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Single Family ResidenceResidential
$348,405$204 / 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 Oct 21, 2026

321 15TH AVE SW

SIDNEY, MT 59270
3
Beds
2
Baths
1,706 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.
0.51 ac
Lot SizeThe size of the land the home sits on, from county records.
2009
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
3
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$348K
$314K low$383K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,209 (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.$383,000 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$357,902
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$383,000

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.8 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
Lot (acres)The size of the land the home sits on, from county records.0.51
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.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Central
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 · 57 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 School
Elementary · Grades PK–2 · 0.3 mi
M
Sidney Middle SchoolB+
Middle · Grades 6–8 · 0.8 mi
H
Sidney High SchoolB-
High · Grades 9–12 · 1.1 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 15th 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 more than 84% of homes in Sidney 59270
  • Bigger than 79% of homes in Sidney 59270
  • Has a bigger lot than 67% of homes in Sidney 59270
  • Newer than 83% 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
$136K$584K

This home is worth more than 84% 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$348,405
CheaperTypical $242,780Pricier

Pricier than 84% of homes nearby

Price per ft²$204
CheaperTypical $188Pricier

Pricier than 60% of homes nearby

Living area1,706 ft²
SmallerTypical 1,248 ft²Bigger

Bigger than 79% of homes nearby

Lot size0.51 ac
SmallerTypical 0.24 acBigger

Bigger than 67% of homes nearby

Year built2009
OlderTypical 1975Newer

Newer than 83% of homes nearby

How 321 15th Ave Sw ranks against every home in each area.
MeasureThis homeSidney 59270Richland County
Estimated valuepricier than$348,40584% of homes74% of homes
Price per ft²pricier than$20460% of homes55% of homes
Living areabigger than1,706 ft²79% of homes78% of homes
Lot sizebigger than0.51 ac67% of homes60% of homes
Year builtnewer than200983% of homes82% of homes

About 321 15th Ave Sw

How much is 321 15th Ave Sw, Sidney, MT worth?

The TopHap Estimate for 321 15th Ave Sw, Sidney, MT is $348,405 as of Oct 21, 2026. The likely range is $314,306 to $382,504. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 321 15th Ave Sw, Sidney, MT last sell?

321 15th Ave Sw, Sidney, MT last sold on Mar 18, 2009, according to the county's recorded deed.

How big is 321 15th Ave Sw, Sidney, MT?

321 15th Ave Sw, Sidney, MT has 3 bedrooms, 2 bathrooms, 1,706 square feet of living space and a 0.51-acre lot.

When was 321 15th Ave Sw, Sidney, MT built?

321 15th Ave Sw, Sidney, MT was built in 2009, making it 17 years old. It is a conventional home. The building has 1 story.

What schools serve 321 15th Ave Sw, Sidney, MT?

321 15th Ave Sw, Sidney, MT is assigned to West Side Elementary School (elementary); Sidney Middle School (middle), rated B+; Sidney High School (high), rated B-. All sit in Sidney Elementary School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 321 15th Ave Sw, Sidney, MT compare to other homes in Sidney 59270?

Among the 3,383 homes in Sidney 59270, it is worth more than 84% of them ($348,405 against a typical $242,780), its price per square foot is higher than 60% of them ($204 against a typical $188), it is bigger than 79% of them (1,706 ft² against a typical 1,248 ft²), its lot is bigger than 67% of them (0.51 ac against a typical 0.24 ac) and it is newer than 83% of them (2009 against a typical 1975). Measured against all of Richland County, it is worth more than 74% 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 15th Ave Sw, Sidney, MT?

The 2026 property tax bill for 321 15th Ave Sw, Sidney, MT was $2,209. The county assessed it at $383,000.

More homes on 15th Ave Sw

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Assigned schools

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