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Single Family ResidenceResidential
$332,995$193 / 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 97How 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

509 20TH ST SW

ROCHESTER, MN 55902
3
Beds
2
Baths
1,729 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.
0.36 ac
Lot SizeThe size of the land the home sits on, from county records.
1996
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
4
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$333K
$321K low$345K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,848 (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.$345,700 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$38,400
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$307,300
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$358,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$359,900

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.32
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
10
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
61
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
48
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
44
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
CountyOLMSTED
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.1998
Lot (acres)The size of the land the home sits on, from county records.0.36
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
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.Central
GarageWhether the property has a garage, and details like whether it is attached to the home.Mixed
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.Deck · 224 ft²Porch · 40 ft²

Transaction History(1)

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
Franklin Elementary SchoolD+
Elementary · Grades PK–5 · 1.0 mi
H
Mayo High SchoolA
High · Grades 9–12 · 1.4 mi
M
Willow Creek Middle SchoolB-
Middle · Grades 6–8 · 1.5 mi

District: Rochester Public School District

Neighborhood · ZIP 55902These 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.76
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.82
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.14

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.29%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.8%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.8%
PopulationHow many people live in this area.26,266
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.635 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$122,949
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$170,465
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.59%

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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

509 20th St Sw 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 66% of homes in Rochester 55902
  • Costs less per square foot than 74% of homes in Rochester 55902
  • Bigger than 70% of homes in Olmsted County
  • Has a bigger lot than 74% of homes in Olmsted County

What homes are worth in Rochester 55902

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

This home
$137K$1.4M

This home is worth more than 34% of homes in Rochester 55902.

How it measures up in Rochester 55902

The dot is this home. The mark in the middle is the typical home in Rochester 55902.

Estimated value$332,995
CheaperTypical $416,151Pricier

Pricier than 34% of homes nearby

Price per ft²$193
CheaperTypical $232Pricier

Pricier than 26% of homes nearby

Living area1,729 ft²
SmallerTypical 1,820 ft²Bigger

Bigger than 46% of homes nearby

Lot size0.36 ac
SmallerTypical 0.28 acBigger

Bigger than 62% of homes nearby

Year built1996
OlderTypical 1991Newer

Newer than 59% of homes nearby

How 509 20th St Sw ranks against every home in each area.
MeasureThis homeRochester 55902Olmsted County
Estimated valuepricier than$332,99534% of homes58% of homes
Price per ft²pricier than$19326% of homes32% of homes
Living areabigger than1,729 ft²46% of homes70% of homes
Lot sizebigger than0.36 ac62% of homes74% of homes
Year builtnewer than199659% of homes62% of homes

About 509 20th St Sw

How much is 509 20th St Sw, Rochester, MN worth?

The TopHap Estimate for 509 20th St Sw, Rochester, MN is $332,995 as of Aug 30, 2026. The likely range is $321,427 to $344,563. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 509 20th St Sw, Rochester, MN last sell?

509 20th St Sw, Rochester, MN last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 509 20th St Sw, Rochester, MN?

509 20th St Sw, Rochester, MN has 3 bedrooms, 2 bathrooms, 1,729 square feet of living space and a 0.36-acre lot.

When was 509 20th St Sw, Rochester, MN built?

509 20th St Sw, Rochester, MN was built in 1996, making it 30 years old. The building has 1 story.

What schools serve 509 20th St Sw, Rochester, MN?

509 20th St Sw, Rochester, MN is assigned to Franklin Elementary School (elementary), rated D+; Mayo High School (high), rated A; Willow Creek Middle School (middle), rated B-. All sit in Rochester Public School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 509 20th St Sw, Rochester, MN compare to other homes in Rochester 55902?

Among the 9,331 homes in Rochester 55902, it is worth more than 34% of them ($332,995 against a typical $416,151), its price per square foot is higher than 26% of them ($193 against a typical $232), it is bigger than 46% of them (1,729 ft² against a typical 1,820 ft²), its lot is bigger than 62% of them (0.36 ac against a typical 0.28 ac) and it is newer than 59% of them (1996 against a typical 1991). Measured against all of Olmsted County, it is worth more than 58% 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 509 20th St Sw, Rochester, MN?

The 2026 property tax bill for 509 20th St Sw, Rochester, MN was $4,848. The county assessed it at $345,700.

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