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Single Family ResidenceResidential
$332,170$304 / 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 Oct 21, 2026
Last sold for $128,100 on Feb 17, 2015

817 51ST ST S

GREAT FALLS, MT 59405
3
Beds
2
Baths
1,092 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.
0.2 ac
Lot SizeThe size of the land the home sits on, from county records.
1961
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.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$332K
$317K low$347K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$128,100 · Feb 17, 2015

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,856 (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.$310,200 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$255,800
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$310,200

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.Ranch
CountyCASCADE
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.1985
Lot (acres)The size of the land the home sits on, from county records.0.20
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.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
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 · 338 ft²

Transaction History(2)

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
Chief Joseph Elementary SchoolB
Elementary · Grades KG–6 · 0.5 mi
M
East Middle SchoolD+
Middle · Grades 7–8 · 0.9 mi
H
Great Falls High SchoolD+
High · Grades 9–12 · 2.5 mi

District: Great Falls Elementary School District

Neighborhood · ZIP 59405These 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.108
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.105
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.54

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.17%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.7%
PopulationHow many people live in this area.32,971
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.88 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$55,016
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$69,667
Average tempThe average temperature here across a full year.43°F
Annual precipHow much rain and melted snow falls here in a typical year.17 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.61%

Owner Tools

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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

817 51st St 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.

What homes are worth in Great Falls 59405

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

This home
$175K$882K

This home is worth more than 51% of homes in Great Falls 59405.

How it measures up in Great Falls 59405

The dot is this home. The mark in the middle is the typical home in Great Falls 59405.

Estimated value$332,170
CheaperTypical $331,265Pricier

Pricier than 51% of homes nearby

Price per ft²$304
CheaperTypical $288Pricier

Pricier than 60% of homes nearby

Living area1,092 ft²
SmallerTypical 1,161 ft²Bigger

Bigger than 42% of homes nearby

Lot size0.2 ac
SmallerTypical 0.17 acBigger

Bigger than 63% of homes nearby

Year built1961
OlderTypical 1961Newer

Newer than 51% of homes nearby

How 817 51st St S ranks against every home in each area.
MeasureThis homeGreat Falls 59405Cascade County
Estimated valuepricier than$332,17051% of homes44% of homes
Price per ft²pricier than$30460% of homes59% of homes
Living areabigger than1,092 ft²42% of homes37% of homes
Lot sizebigger than0.2 ac63% of homes47% of homes
Year builtnewer than196151% of homes45% of homes

About 817 51st St S

How much is 817 51st St S, Great Falls, MT worth?

The TopHap Estimate for 817 51st St S, Great Falls, MT is $332,170 as of Oct 21, 2026. The likely range is $317,210 to $347,130. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 817 51st St S, Great Falls, MT last sell?

817 51st St S, Great Falls, MT last sold on Feb 17, 2015 for $128,100, according to the county's recorded deed.

How big is 817 51st St S, Great Falls, MT?

817 51st St S, Great Falls, MT has 3 bedrooms, 2 bathrooms, 1,092 square feet of living space and a 0.20-acre lot.

When was 817 51st St S, Great Falls, MT built?

817 51st St S, Great Falls, MT was built in 1961, making it 65 years old. It is a ranch home. The building has 1 story.

What schools serve 817 51st St S, Great Falls, MT?

817 51st St S, Great Falls, MT is assigned to Chief Joseph Elementary School (elementary), rated B; East Middle School (middle), rated D+; Great Falls High School (high), rated D+. All sit in Great Falls Elementary School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 817 51st St S, Great Falls, MT compare to other homes in Great Falls 59405?

Among the 9,968 homes in Great Falls 59405, it is worth more than 51% of them ($332,170 against a typical $331,265), its price per square foot is higher than 60% of them ($304 against a typical $288), it is bigger than 42% of them (1,092 ft² against a typical 1,161 ft²), its lot is bigger than 63% of them (0.2 ac against a typical 0.17 ac) and it is newer than 51% of them (1961 against a typical 1961). Measured against all of Cascade County, it is worth more than 44% 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 817 51st St S, Great Falls, MT?

The 2026 property tax bill for 817 51st St S, Great Falls, MT was $1,856. The county assessed it at $310,200.

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