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Single Family ResidenceResidential
$358,870$367 / 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 88How 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

100B 1ST ST

ALDER, MT 59710
2
Beds
1
Baths
978 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.
0.17 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.
4
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$359K
$314K low$404K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$258 (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.$143,893 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$116,901
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$143,893

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.74 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.34%

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
CountyMADISON
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.1975
Lot (acres)The size of the land the home sits on, from county records.0.17
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.Roll Composition (rolled Mineral Roof)
HeatingThe type of heating system in the home.Floor/Wall Furnace
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.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 · 42 ft²

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

E
Alder School
Elementary · Grades PK–8 · 0.4 mi
H
Sheridan High SchoolD
High · Grades 9–12 · 9.9 mi

District: Alder Elementary School District

Neighborhood · ZIP 59710These 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.74
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.104
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.203

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.85%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.23%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.5%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.5%
PopulationHow many people live in this area.177
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.$70,719
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$85,320
Average tempThe average temperature here across a full year.41°F
Annual precipHow much rain and melted snow falls here in a typical year.13 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.59%

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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

100b 1st 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 94% of homes in Alder 59710
  • Costs less per square foot than 81% of homes in Alder 59710
  • Smaller than 80% of homes in Madison County
  • Has a smaller lot than 95% of homes in Alder 59710
  • Older than 95% of homes in Madison County

What homes are worth in Alder 59710

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

This home
$320K$2.1M

This home is worth more than 6% of homes in Alder 59710.

How it measures up in Alder 59710

The dot is this home. The mark in the middle is the typical home in Alder 59710.

Estimated value$358,870
CheaperTypical $682,386Pricier

Pricier than 6% of homes nearby

Price per ft²$367
CheaperTypical $512Pricier

Pricier than 19% of homes nearby

Living area978 ft²
SmallerTypical 1,335 ft²Bigger

Bigger than 30% of homes nearby

Lot size0.17 ac
SmallerTypical 11.06 acBigger

Bigger than 5% of homes nearby

Year built1910
OlderTypical 1986Newer

Newer than 12% of homes nearby

How 100b 1st St ranks against every home in each area.
MeasureThis homeAlder 59710Madison County
Estimated valuepricier than$358,8706% of homes7% of homes
Price per ft²pricier than$36719% of homes24% of homes
Living areabigger than978 ft²30% of homes20% of homes
Lot sizebigger than0.17 ac5% of homes7% of homes
Year builtnewer than191012% of homes5% of homes

About 100b 1st St

How much is 100b 1st St, Alder, MT worth?

The TopHap Estimate for 100b 1st St, Alder, MT is $358,870 as of Sep 24, 2026. The likely range is $314,017 to $403,723. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 100b 1st St, Alder, MT last sell?

100b 1st St, Alder, MT last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 100b 1st St, Alder, MT?

100b 1st St, Alder, MT has 2 bedrooms, 1 bathrooms, 978 square feet of living space and a 0.17-acre lot.

When was 100b 1st St, Alder, MT built?

100b 1st St, Alder, MT was built in 1910, making it 116 years old. It is a conventional home. The building has 1 story.

What schools serve 100b 1st St, Alder, MT?

100b 1st St, Alder, MT is assigned to Alder School (elementary); Sheridan High School (high), rated D. All sit in Alder Elementary School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 100b 1st St, Alder, MT compare to other homes in Alder 59710?

Among the 236 homes in Alder 59710, it is worth more than 6% of them ($358,870 against a typical $682,386), its price per square foot is higher than 19% of them ($367 against a typical $512), it is bigger than 30% of them (978 ft² against a typical 1,335 ft²), its lot is bigger than 5% of them (0.17 ac against a typical 11.06 ac) and it is newer than 12% of them (1910 against a typical 1986). Measured against all of Madison County, it is worth more than 7% 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 100b 1st St, Alder, MT?

The 2026 property tax bill for 100b 1st St, Alder, MT was $258. The county assessed it at $143,893.

More homes on 100b 1st St

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Assigned schools

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