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Quadplex (4 Units, Any Combination)Residential
Last sold for $113,800 on Aug 5, 2013

421 11TH ST S

GREAT FALLS, MT 59405
0
Baths
1,995 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.
0.17 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.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$113,800 · Aug 5, 2013

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,575 (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.$506,400 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$365,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$506,400

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.8 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.Quadplex (4 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Quadraplex
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.0.17
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
HeatingThe type of heating system in the home.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

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
Longfellow Elementary SchoolD+
Elementary · Grades KG–6 · 0.1 mi
H
Great Falls High SchoolD-
High · Grades 9–12 · 0.7 mi
M
East Middle SchoolC+
Middle · Grades 7–8 · 2.4 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%

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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

421 11th 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.

  • Bigger than 90% of homes in Great Falls 59405
  • Has a smaller lot than 80% of homes in Cascade County

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.

Living area1,995 ft²
SmallerTypical 1,162 ft²Bigger

Bigger than 90% of homes nearby

Lot size0.17 ac
SmallerTypical 0.17 acBigger

Bigger than 26% of homes nearby

Year built1961
OlderTypical 1961Newer

Newer than 51% of homes nearby

How 421 11th St S ranks against every home in each area.
MeasureThis homeGreat Falls 59405Cascade County
Living areabigger than1,995 ft²90% of homes87% of homes
Lot sizebigger than0.17 ac26% of homes20% of homes
Year builtnewer than196151% of homes45% of homes

About 421 11th St S

When did 421 11th St S, Great Falls, MT last sell?

421 11th St S, Great Falls, MT last sold on Aug 5, 2013 for $113,800, according to the county's recorded deed.

How big is 421 11th St S, Great Falls, MT?

421 11th St S, Great Falls, MT has 1,995 square feet of living space and a 0.17-acre lot.

When was 421 11th St S, Great Falls, MT built?

421 11th St S, Great Falls, MT was built in 1961, making it 65 years old. It is a quadraplex home. The building has 1 story.

What schools serve 421 11th St S, Great Falls, MT?

421 11th St S, Great Falls, MT is assigned to Longfellow Elementary School (elementary), rated D+; Great Falls High School (high), rated D-; East Middle School (middle), rated C+. All sit in Great Falls Elementary School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 421 11th St S, Great Falls, MT compare to other homes in Great Falls 59405?

Among the 9,968 homes in Great Falls 59405, it is bigger than 90% of them (1,995 ft² against a typical 1,162 ft²), its lot is bigger than 26% of them (0.17 ac against a typical 0.17 ac) and it is newer than 51% of them (1961 against a typical 1961). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 421 11th St S, Great Falls, MT?

The 2026 property tax bill for 421 11th St S, Great Falls, MT was $7,575. The county assessed it at $506,400.

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