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Single Family ResidenceResidential
$235,716$200 / 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 95How 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

1521 S RIVER RD

JANESVILLE, WI 53546
3
Beds
1
Baths
1,176 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.
0.38 ac
Lot SizeThe size of the land the home sits on, from county records.
1957
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$236K
$225K low$247K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,000 (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.$180,900 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$24,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$156,500
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$180,900

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Ranch
CountyRock
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1958
Lot (acres)The size of the land the home sits on, from county records.0.38
HeatingThe type of heating system in the home.Yes
CoolingThe type of cooling or air conditioning in the home.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 240 ft²Patio · 240 ft²Porch · 192 ft²

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

E
Van Buren Elementary SchoolB+
Elementary · Grades KG–5 · 0.8 mi
M
Edison Middle SchoolC
Middle · Grades 6–8 · 1.0 mi
H
Parker High SchoolD+
High · Grades 9–12 · 1.9 mi

District: Janesville School District

Neighborhood · ZIP 53546These 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.102
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.88
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.32

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.18%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.9%
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.31,634
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.403 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$73,028
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$85,718
Average tempThe average temperature here across a full year.47°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

1521 S River Rd 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 77% of homes in Janesville 53546
  • Costs more per square foot than 65% of homes in Rock County
  • Smaller than 69% of homes in Janesville 53546
  • Has a bigger lot than 81% of homes in Janesville 53546
  • Older than 88% of homes in Janesville 53546

What homes are worth in Janesville 53546

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

This home
$132K$527K

This home is worth more than 23% of homes in Janesville 53546.

How it measures up in Janesville 53546

The dot is this home. The mark in the middle is the typical home in Janesville 53546.

Estimated value$235,716
CheaperTypical $292,342Pricier

Pricier than 23% of homes nearby

Price per ft²$200
CheaperTypical $208Pricier

Pricier than 43% of homes nearby

Living area1,176 ft²
SmallerTypical 1,368 ft²Bigger

Bigger than 31% of homes nearby

Lot size0.38 ac
SmallerTypical 0.25 acBigger

Bigger than 81% of homes nearby

Year built1957
OlderTypical 1986Newer

Newer than 12% of homes nearby

How 1521 S River Rd ranks against every home in each area.
MeasureThis homeJanesville 53546Rock County
Estimated valuepricier than$235,71623% of homes38% of homes
Price per ft²pricier than$20043% of homes65% of homes
Living areabigger than1,176 ft²31% of homes32% of homes
Lot sizebigger than0.38 ac81% of homes69% of homes
Year builtnewer than195712% of homes44% of homes

About 1521 S River Rd

How much is 1521 S River Rd, Janesville, WI worth?

The TopHap Estimate for 1521 S River Rd, Janesville, WI is $235,716 as of Aug 30, 2026. The likely range is $224,853 to $246,579. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is 1521 S River Rd, Janesville, WI?

1521 S River Rd, Janesville, WI has 3 bedrooms, 1 bathrooms, 1,176 square feet of living space and a 0.38-acre lot.

When was 1521 S River Rd, Janesville, WI built?

1521 S River Rd, Janesville, WI was built in 1957, making it 69 years old. It is a ranch home. The building has 1 story.

What schools serve 1521 S River Rd, Janesville, WI?

1521 S River Rd, Janesville, WI is assigned to Van Buren Elementary School (elementary), rated B+; Edison Middle School (middle), rated C; Parker High School (high), rated D+. All sit in Janesville School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 1521 S River Rd, Janesville, WI compare to other homes in Janesville 53546?

Among the 10,824 homes in Janesville 53546, it is worth more than 23% of them ($235,716 against a typical $292,342), its price per square foot is higher than 43% of them ($200 against a typical $208), it is bigger than 31% of them (1,176 ft² against a typical 1,368 ft²), its lot is bigger than 81% of them (0.38 ac against a typical 0.25 ac) and it is newer than 12% of them (1957 against a typical 1986). Measured against all of Rock County, it is worth more than 38% 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 1521 S River Rd, Janesville, WI?

The 2025 property tax bill for 1521 S River Rd, Janesville, WI was $3,000. The county assessed it at $180,900.

More homes on S River Rd

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More homes in Janesville 53546

Assigned schools

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