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Single Family ResidenceResidential
$385,940$166 / 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

309 15TH AVE SW

SIDNEY, MT 59270
4
Beds
3
Baths
2,330 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.
0.34 ac
Lot SizeThe size of the land the home sits on, from county records.
2014
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$386K
$348K low$423K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,581 (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.$435,800 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$384,100
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$435,800

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.Ranch
CountyRICHLAND
Lot (acres)The size of the land the home sits on, from county records.0.34
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
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.Deck · 168 ft²Porch · 230 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

309 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 85% of homes in Sidney 59270
  • Costs less per square foot than 75% of homes in Richland County
  • Bigger than 94% of homes in Sidney 59270
  • Newer than 95% 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$583K

This home is worth more than 85% 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$385,940
CheaperTypical $250,860Pricier

Pricier than 85% of homes nearby

Price per ft²$166
CheaperTypical $202Pricier

Pricier than 27% of homes nearby

Living area2,330 ft²
SmallerTypical 1,256 ft²Bigger

Bigger than 94% of homes nearby

Lot size0.34 ac
SmallerTypical 0.24 acBigger

Bigger than 61% of homes nearby

Year built2014
OlderTypical 1975Newer

Newer than 95% of homes nearby

How 309 15th Ave Sw ranks against every home in each area.
MeasureThis homeSidney 59270Richland County
Estimated valuepricier than$385,94085% of homes76% of homes
Price per ft²pricier than$16627% of homes25% of homes
Living areabigger than2,330 ft²94% of homes94% of homes
Lot sizebigger than0.34 ac61% of homes54% of homes
Year builtnewer than201495% of homes95% of homes

About 309 15th Ave Sw

How much is 309 15th Ave Sw, Sidney, MT worth?

The TopHap Estimate for 309 15th Ave Sw, Sidney, MT is $385,940 as of Sep 24, 2026. The likely range is $348,439 to $423,441. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 309 15th Ave Sw, Sidney, MT last sell?

309 15th Ave Sw, Sidney, MT last sold on May 27, 2009, according to the county's recorded deed.

How big is 309 15th Ave Sw, Sidney, MT?

309 15th Ave Sw, Sidney, MT has 4 bedrooms, 3 bathrooms, 2,330 square feet of living space and a 0.34-acre lot.

When was 309 15th Ave Sw, Sidney, MT built?

309 15th Ave Sw, Sidney, MT was built in 2014, making it 12 years old. It is a ranch home. The building has 1 story.

What schools serve 309 15th Ave Sw, Sidney, MT?

309 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 309 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 85% of them ($385,940 against a typical $250,860), its price per square foot is higher than 27% of them ($166 against a typical $202), it is bigger than 94% of them (2,330 ft² against a typical 1,256 ft²), its lot is bigger than 61% of them (0.34 ac against a typical 0.24 ac) and it is newer than 95% of them (2014 against a typical 1975). Measured against all of Richland County, it is worth more than 76% 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 309 15th Ave Sw, Sidney, MT?

The 2026 property tax bill for 309 15th Ave Sw, Sidney, MT was $2,581. The county assessed it at $435,800.

More homes on 15th Ave Sw

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Assigned schools

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