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Single Family ResidenceResidential
$332,149$332 / 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 86How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026

21 MAIN ST

SAINT REGIS, MT 59866
3
Beds
1
Baths
1,000 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.
0.34 ac
Lot SizeThe size of the land the home sits on, from county records.
1940
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.
5
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$332K
$285K low$380K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,070 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$227,200 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$187,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$227,200

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.23 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%

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
StyleThe architectural style of the home, such as ranch or colonial.Conventional
CountyMINERAL
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.1995
Lot (acres)The size of the land the home sits on, from county records.0.34
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.Metal
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.Mixed
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.Shed · 280 ft²Porch · 112 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
St Regis SchoolC+
Elementary · Grades PK–6 · 0.2 mi
M
St Regis 7-8A-
Middle · Grades 7–8 · 0.2 mi
H
St Regis High SchoolC+
High · Grades 9–12 · 0.2 mi

District: St. Regis K-12 Schools

Neighborhood · ZIP 59866These 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.142
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.102
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.87

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.79%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.31%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.13%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.1,294
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.5 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$69,713
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$92,807
Average tempThe average temperature here across a full year.42°F
Annual precipHow much rain and melted snow falls here in a typical year.42 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.52%

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 Main St 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 87% of homes in Saint Regis 59866
  • Costs less per square foot than 68% of homes in Saint Regis 59866
  • Smaller than 70% of homes in Mineral County
  • Has a smaller lot than 93% of homes in Saint Regis 59866
  • Older than 95% of homes in Saint Regis 59866

What homes are worth in Saint Regis 59866

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

This home
$224K$1.2M

This home is worth more than 13% of homes in Saint Regis 59866.

How it measures up in Saint Regis 59866

The dot is this home. The mark in the middle is the typical home in Saint Regis 59866.

Estimated value$332,149
CheaperTypical $529,965Pricier

Pricier than 13% of homes nearby

Price per ft²$332
CheaperTypical $388Pricier

Pricier than 32% of homes nearby

Living area1,000 ft²
SmallerTypical 1,200 ft²Bigger

Bigger than 37% of homes nearby

Lot size0.34 ac
SmallerTypical 1.19 acBigger

Bigger than 7% of homes nearby

Year built1940
OlderTypical 1989Newer

Newer than 5% of homes nearby

How 21 Main St ranks against every home in each area.
MeasureThis homeSaint Regis 59866Mineral County
Estimated valuepricier than$332,14913% of homes17% of homes
Price per ft²pricier than$33232% of homes36% of homes
Living areabigger than1,000 ft²37% of homes30% of homes
Lot sizebigger than0.34 ac7% of homes22% of homes
Year builtnewer than19405% of homes9% of homes

About 21 Main St

How much is 21 Main St, Saint Regis, MT worth?

The TopHap Estimate for 21 Main St, Saint Regis, MT is $332,149 as of Sep 24, 2026. The likely range is $284,553 to $379,745. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 21 Main St, Saint Regis, MT last sell?

21 Main St, Saint Regis, MT last sold on Dec 2, 2013, according to the county's recorded deed.

How big is 21 Main St, Saint Regis, MT?

21 Main St, Saint Regis, MT has 3 bedrooms, 1 bathrooms, 1,000 square feet of living space and a 0.34-acre lot.

When was 21 Main St, Saint Regis, MT built?

21 Main St, Saint Regis, MT was built in 1940, making it 86 years old. It is a conventional home. The building has 1 story.

What schools serve 21 Main St, Saint Regis, MT?

21 Main St, Saint Regis, MT is assigned to St Regis School (elementary), rated C+; St Regis 7-8 (middle), rated A-; St Regis High School (high), rated C+. All sit in St. Regis K-12 Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 21 Main St, Saint Regis, MT compare to other homes in Saint Regis 59866?

Among the 713 homes in Saint Regis 59866, it is worth more than 13% of them ($332,149 against a typical $529,965), its price per square foot is higher than 32% of them ($332 against a typical $388), it is bigger than 37% of them (1,000 ft² against a typical 1,200 ft²), its lot is bigger than 7% of them (0.34 ac against a typical 1.19 ac) and it is newer than 5% of them (1940 against a typical 1989). Measured against all of Mineral County, it is worth more than 17% 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 Main St, Saint Regis, MT?

The 2025 property tax bill for 21 Main St, Saint Regis, MT was $1,070. The county assessed it at $227,200.

More homes on Main St

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