Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$211,856$176 / 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 93How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026
Last sold for $108,500 on Jan 30, 2020

4509 21ST ST

RACINE, WI 53405
3
Beds
1
Baths
1,206 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.
1948
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$212K
$197K low$227K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$108,500 · Jan 30, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,069 (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.$125,300 (2024)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$19,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$105,800
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$125,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$139,521

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.Single Family Residence
CountyRacine
Lot (acres)The size of the land the home sits on, from county records.0.18
HeatingThe type of heating system in the home.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(3)

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
S.C. Johnson Elementary SchoolF
Elementary · Grades KG–5 · 0.3 mi
M
Mitchell SchoolF
Middle · Grades KG–8 · 1.2 mi
H
Park High SchoolF
High · Grades 9–12 · 1.7 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%

Owner Tools

Do you own this home?
Claim this home

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

4509 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 79% of homes in Racine County
  • Costs less per square foot than 90% of homes in Garden City
  • Bigger than 68% of homes in Garden City
  • Has a bigger lot than 74% of homes in Garden City
  • Older than 78% of homes in Garden City

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
$124K$557K

This home is worth more than 37% 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$211,856
CheaperTypical $233,057Pricier

Pricier than 37% of homes nearby

Price per ft²$176
CheaperTypical $192Pricier

Pricier than 38% of homes nearby

Living area1,206 ft²
SmallerTypical 1,277 ft²Bigger

Bigger than 44% of homes nearby

Lot size0.18 ac
SmallerTypical 0.14 acBigger

Bigger than 68% of homes nearby

Year built1948
OlderTypical 1949Newer

Newer than 49% of homes nearby

How 4509 21st St ranks against every home in each area.
MeasureThis homeGarden CityRacine 53405Racine County
Estimated valuepricier than$211,85633% of homes37% of homes21% of homes
Price per ft²pricier than$17610% of homes38% of homes33% of homes
Living areabigger than1,206 ft²68% of homes44% of homes33% of homes
Lot sizebigger than0.18 ac74% of homes68% of homes35% of homes
Year builtnewer than194822% of homes49% of homes33% of homes

About 4509 21st St

How much is 4509 21st St, Racine, WI worth?

The TopHap Estimate for 4509 21st St, Racine, WI is $211,856 as of Oct 21, 2026. The likely range is $196,834 to $226,878. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4509 21st St, Racine, WI last sell?

4509 21st St, Racine, WI last sold on Jan 30, 2020 for $108,500, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 4509 21st St, Racine, WI?

4509 21st St, Racine, WI has 3 bedrooms, 1 bathrooms, 1,206 square feet of living space and a 0.18-acre lot.

When was 4509 21st St, Racine, WI built?

4509 21st St, Racine, WI was built in 1948, making it 78 years old. The building has 2 stories.

What schools serve 4509 21st St, Racine, WI?

4509 21st St, Racine, WI is assigned to S.C. Johnson Elementary School (elementary), rated F; Mitchell School (middle), rated F; Park High School (high), rated F. All sit in Racine School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4509 21st St, Racine, WI compare to other homes in Racine 53405?

Among the 9,099 homes in Racine 53405, it is worth more than 37% of them ($211,856 against a typical $233,057), its price per square foot is higher than 38% of them ($176 against a typical $192), it is bigger than 44% of them (1,206 ft² against a typical 1,277 ft²), its lot is bigger than 68% of them (0.18 ac against a typical 0.14 ac) and it is newer than 49% of them (1948 against a typical 1949). Measured against all of Racine County, it is worth more than 21% 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 4509 21st St, Racine, WI?

The 2024 property tax bill for 4509 21st St, Racine, WI was $3,069. The county assessed it at $125,300.

More homes on 21st St

Closest homes

More homes in Racine 53405

Assigned schools

Explore the area

See this home in context

Open 4509 21st St on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map