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Duplex (2 Units, Any Combination)Residential
$409,107$258 / 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 96How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026
Last sold for $400,000 on May 1, 2025

434 WASHINGTON ST

CUSTER, SD 57730
2
Beds
2
Baths
1,584 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.
0.62 ac
Lot SizeThe size of the land the home sits on, from county records.
1930
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$409K
$395K low$424K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$400,000 · May 1, 2025

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,554 (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.$342,444 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$71,199
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$271,245
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$295,681
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$187,028

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.1 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.Duplex (2 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Duplex Single
CountyCUSTER
Lot (acres)The size of the land the home sits on, from county records.0.62
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.Yes
CoolingThe type of cooling or air conditioning in the home.None
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
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.Patio · 60 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 - 02B+
Elementary · Grades PK–6 · 0.8 mi
H
Custer High School - 01C+
High · Grades 9–12 · 0.9 mi
M
Custer Jr. High - 05A-
Middle · Grades 7–8 · 0.9 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%

Owner Tools

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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

434 Washington 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 70% of homes in Custer County
  • Costs less per square foot than 85% of homes in Custer 57730
  • Has a smaller lot than 73% of homes in Custer County
  • Older than 93% 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
$202K$1.6M

This home is worth more than 32% 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$409,107
CheaperTypical $537,502Pricier

Pricier than 32% of homes nearby

Price per ft²$258
CheaperTypical $374Pricier

Pricier than 15% of homes nearby

Living area1,584 ft²
SmallerTypical 1,374 ft²Bigger

Bigger than 62% of homes nearby

Lot size0.62 ac
SmallerTypical 2.5 acBigger

Bigger than 30% of homes nearby

Year built1930
OlderTypical 1994Newer

Newer than 8% of homes nearby

How 434 Washington St ranks against every home in each area.
MeasureThis homeCuster 57730Custer County
Estimated valuepricier than$409,10732% of homes30% of homes
Price per ft²pricier than$25815% of homes16% of homes
Living areabigger than1,584 ft²62% of homes61% of homes
Lot sizebigger than0.62 ac30% of homes27% of homes
Year builtnewer than19308% of homes7% of homes

About 434 Washington St

How much is 434 Washington St, Custer, SD worth?

The TopHap Estimate for 434 Washington St, Custer, SD is $409,107 as of Aug 30, 2026. The likely range is $394,639 to $423,575. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 434 Washington St, Custer, SD last sell?

434 Washington St, Custer, SD last sold on May 1, 2025 for $400,000, according to the county's recorded deed.

How big is 434 Washington St, Custer, SD?

434 Washington St, Custer, SD has 2 bedrooms, 2 bathrooms, 1,584 square feet of living space and a 0.62-acre lot.

When was 434 Washington St, Custer, SD built?

434 Washington St, Custer, SD was built in 1930, making it 96 years old. It is a duplex single home. The building has 1 story.

What schools serve 434 Washington St, Custer, SD?

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

How does 434 Washington St, Custer, SD compare to other homes in Custer 57730?

Among the 3,507 homes in Custer 57730, it is worth more than 32% of them ($409,107 against a typical $537,502), its price per square foot is higher than 15% of them ($258 against a typical $374), it is bigger than 62% of them (1,584 ft² against a typical 1,374 ft²), its lot is bigger than 30% of them (0.62 ac against a typical 2.5 ac) and it is newer than 8% of them (1930 against a typical 1994). Measured against all of Custer County, it is worth more than 30% 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 434 Washington St, Custer, SD?

The 2025 property tax bill for 434 Washington St, Custer, SD was $3,554. The county assessed it at $342,444.

More homes on Washington St

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Assigned schools

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