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Single Family ResidenceResidential
$201,313$262 / 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 90How 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

321 8TH AVE SW

SIDNEY, MT 59270
4
Beds
1
Baths
768 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.
0.18 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.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$201K
$182K low$221K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$789 (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.$136,700 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$128,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$136,700

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.10 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
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.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Conventional
CountyRICHLAND
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.1980
Lot (acres)The size of the land the home sits on, from county records.0.18
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.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.Garage, Detached
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 · 108 ft²

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

E
West Side Elementary SchoolB-
Elementary · Grades PK–2 · 0.2 mi
M
Sidney Middle SchoolC
Middle · Grades 6–8 · 0.4 mi
H
Sidney High SchoolC+
High · Grades 9–12 · 0.8 mi

District: Sidney Elementary School District

Neighborhood · ZIP 59270These 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.113
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.95
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.24

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.87%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.8.4%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.7%
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.8,470
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.9 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$65,873
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$91,213
Average tempThe average temperature here across a full year.42°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.61%

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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

321 8th Ave Sw 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 80% of homes in Sidney 59270
  • Costs more per square foot than 75% of homes in Sidney 59270
  • Smaller than 92% of homes in Sidney 59270
  • Has a smaller lot than 76% of homes in Richland County
  • Older than 79% of homes in Sidney 59270

What homes are worth in Sidney 59270

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

This home
$139K$570K

This home is worth more than 20% of homes in Sidney 59270.

How it measures up in Sidney 59270

The dot is this home. The mark in the middle is the typical home in Sidney 59270.

Estimated value$201,313
CheaperTypical $250,464Pricier

Pricier than 20% of homes nearby

Price per ft²$262
CheaperTypical $202Pricier

Pricier than 75% of homes nearby

Living area768 ft²
SmallerTypical 1,256 ft²Bigger

Bigger than 8% of homes nearby

Lot size0.18 ac
SmallerTypical 0.25 acBigger

Bigger than 31% of homes nearby

Year built1940
OlderTypical 1975Newer

Newer than 21% of homes nearby

How 321 8th Ave Sw ranks against every home in each area.
MeasureThis homeSidney 59270Richland County
Estimated valuepricier than$201,31320% of homes20% of homes
Price per ft²pricier than$26275% of homes69% of homes
Living areabigger than768 ft²8% of homes8% of homes
Lot sizebigger than0.18 ac31% of homes24% of homes
Year builtnewer than194021% of homes23% of homes

About 321 8th Ave Sw

How much is 321 8th Ave Sw, Sidney, MT worth?

The TopHap Estimate for 321 8th Ave Sw, Sidney, MT is $201,313 as of Sep 24, 2026. The likely range is $181,918 to $220,708. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 321 8th Ave Sw, Sidney, MT last sell?

321 8th Ave Sw, Sidney, MT last sold on Sep 20, 2002, according to the county's recorded deed.

How big is 321 8th Ave Sw, Sidney, MT?

321 8th Ave Sw, Sidney, MT has 4 bedrooms, 1 bathrooms, 768 square feet of living space and a 0.18-acre lot.

When was 321 8th Ave Sw, Sidney, MT built?

321 8th Ave Sw, Sidney, MT was built in 1940, making it 86 years old. It is a conventional home. The building has 1 story.

What schools serve 321 8th Ave Sw, Sidney, MT?

321 8th Ave Sw, Sidney, MT is assigned to West Side Elementary School (elementary), rated B-; Sidney Middle School (middle), rated C; Sidney High School (high), rated C+. All sit in Sidney Elementary School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 321 8th Ave Sw, Sidney, MT compare to other homes in Sidney 59270?

Among the 3,383 homes in Sidney 59270, it is worth more than 20% of them ($201,313 against a typical $250,464), its price per square foot is higher than 75% of them ($262 against a typical $202), it is bigger than 8% of them (768 ft² against a typical 1,256 ft²), its lot is bigger than 31% of them (0.18 ac against a typical 0.25 ac) and it is newer than 21% of them (1940 against a typical 1975). Measured against all of Richland County, it is worth more than 20% 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 321 8th Ave Sw, Sidney, MT?

The 2026 property tax bill for 321 8th Ave Sw, Sidney, MT was $789. The county assessed it at $136,700.

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