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Rural ResidenceResidential
$304,931$279 / 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 93How 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

140 S 9TH ST

CUSTER, SD 57730
3
Beds
2
Baths
1,092 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.
0.43 ac
Lot SizeThe size of the land the home sits on, from county records.
1977
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$305K
$284K low$326K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,270 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$232,700 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$74,876
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$157,824
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$232,700
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$181,311

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.197 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
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.0.2 percent flood zone

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Rural Residence
CountyCUSTER
Lot (acres)The size of the land the home sits on, from county records.0.43
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Baseboard
CoolingThe type of cooling or air conditioning in the home.None
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 · 100 ft²

Transaction History(1)

Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.

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

E
Custer Elementary - 02A-
Elementary · Grades PK–6 · 0.5 mi
H
Custer High School - 01B+
High · Grades 9–12 · 0.6 mi
M
Custer Jr. High - 05B+
Middle · Grades 7–8 · 0.6 mi

District: Custer School District 16-1

Neighborhood · ZIP 57730These 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.146
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.97
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.44

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.81%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.20%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.7%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.6%
PopulationHow many people live in this area.5,941
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.12 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$73,295
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$92,357
Average tempThe average temperature here across a full year.44°F
Annual precipHow much rain and melted snow falls here in a typical year.19 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.63%

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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

140 S 9th 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 87% of homes in Custer County
  • Costs less per square foot than 79% of homes in Custer 57730
  • Smaller than 72% of homes in Custer County
  • Has a smaller lot than 76% of homes in Custer County
  • Older than 72% of homes in Custer County

What homes are worth in Custer 57730

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

This home
$194K$1.7M

This home is worth more than 14% of homes in Custer 57730.

How it measures up in Custer 57730

The dot is this home. The mark in the middle is the typical home in Custer 57730.

Estimated value$304,931
CheaperTypical $543,445Pricier

Pricier than 14% of homes nearby

Price per ft²$279
CheaperTypical $379Pricier

Pricier than 21% of homes nearby

Living area1,092 ft²
SmallerTypical 1,368 ft²Bigger

Bigger than 31% of homes nearby

Lot size0.43 ac
SmallerTypical 2.45 acBigger

Bigger than 26% of homes nearby

Year built1977
OlderTypical 1994Newer

Newer than 34% of homes nearby

How 140 S 9th St ranks against every home in each area.
MeasureThis homeCuster 57730Custer County
Estimated valuepricier than$304,93114% of homes13% of homes
Price per ft²pricier than$27921% of homes22% of homes
Living areabigger than1,092 ft²31% of homes28% of homes
Lot sizebigger than0.43 ac26% of homes24% of homes
Year builtnewer than197734% of homes28% of homes

About 140 S 9th St

How much is 140 S 9th St, Custer, SD worth?

The TopHap Estimate for 140 S 9th St, Custer, SD is $304,931 as of Oct 21, 2026. The likely range is $283,559 to $326,303. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 140 S 9th St, Custer, SD last sell?

140 S 9th St, Custer, SD last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 140 S 9th St, Custer, SD?

140 S 9th St, Custer, SD has 3 bedrooms, 2 bathrooms, 1,092 square feet of living space and a 0.43-acre lot.

When was 140 S 9th St, Custer, SD built?

140 S 9th St, Custer, SD was built in 1977, making it 49 years old. The building has 1 story.

What schools serve 140 S 9th St, Custer, SD?

140 S 9th St, Custer, SD is assigned to Custer Elementary - 02 (elementary), rated A-; Custer High School - 01 (high), rated B+; Custer Jr. High - 05 (middle), rated B+. All sit in Custer School District 16-1. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 140 S 9th St, Custer, SD compare to other homes in Custer 57730?

Among the 3,509 homes in Custer 57730, it is worth more than 14% of them ($304,931 against a typical $543,445), its price per square foot is higher than 21% of them ($279 against a typical $379), it is bigger than 31% of them (1,092 ft² against a typical 1,368 ft²), its lot is bigger than 26% of them (0.43 ac against a typical 2.45 ac) and it is newer than 34% of them (1977 against a typical 1994). Measured against all of Custer County, it is worth more than 13% 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 140 S 9th St, Custer, SD?

The 2025 property tax bill for 140 S 9th St, Custer, SD was $3,270. The county assessed it at $232,700.

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