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Single Family ResidenceResidential
$280,468
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 88How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026

421 UNION ST

RIVER FALLS, WI 54022
0
Baths

Valuation

$280K
$248K low$313K 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.$280,468
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$224,374

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,198 (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.$313,900 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$76,900
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$237,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$230,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$313,900

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountySt. Croix
HeatingThe type of heating system in the home.None

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

E
Greenwood Elementary SchoolB-
Elementary · Grades KG–5 · 0.3 mi
M
Meyer Middle SchoolB+
Middle · Grades 6–8 · 0.4 mi
H
River Falls High SchoolA
High · Grades 9–12 · 1.7 mi

District: River Falls School District

Neighborhood · ZIP 54022These 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.104
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.84
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.7

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.34%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.12%
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.25,423
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.186 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$93,602
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$112,867
Average tempThe average temperature here across a full year.44°F
Annual precipHow much rain and melted snow falls here in a typical year.32 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.Owner occupied
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

421 Union 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.

What homes are worth in River Falls 54022

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

This home
$132K$745K

This home is worth more than 47% of homes in River Falls 54022.

How it measures up in River Falls 54022

The dot is this home. The mark in the middle is the typical home in River Falls 54022.

Estimated value$280,468
CheaperTypical $292,376Pricier

Pricier than 47% of homes nearby

How 421 Union St ranks against every home in each area.
MeasureThis homeRiver Falls 54022St. Croix County
Estimated valuepricier than$280,46847% of homes48% of homes

About 421 Union St

How much is 421 Union St, River Falls, WI worth?

The TopHap Estimate for 421 Union St, River Falls, WI is $280,468 as of Jul 14, 2026. The likely range is $247,911 to $313,025. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 421 Union St, River Falls, WI last sell?

421 Union St, River Falls, WI last sold on Jul 23, 1997, according to the county's recorded deed.

What schools serve 421 Union St, River Falls, WI?

421 Union St, River Falls, WI is assigned to Greenwood Elementary School (elementary), rated B-; Meyer Middle School (middle), rated B+; River Falls High School (high), rated A. All sit in River Falls School District. Attendance boundaries change — confirm with the district before relying on an assignment.

What are the property taxes on 421 Union St, River Falls, WI?

The 2025 property tax bill for 421 Union St, River Falls, WI was $4,198. The county assessed it at $313,900.

More homes on Union St

Closest homes

More homes in River Falls 54022

Assigned schools

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