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Quadplex (4 Units, Any Combination)Residential

431 MAHON ST

GLASGOW, MT 59230
8
Beds
4
Baths
2,496 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.
1978
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,048 (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.$151,200 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$36,749
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$114,451
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$151,200
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$151,200

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.32
72
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
49
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
41
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.39 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.34%
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
CountyVALLEY
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.0.50
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
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.

M
Glasgow Middle SchoolC-
Middle · Grades 6–8 · 1.1 mi
E
Irle Elementary SchoolD+
Elementary · Grades PK–5 · 1.1 mi
H
Glasgow High SchoolC-
High · Grades 9–12 · 1.6 mi

District: Glasgow K-12 Schools

Neighborhood · ZIP 59230These 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.107
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.99
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.50

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.77%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.18%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.12%
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.5,288
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$65,674
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$75,608
Average tempThe average temperature here across a full year.42°F
Annual precipHow much rain and melted snow falls here in a typical year.12 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.62%

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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

431 Mahon 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 95% of homes in Glasgow 59230
  • Has a bigger lot than 71% of homes in Glasgow 59230
  • Newer than 87% of homes in Glasgow 59230

How it measures up in Glasgow 59230

The dot is this home. The mark in the middle is the typical home in Glasgow 59230.

Living area2,496 ft²
SmallerTypical 1,172 ft²Bigger

Bigger than 95% of homes nearby

Lot size0.5 ac
SmallerTypical 0.19 acBigger

Bigger than 71% of homes nearby

Year built1978
OlderTypical 1961Newer

Newer than 87% of homes nearby

How 431 Mahon St ranks against every home in each area.
MeasureThis homeGlasgow 59230Valley County
Living areabigger than2,496 ft²95% of homes95% of homes
Lot sizebigger than0.5 ac71% of homes59% of homes
Year builtnewer than197887% of homes81% of homes

About 431 Mahon St

When did 431 Mahon St, Glasgow, MT last sell?

431 Mahon St, Glasgow, MT last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 431 Mahon St, Glasgow, MT?

431 Mahon St, Glasgow, MT has 8 bedrooms, 4 bathrooms, 2,496 square feet of living space and a 0.50-acre lot.

When was 431 Mahon St, Glasgow, MT built?

431 Mahon St, Glasgow, MT was built in 1978, making it 48 years old. It is a quadraplex home. The building has 1 story.

What schools serve 431 Mahon St, Glasgow, MT?

431 Mahon St, Glasgow, MT is assigned to Glasgow Middle School (middle), rated C-; Irle Elementary School (elementary), rated D+; Glasgow High School (high), rated C-. All sit in Glasgow K-12 Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 431 Mahon St, Glasgow, MT compare to other homes in Glasgow 59230?

Among the 3,378 homes in Glasgow 59230, it is bigger than 95% of them (2,496 ft² against a typical 1,172 ft²), its lot is bigger than 71% of them (0.5 ac against a typical 0.19 ac) and it is newer than 87% of them (1978 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 431 Mahon St, Glasgow, MT?

The 2026 property tax bill for 431 Mahon St, Glasgow, MT was $3,048. The county assessed it at $151,200.

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