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Quadplex (4 Units, Any Combination)Residential

645 S MAIN ST

KALISPELL, MT 59901
8
Beds
4
Baths
2,208 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.
0.16 ac
Lot SizeThe size of the land the home sits on, from county records.
1900
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,177 (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.$536,600 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$583,400
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$536,600

Climate Risk

Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.11
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
30
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
24
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
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
CountyFLATHEAD
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.2000
Lot (acres)The size of the land the home sits on, from county records.0.16
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
HeatingThe type of heating system in the home.Yes
CoolingThe type of cooling or air conditioning in the home.None
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
PoolWhether the property has a pool, and what kind, such as in-ground.No
ViewThe type of view from the property, or another feature of the site that affects value.Major Street/Thoroughfare

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

E
Hedges Elementary SchoolB
Elementary · Grades KG–5 · 0.3 mi
H
Flathead High SchoolC+
High · Grades 9–12 · 0.3 mi
M
Kalispell Middle SchoolB+
Middle · Grades 6–8 · 1.9 mi

District: Flathead High School District

Neighborhood · ZIP 59901These 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.84
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.101
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.220

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.22%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.6%
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.63,278
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.109 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$69,502
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$89,461
Average tempThe average temperature here across a full year.40°F
Annual precipHow much rain and melted snow falls here in a typical year.26 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.52%

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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

645 S 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.

  • Bigger than 84% of homes in Kalispell 59901
  • Has a smaller lot than 84% of homes in Kalispell 59901
  • Among the oldest homes in Flathead County

How it measures up in Kalispell 59901

The dot is this home. The mark in the middle is the typical home in Kalispell 59901.

Living area2,208 ft²
SmallerTypical 1,440 ft²Bigger

Bigger than 84% of homes nearby

Lot size0.16 ac
SmallerTypical 0.46 acBigger

Bigger than 16% of homes nearby

Year built1900
OlderTypical 1995Newer

Older than almost all homes nearby

How 645 S Main St ranks against every home in each area.
MeasureThis homeKalispell 59901Flathead County
Living areabigger than2,208 ft²84% of homes81% of homes
Lot sizebigger than0.16 ac16% of homes18% of homes
Year builtnewer than1900almost no homesalmost no homes

About 645 S Main St

When did 645 S Main St, Kalispell, MT last sell?

645 S Main St, Kalispell, MT last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 645 S Main St, Kalispell, MT?

645 S Main St, Kalispell, MT has 8 bedrooms, 4 bathrooms, 2,208 square feet of living space and a 0.16-acre lot.

When was 645 S Main St, Kalispell, MT built?

645 S Main St, Kalispell, MT was built in 1900, making it 126 years old. It is a quadraplex home. The building has 1 story.

What schools serve 645 S Main St, Kalispell, MT?

645 S Main St, Kalispell, MT is assigned to Hedges Elementary School (elementary), rated B; Flathead High School (high), rated C+; Kalispell Middle School (middle), rated B+. All sit in Flathead High School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 645 S Main St, Kalispell, MT compare to other homes in Kalispell 59901?

Among the 24,337 homes in Kalispell 59901, it is bigger than 84% of them (2,208 ft² against a typical 1,440 ft²), its lot is bigger than 16% of them (0.16 ac against a typical 0.46 ac) and it is newer than almost none of them (1900 against a typical 1995). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 645 S Main St, Kalispell, MT?

The 2026 property tax bill for 645 S Main St, Kalispell, MT was $4,177. The county assessed it at $536,600.

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