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Residential (General/Single)Residential
$274,183$286 / 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 87How 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

4325 N WEST RIVER DR

JANESVILLE, WI 53548
3
Beds
1
Baths
960 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.
0.42 ac
Lot SizeThe size of the land the home sits on, from county records.
1930
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$274K
$239K low$309K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,983 (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.$232,300 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$113,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$119,300
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$258,900

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.38
37
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
23
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
66
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
62
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
3
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.42 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
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.0.2 percent flood zone

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Residential (General/Single)
StyleThe architectural style of the home, such as ranch or colonial.Cottage
CountyROCK
Lot (acres)The size of the land the home sits on, from county records.0.42
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(2)

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
Consolidated Elementary SchoolA+
Elementary · Grades KG–3 · 0.8 mi
H
Milton High SchoolC+
High · Grades 9–12 · 6.1 mi
M
Milton Middle SchoolB+
Middle · Grades 7–8 · 6.5 mi

District: Milton School District

Neighborhood · ZIP 53548These 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.92
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.92
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.17%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.20,818
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.284 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$74,018
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$85,665
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

4325 N West River Dr 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.

  • Costs more per square foot than 95% of homes in Rock County
  • Smaller than 89% of homes in Janesville 53548
  • Has a bigger lot than 73% of homes in Janesville 53548
  • Older than 75% of homes in Rock County

What homes are worth in Janesville 53548

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

This home
$105K$776K

This home is worth more than 48% of homes in Janesville 53548.

How it measures up in Janesville 53548

The dot is this home. The mark in the middle is the typical home in Janesville 53548.

Estimated value$274,183
CheaperTypical $280,407Pricier

Pricier than 48% of homes nearby

Price per ft²$286
CheaperTypical $192Pricier

Pricier than 94% of homes nearby

Living area960 ft²
SmallerTypical 1,454 ft²Bigger

Bigger than 11% of homes nearby

Lot size0.42 ac
SmallerTypical 0.24 acBigger

Bigger than 73% of homes nearby

Year built1930
OlderTypical 1963Newer

Newer than 30% of homes nearby

How 4325 N West River Dr ranks against every home in each area.
MeasureThis homeJanesville 53548Rock County
Estimated valuepricier than$274,18348% of homes46% of homes
Price per ft²pricier than$28694% of homes95% of homes
Living areabigger than960 ft²11% of homes14% of homes
Lot sizebigger than0.42 ac73% of homes72% of homes
Year builtnewer than193030% of homes25% of homes

About 4325 N West River Dr

How much is 4325 N West River Dr, Janesville, WI worth?

The TopHap Estimate for 4325 N West River Dr, Janesville, WI is $274,183 as of Sep 24, 2026. The likely range is $239,012 to $309,354. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4325 N West River Dr, Janesville, WI last sell?

4325 N West River Dr, Janesville, WI last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 4325 N West River Dr, Janesville, WI?

4325 N West River Dr, Janesville, WI has 3 bedrooms, 1 bathrooms, 960 square feet of living space and a 0.42-acre lot.

When was 4325 N West River Dr, Janesville, WI built?

4325 N West River Dr, Janesville, WI was built in 1930, making it 96 years old. It is a cottage home. The building has 1 story.

What schools serve 4325 N West River Dr, Janesville, WI?

4325 N West River Dr, Janesville, WI is assigned to Consolidated Elementary School (elementary), rated A+; Milton High School (high), rated C+; Milton Middle School (middle), rated B+. All sit in Milton School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4325 N West River Dr, Janesville, WI compare to other homes in Janesville 53548?

Among the 6,715 homes in Janesville 53548, it is worth more than 48% of them ($274,183 against a typical $280,407), its price per square foot is higher than 94% of them ($286 against a typical $192), it is bigger than 11% of them (960 ft² against a typical 1,454 ft²), its lot is bigger than 73% of them (0.42 ac against a typical 0.24 ac) and it is newer than 30% of them (1930 against a typical 1963). Measured against all of Rock County, it is worth more than 46% 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 4325 N West River Dr, Janesville, WI?

The 2025 property tax bill for 4325 N West River Dr, Janesville, WI was $2,983. The county assessed it at $232,300.

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