1939
OlderTypical 1949Newer

Newer than 39% of homes nearby

How 3706 21st St ranks against every home in each area.
MeasureThis homeHumble ParkRacine 53405Racine County
Estimated valuepricier than$223,46861% of homes48% of homes27% of homes
Price per ft²pricier than$79almost no homesalmost no homes5% of homes
Living areabigger than2,819 ft²almost all homes98% of homes96% of homes
Lot sizebigger than0.15 ac81% of homes57% of homes28% of homes
Year builtnewer than193914% of homes39% of homes28% of homes

About 3706 21st St

How much is 3706 21st St, Racine, WI worth?

The TopHap Estimate for 3706 21st St, Racine, WI is $223,468 as of Jun 23, 2026. The likely range is $189,947 to $256,988. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3706 21st St, Racine, WI last sell?

3706 21st St, Racine, WI last sold on Oct 11, 1999, according to the county's recorded deed.

How big is 3706 21st St, Racine, WI?

3706 21st St, Racine, WI has 2,819 square feet of living space and a 0.15-acre lot.

When was 3706 21st St, Racine, WI built?

3706 21st St, Racine, WI was built in 1939, making it 87 years old. It is a two family home. The building has 2 stories.

What schools serve 3706 21st St, Racine, WI?

3706 21st St, Racine, WI is assigned to S.C. Johnson Elementary School (elementary), rated D; Mitchell School (middle), rated F; Park High School (high), rated C+. All sit in Racine School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3706 21st St, Racine, WI compare to other homes in Racine 53405?

Among the 9,114 homes in Racine 53405, it is worth more than 48% of them ($223,468 against a typical $227,040), its price per square foot is higher than almost none of them ($79 against a typical $186), it is bigger than 98% of them (2,819 ft² against a typical 1,275 ft²), its lot is bigger than 57% of them (0.15 ac against a typical 0.14 ac) and it is newer than 39% of them (1939 against a typical 1949). Measured against all of Racine County, it is worth more than 27% 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 3706 21st St, Racine, WI?

The 2024 property tax bill for 3706 21st St, Racine, WI was $5,019. The county assessed it at $202,900.

More homes on 21st St

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Assigned schools

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