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Single Family ResidenceResidential
$766,343$566 / 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 66How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Oct 21, 2026

605 WEST ST

ISMAY, MT 59336
3
Beds
1.5
Baths
1,355 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.
0.48 ac
Lot SizeThe size of the land the home sits on, from county records.
1910
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$766K
$502K low$1M high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$249 (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.$20,510 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$14,487
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$20,510

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.Ranch
CountyCUSTER
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.1950
Lot (acres)The size of the land the home sits on, from county records.0.48
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.Gravity
CoolingThe type of cooling or air conditioning in the home.Yes
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.Porch · 144 ft²

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

E
Riverview School
Elementary · Grades KG–8 · 28.9 mi
H
Custer County District High SchoolC-
High · Grades 9–12 · 50.3 mi

District: Custer County High School District

Neighborhood · ZIP 59336These 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.111
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 100.20

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.81%
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.11%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.8%
PopulationHow many people live in this area.679
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.1 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$71,508
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$92,847
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.60%

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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

605 West 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 more than 77% of homes in Custer County
  • Costs more per square foot than 74% of homes in Custer County
  • Bigger than 65% of homes in Custer County
  • Has a smaller lot than 80% of homes in Ismay 59336
  • Older than 90% of homes in Ismay 59336

What homes are worth in Ismay 59336

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

This home
$528K$1M

This home is worth more than 61% of homes in Ismay 59336.

How it measures up in Ismay 59336

The dot is this home. The mark in the middle is the typical home in Ismay 59336.

Estimated value$766,343
CheaperTypical $716,349Pricier

Pricier than 61% of homes nearby

Price per ft²$566
CheaperTypical $553Pricier

Pricier than 53% of homes nearby

Living area1,355 ft²
SmallerTypical 1,248 ft²Bigger

Bigger than 59% of homes nearby

Lot size0.48 ac
SmallerTypical 320 acBigger

Bigger than 20% of homes nearby

Year built1910
OlderTypical 1974Newer

Newer than 10% of homes nearby

How 605 West St ranks against every home in each area.
MeasureThis homeIsmay 59336Custer County
Estimated valuepricier than$766,34361% of homes77% of homes
Price per ft²pricier than$56653% of homes74% of homes
Living areabigger than1,355 ft²59% of homes65% of homes
Lot sizebigger than0.48 ac20% of homes74% of homes
Year builtnewer than191010% of homes13% of homes

About 605 West St

How much is 605 West St, Ismay, MT worth?

The TopHap Estimate for 605 West St, Ismay, MT is $766,343 as of Oct 21, 2026. The likely range is $502,188 to $1,030,498. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 605 West St, Ismay, MT last sell?

605 West St, Ismay, MT last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 605 West St, Ismay, MT?

605 West St, Ismay, MT has 3 bedrooms, 1.5 bathrooms, 1,355 square feet of living space and a 0.48-acre lot.

When was 605 West St, Ismay, MT built?

605 West St, Ismay, MT was built in 1910, making it 116 years old. It is a ranch home. The building has 1 story.

What schools serve 605 West St, Ismay, MT?

605 West St, Ismay, MT is assigned to Riverview School (elementary); Custer County District High School (high), rated C-. All sit in Custer County High School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 605 West St, Ismay, MT compare to other homes in Ismay 59336?

Among the 152 homes in Ismay 59336, it is worth more than 61% of them ($766,343 against a typical $716,349), its price per square foot is higher than 53% of them ($566 against a typical $553), it is bigger than 59% of them (1,355 ft² against a typical 1,248 ft²), its lot is bigger than 20% of them (0.48 ac against a typical 320 ac) and it is newer than 10% of them (1910 against a typical 1974). Measured against all of Custer County, it is worth more than 77% 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 605 West St, Ismay, MT?

The 2026 property tax bill for 605 West St, Ismay, MT was $249. The county assessed it at $20,510.

More homes on West St

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Assigned schools

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