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Single Family ResidenceResidential
$61,860$103 / 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 74How 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
Last sold for $35,000 on Aug 17, 2005

509 ARNOLD AVE S

THIEF RIVER FALLS, MN 56701
0
Baths
600 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.
0.18 ac
Lot SizeThe size of the land the home sits on, from county records.
1920
Year BuiltThe year the home was originally built, according to county records.

Valuation

$62K
$46K low$78K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$35,000 · Aug 17, 2005
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.$26,858
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$21,486
Loan-to-ValueHow much is still owed on the home compared to what it is worth. 80% means loans equal 80% of our estimate, so it shifts when the estimate does.58%
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$35,002
MINNESOTA HOUSING FINANCE AGENCY · recorded Aug 17, 2005

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$498 (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.$43,800 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$17,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$26,300
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$43,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$43,800

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.24
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
18
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
42
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
41
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
19
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

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
CountyPENNINGTON
Lot (acres)The size of the land the home sits on, from county records.0.18
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.

H
Lincoln Senior High SchoolC
High · Grades 9–12 · 0.3 mi
M
Franklin Middle SchoolC+
Middle · Grades 6–8 · 1.2 mi
E
Challenger Elementary SchoolC+
Elementary · Grades PK–5 · 1.4 mi

District: Thief River Falls School District

Neighborhood · ZIP 56701These 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.125
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.87
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.6

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.92%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.15%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.8%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.5%
PopulationHow many people live in this area.11,683
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.31 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$72,770
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$87,915
Average tempThe average temperature here across a full year.39°F
Annual precipHow much rain and melted snow falls here in a typical year.22 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.59%

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

509 Arnold Ave S 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 90% of homes in Thief River Falls 56701
  • Costs less per square foot than 75% of homes in Thief River Falls 56701
  • Among the smallest homes in Thief River Falls 56701
  • Has a smaller lot than 72% of homes in Thief River Falls 56701
  • Older than 79% of homes in Thief River Falls 56701

What homes are worth in Thief River Falls 56701

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

This home
$35K$415K

This home is worth more than 10% of homes in Thief River Falls 56701.

How it measures up in Thief River Falls 56701

The dot is this home. The mark in the middle is the typical home in Thief River Falls 56701.

Estimated value$61,860
CheaperTypical $171,789Pricier

Pricier than 10% of homes nearby

Price per ft²$103
CheaperTypical $129Pricier

Pricier than 25% of homes nearby

Living area600 ft²
SmallerTypical 1,335 ft²Bigger

Smaller than almost all homes nearby

Lot size0.18 ac
SmallerTypical 0.34 acBigger

Bigger than 28% of homes nearby

Year built1920
OlderTypical 1969Newer

Newer than 21% of homes nearby

How 509 Arnold Ave S ranks against every home in each area.
MeasureThis homeThief River Falls 56701
Estimated valuepricier than$61,86010% of homes
Price per ft²pricier than$10325% of homes
Living areabigger than600 ft²almost no homes
Lot sizebigger than0.18 ac28% of homes
Year builtnewer than192021% of homes

About 509 Arnold Ave S

How much is 509 Arnold Ave S, Thief River Falls, MN worth?

The TopHap Estimate for 509 Arnold Ave S, Thief River Falls, MN is $61,860 as of Jul 14, 2026. The likely range is $45,851 to $77,869. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 509 Arnold Ave S, Thief River Falls, MN last sell?

509 Arnold Ave S, Thief River Falls, MN last sold on Aug 17, 2005 for $35,000, according to the county's recorded deed.

How big is 509 Arnold Ave S, Thief River Falls, MN?

509 Arnold Ave S, Thief River Falls, MN has 600 square feet of living space and a 0.18-acre lot.

When was 509 Arnold Ave S, Thief River Falls, MN built?

509 Arnold Ave S, Thief River Falls, MN was built in 1920, making it 106 years old.

What schools serve 509 Arnold Ave S, Thief River Falls, MN?

509 Arnold Ave S, Thief River Falls, MN is assigned to Lincoln Senior High School (high), rated C; Franklin Middle School (middle), rated C+; Challenger Elementary School (elementary), rated C+. All sit in Thief River Falls School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 509 Arnold Ave S, Thief River Falls, MN compare to other homes in Thief River Falls 56701?

Among the 4,896 homes in Thief River Falls 56701, it is worth more than 10% of them ($61,860 against a typical $171,789), its price per square foot is higher than 25% of them ($103 against a typical $129), it is bigger than almost none of them (600 ft² against a typical 1,335 ft²), its lot is bigger than 28% of them (0.18 ac against a typical 0.34 ac) and it is newer than 21% of them (1920 against a typical 1969). 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 Arnold Ave S, Thief River Falls, MN?

The 2026 property tax bill for 509 Arnold Ave S, Thief River Falls, MN was $498. The county assessed it at $43,800.

Closest homes

More homes in Thief River Falls 56701

Assigned schools

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