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Mobile HomeResidential
$259,221$154 / 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 94How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026

21 IRISH LN

GREAT FALLS, MT 59405
3
Beds
2
Baths
1,680 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.
0.5 ac
Lot SizeThe size of the land the home sits on, from county records.
1979
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
5
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

$259K
$244K low$275K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$424 (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.$98,421 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$77,558
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$98,421

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Mobile Home
StyleThe architectural style of the home, such as ranch or colonial.Mobile Home
CountyCASCADE
Lot (acres)The size of the land the home sits on, from county records.0.50
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.Central
CoolingThe type of cooling or air conditioning in the home.Central
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 183 ft²Shed · 192 ft²Porch · 147 ft²

Transaction History(1)

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
Mountain View Elementary SchoolC
Elementary · Grades KG–6 · 3.2 mi
H
Great Falls High SchoolD+
High · Grades 9–12 · 3.4 mi
M
East Middle SchoolD+
Middle · Grades 7–8 · 4.3 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

21 Irish Ln 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 83% of homes in Great Falls 59405
  • Costs less per square foot than 98% of homes in Great Falls 59405
  • Bigger than 82% of homes in Great Falls 59405
  • Has a bigger lot than 88% of homes in Great Falls 59405
  • Newer than 74% of homes in Great Falls 59405

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 17% 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$259,221
CheaperTypical $331,265Pricier

Pricier than 17% of homes nearby

Price per ft²$154
CheaperTypical $288Pricier

Pricier than 2% of homes nearby

Living area1,680 ft²
SmallerTypical 1,161 ft²Bigger

Bigger than 82% of homes nearby

Lot size0.5 ac
SmallerTypical 0.17 acBigger

Bigger than 88% of homes nearby

Year built1979
OlderTypical 1961Newer

Newer than 74% of homes nearby

How 21 Irish Ln ranks against every home in each area.
MeasureThis homeGreat Falls 59405Cascade County
Estimated valuepricier than$259,22117% of homes18% of homes
Price per ft²pricier than$1542% of homes3% of homes
Living areabigger than1,680 ft²82% of homes77% of homes
Lot sizebigger than0.5 ac88% of homes75% of homes
Year builtnewer than197974% of homes69% of homes

About 21 Irish Ln

How much is 21 Irish Ln, Great Falls, MT worth?

The TopHap Estimate for 21 Irish Ln, Great Falls, MT is $259,221 as of Aug 30, 2026. The likely range is $243,800 to $274,642. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Irish Ln, Great Falls, MT last sell?

21 Irish Ln, Great Falls, MT last sold on Nov 19, 2010, according to the county's recorded deed.

How big is 21 Irish Ln, Great Falls, MT?

21 Irish Ln, Great Falls, MT has 3 bedrooms, 2 bathrooms, 1,680 square feet of living space and a 0.50-acre lot.

When was 21 Irish Ln, Great Falls, MT built?

21 Irish Ln, Great Falls, MT was built in 1979, making it 47 years old. It is a mobile home home. The building has 1 story.

What schools serve 21 Irish Ln, Great Falls, MT?

21 Irish Ln, Great Falls, MT is assigned to Mountain View Elementary School (elementary), rated C; Great Falls High School (high), rated D+; East Middle School (middle), rated D+. All sit in Great Falls Elementary School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Irish Ln, 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 17% of them ($259,221 against a typical $331,265), its price per square foot is higher than 2% of them ($154 against a typical $288), it is bigger than 82% of them (1,680 ft² against a typical 1,161 ft²), its lot is bigger than 88% of them (0.5 ac against a typical 0.17 ac) and it is newer than 74% of them (1979 against a typical 1961). Measured against all of Cascade County, it is worth more than 18% 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 21 Irish Ln, Great Falls, MT?

The 2026 property tax bill for 21 Irish Ln, Great Falls, MT was $424. The county assessed it at $98,421.

More homes on Irish Ln

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