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Single Family ResidenceResidential
$333,896$222 / 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 Sep 24, 2026
Last sold for $257,194 on Jan 14, 2026

502 UNION ST

NORTHFIELD, MN 55057
4
Beds
1.5
Baths
1,504 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.
0.23 ac
Lot SizeThe size of the land the home sits on, from county records.
1900
Year BuiltThe year the home was originally built, according to county records.
1
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.
Pre-foreclosure (NTS)A foreclosure notice on this home is currently active. Many are worked out before any auction happens.
Auction scheduled for Nov 26, 2025.

Valuation

$334K
$316K low$352K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$257,194 · Jan 14, 2026

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,460 (2026)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$356,700 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$132,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$224,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$345,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$356,700

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyRICE
Lot (acres)The size of the land the home sits on, from county records.0.23
ConstructionThe main material the home's frame and walls are built from.Brick
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
CoolingThe type of cooling or air conditioning in the home.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 320 ft²

Transaction History(4)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

Foreclosure Filings(1)

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

E
Sibley ElementaryA+
Elementary · Grades KG–5 · 0.7 mi
H
Northfield High SchoolA-
High · Grades 9–12 · 0.8 mi
M
Northfield Middle SchoolA
Middle · Grades 6–8 · 1.4 mi

District: Northfield Public School District

Neighborhood · ZIP 55057These 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.85
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 100.11

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.30%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.1%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.26,848
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.210 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$91,623
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$109,547
Average tempThe average temperature here across a full year.45°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.58%

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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

502 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.

  • Worth less than 65% of homes in Northfield 55057
  • Has a smaller lot than 75% of homes in Rice County
  • Older than 92% of homes in Northfield 55057

What homes are worth in Northfield 55057

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

This home
$175K$860K

This home is worth more than 35% of homes in Northfield 55057.

How it measures up in Northfield 55057

The dot is this home. The mark in the middle is the typical home in Northfield 55057.

Estimated value$333,896
CheaperTypical $382,543Pricier

Pricier than 35% of homes nearby

Price per ft²$222
CheaperTypical $232Pricier

Pricier than 44% of homes nearby

Living area1,504 ft²
SmallerTypical 1,568 ft²Bigger

Bigger than 46% of homes nearby

Lot size0.23 ac
SmallerTypical 0.29 acBigger

Bigger than 30% of homes nearby

Year built1900
OlderTypical 1984Newer

Newer than 8% of homes nearby

How 502 Union St ranks against every home in each area.
MeasureThis homeNorthfield 55057Rice County
Estimated valuepricier than$333,89635% of homes46% of homes
Price per ft²pricier than$22244% of homes45% of homes
Living areabigger than1,504 ft²46% of homes56% of homes
Lot sizebigger than0.23 ac30% of homes25% of homes
Year builtnewer than19008% of homes11% of homes

About 502 Union St

How much is 502 Union St, Northfield, MN worth?

The TopHap Estimate for 502 Union St, Northfield, MN is $333,896 as of Sep 24, 2026. The likely range is $315,935 to $351,857. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 502 Union St, Northfield, MN last sell?

502 Union St, Northfield, MN last sold on Jan 14, 2026 for $257,194, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 502 Union St, Northfield, MN?

502 Union St, Northfield, MN has 4 bedrooms, 1.5 bathrooms, 1,504 square feet of living space and a 0.23-acre lot.

When was 502 Union St, Northfield, MN built?

502 Union St, Northfield, MN was built in 1900, making it 126 years old. The building has 1 story.

What schools serve 502 Union St, Northfield, MN?

502 Union St, Northfield, MN is assigned to Sibley Elementary (elementary), rated A+; Northfield High School (high), rated A-; Northfield Middle School (middle), rated A. All sit in Northfield Public School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 502 Union St, Northfield, MN compare to other homes in Northfield 55057?

Among the 7,758 homes in Northfield 55057, it is worth more than 35% of them ($333,896 against a typical $382,543), its price per square foot is higher than 44% of them ($222 against a typical $232), it is bigger than 46% of them (1,504 ft² against a typical 1,568 ft²), its lot is bigger than 30% of them (0.23 ac against a typical 0.29 ac) and it is newer than 8% of them (1900 against a typical 1984). Measured against all of Rice 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 502 Union St, Northfield, MN?

The 2026 property tax bill for 502 Union St, Northfield, MN was $7,460. The county assessed it at $356,700.

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Assigned schools

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