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Duplex (2 Units, Any Combination)Residential
Last sold for $393,395 on Sep 18, 2026

260 21ST AVE NW

GREAT FALLS, MT 59404
0
Baths
1,632 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.
0.24 ac
Lot SizeThe size of the land the home sits on, from county records.
1958
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

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$393,395 · Sep 18, 2026

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,627 (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.$418,800 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$331,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$418,800

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Duplex (2 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Duplex Single
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.0.23
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
HeatingThe type of heating system in the home.Yes
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

Transaction History(3)

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
Riverview Elementary SchoolA-
Elementary · Grades KG–6 · 0.1 mi
H
C M Russell High SchoolB-
High · Grades 9–12 · 0.3 mi
M
North Middle SchoolB-
Middle · Grades 7–8 · 1.2 mi

District: Great Falls High School District

Neighborhood · ZIP 59404These 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.59
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.104
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.53

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.19%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.3%
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.28,661
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.101 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$81,568
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$97,297
Average tempThe average temperature here across a full year.45°F
Annual precipHow much rain and melted snow falls here in a typical year.14 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.61%

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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

260 21st Ave Nw 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.

  • Bigger than 76% of homes in Cascade County
  • Older than 80% of homes in Great Falls 59404

How it measures up in Great Falls 59404

The dot is this home. The mark in the middle is the typical home in Great Falls 59404.

Living area1,632 ft²
SmallerTypical 1,332 ft²Bigger

Bigger than 71% of homes nearby

Lot size0.24 ac
SmallerTypical 0.24 acBigger

Bigger than 47% of homes nearby

Year built1958
OlderTypical 1976Newer

Newer than 20% of homes nearby

How 260 21st Ave Nw ranks against every home in each area.
MeasureThis homeGreat Falls 59404Cascade County
Living areabigger than1,632 ft²71% of homes76% of homes
Lot sizebigger than0.24 ac47% of homes58% of homes
Year builtnewer than195820% of homes39% of homes

About 260 21st Ave Nw

When did 260 21st Ave Nw, Great Falls, MT last sell?

260 21st Ave Nw, Great Falls, MT last sold on Sep 18, 2026 for $393,395, according to the county's recorded deed.

How big is 260 21st Ave Nw, Great Falls, MT?

260 21st Ave Nw, Great Falls, MT has 1,632 square feet of living space and a 0.23-acre lot.

When was 260 21st Ave Nw, Great Falls, MT built?

260 21st Ave Nw, Great Falls, MT was built in 1958, making it 68 years old. It is a duplex single home. The building has 1 story.

What schools serve 260 21st Ave Nw, Great Falls, MT?

260 21st Ave Nw, Great Falls, MT is assigned to Riverview Elementary School (elementary), rated A-; C M Russell High School (high), rated B-; North Middle School (middle), rated B-. All sit in Great Falls High School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 260 21st Ave Nw, Great Falls, MT compare to other homes in Great Falls 59404?

Among the 11,757 homes in Great Falls 59404, it is bigger than 71% of them (1,632 ft² against a typical 1,332 ft²), its lot is bigger than 47% of them (0.24 ac against a typical 0.24 ac) and it is newer than 20% of them (1958 against a typical 1976). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 260 21st Ave Nw, Great Falls, MT?

The 2026 property tax bill for 260 21st Ave Nw, Great Falls, MT was $3,627. The county assessed it at $418,800.

More homes on 21st Ave Nw

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