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Single Family ResidenceResidential
$279,836$357 / 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 90How 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 $160,000 on Jun 10, 2024

21519 645TH AVE

BERTHA, MN 56437
4
Beds
2
Baths
784 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.
5.36 ac
Lot SizeThe size of the land the home sits on, from county records.
1916
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$280K
$252K low$308K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$160,000 · Jun 10, 2024

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,582 (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.$220,800 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$63,100
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$157,700
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$209,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$220,800

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.35
10
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
38
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
48
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
50
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
30
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.6 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%

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
StyleThe architectural style of the home, such as ranch or colonial.A-Frame
CountyOTTER TAIL
Lot (acres)The size of the land the home sits on, from county records.5.36
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Metal
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.None
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

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

M
Bertha-Hewitt Secondary SchoolC-
Middle · Grades 7–12 · 4.1 mi
E
Bertha-Hewitt Elementary SchoolB
Elementary · Grades PK–6 · 4.1 mi

District: Bertha-Hewitt Public School District

Neighborhood · ZIP 56437These 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.135
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.132
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.16

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.91%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.11%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.4%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.1,476
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.22 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$61,819
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$67,174
Average tempThe average temperature here across a full year.41°F
Annual precipHow much rain and melted snow falls here in a typical year.26 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

21519 645th Ave 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 more than 86% of homes in Bertha 56437
  • Costs more per square foot than 87% of homes in Bertha 56437
  • Smaller than 68% of homes in Otter Tail County
  • Has a bigger lot than 79% of homes in Otter Tail County
  • Older than 91% of homes in Otter Tail County

What homes are worth in Bertha 56437

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

This home
$40K$456K

This home is worth more than 86% of homes in Bertha 56437.

How it measures up in Bertha 56437

The dot is this home. The mark in the middle is the typical home in Bertha 56437.

Estimated value$279,836
CheaperTypical $134,104Pricier

Pricier than 86% of homes nearby

Price per ft²$357
CheaperTypical $160Pricier

Pricier than 87% of homes nearby

Living area784 ft²
SmallerTypical 832 ft²Bigger

Bigger than 46% of homes nearby

Lot size5.36 ac
SmallerTypical 5 acBigger

Bigger than 51% of homes nearby

Year built1916
OlderTypical 1958Newer

Newer than 21% of homes nearby

How 21519 645th Ave ranks against every home in each area.
MeasureThis homeBertha 56437Otter Tail County
Estimated valuepricier than$279,83686% of homes42% of homes
Price per ft²pricier than$35787% of homes58% of homes
Living areabigger than784 ft²46% of homes32% of homes
Lot sizebigger than5.36 ac51% of homes79% of homes
Year builtnewer than191621% of homes9% of homes

About 21519 645th Ave

How much is 21519 645th Ave, Bertha, MN worth?

The TopHap Estimate for 21519 645th Ave, Bertha, MN is $279,836 as of Sep 24, 2026. The likely range is $251,803 to $307,869. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21519 645th Ave, Bertha, MN last sell?

21519 645th Ave, Bertha, MN last sold on Jun 10, 2024 for $160,000, according to the county's recorded deed.

How big is 21519 645th Ave, Bertha, MN?

21519 645th Ave, Bertha, MN has 4 bedrooms, 2 bathrooms, 784 square feet of living space and a 5.36-acre lot.

When was 21519 645th Ave, Bertha, MN built?

21519 645th Ave, Bertha, MN was built in 1916, making it 110 years old. It is a a-frame home. The building has 1 story.

What schools serve 21519 645th Ave, Bertha, MN?

21519 645th Ave, Bertha, MN is assigned to Bertha-Hewitt Secondary School (middle), rated C-; Bertha-Hewitt Elementary School (elementary), rated B. All sit in Bertha-Hewitt Public School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21519 645th Ave, Bertha, MN compare to other homes in Bertha 56437?

Among the 515 homes in Bertha 56437, it is worth more than 86% of them ($279,836 against a typical $134,104), its price per square foot is higher than 87% of them ($357 against a typical $160), it is bigger than 46% of them (784 ft² against a typical 832 ft²), its lot is bigger than 51% of them (5.36 ac against a typical 5 ac) and it is newer than 21% of them (1916 against a typical 1958). Measured against all of Otter Tail County, it is worth more than 42% 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 21519 645th Ave, Bertha, MN?

The 2026 property tax bill for 21519 645th Ave, Bertha, MN was $1,582. The county assessed it at $220,800.

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