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Rural ResidenceResidential
$237,138$208 / 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 88How 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

105 WALNUT ST

BUFFALO GAP, SD 57722
1
Baths
1,139 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.
0.41 ac
Lot SizeThe size of the land the home sits on, from county records.
1880
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$237K
$209K low$265K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,224 (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.$86,172 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$7,320
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$78,852
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$86,172
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$67,491

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.12 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.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.Rural Residence
CountyCUSTER
Lot (acres)The size of the land the home sits on, from county records.0.41
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.Wood
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 · 160 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.

H
Hot Springs High School - 01D
High · Grades 9–12 · 9.5 mi
M
Hot Springs Middle School - 06B-
Middle · Grades 6–8 · 9.5 mi
E
Hot Springs Elementary - 02C
Elementary · Grades PK–5 · 9.7 mi

District: Hot Springs School District 23-2

Neighborhood · ZIP 57722These 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.135
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.99
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.37

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.90%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.8.2%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.57%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.7%
PopulationHow many people live in this area.1,346
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$46,504
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$72,682
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.18 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

105 Walnut 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 95% of homes in Custer County
  • Costs less per square foot than 93% of homes in Custer County
  • Smaller than 70% of homes in Custer County
  • Has a smaller lot than 76% of homes in Custer County
  • Among the oldest homes in Custer County

What homes are worth in Buffalo Gap 57722

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

This home
$115K$1.7M

This home is worth more than 18% of homes in Buffalo Gap 57722.

How it measures up in Buffalo Gap 57722

The dot is this home. The mark in the middle is the typical home in Buffalo Gap 57722.

Estimated value$237,138
CheaperTypical $383,263Pricier

Pricier than 18% of homes nearby

Price per ft²$208
CheaperTypical $329Pricier

Pricier than 25% of homes nearby

Living area1,139 ft²
SmallerTypical 1,266 ft²Bigger

Bigger than 37% of homes nearby

Lot size0.41 ac
SmallerTypical 0.82 acBigger

Bigger than 35% of homes nearby

Year built1880
OlderTypical 1979Newer

Older than almost all homes nearby

How 105 Walnut St ranks against every home in each area.
MeasureThis homeBuffalo Gap 57722Custer County
Estimated valuepricier than$237,13818% of homes5% of homes
Price per ft²pricier than$20825% of homes7% of homes
Living areabigger than1,139 ft²37% of homes30% of homes
Lot sizebigger than0.41 ac35% of homes24% of homes
Year builtnewer than1880almost no homesalmost no homes

About 105 Walnut St

How much is 105 Walnut St, Buffalo Gap, SD worth?

The TopHap Estimate for 105 Walnut St, Buffalo Gap, SD is $237,138 as of Aug 30, 2026. The likely range is $208,958 to $265,318. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 105 Walnut St, Buffalo Gap, SD last sell?

105 Walnut St, Buffalo Gap, SD last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 105 Walnut St, Buffalo Gap, SD?

105 Walnut St, Buffalo Gap, SD has 1 bathrooms, 1,139 square feet of living space and a 0.41-acre lot.

When was 105 Walnut St, Buffalo Gap, SD built?

105 Walnut St, Buffalo Gap, SD was built in 1880, making it 146 years old. The building has 1 story.

What schools serve 105 Walnut St, Buffalo Gap, SD?

105 Walnut St, Buffalo Gap, SD is assigned to Hot Springs High School - 01 (high), rated D; Hot Springs Middle School - 06 (middle), rated B-; Hot Springs Elementary - 02 (elementary), rated C. All sit in Hot Springs School District 23-2. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 105 Walnut St, Buffalo Gap, SD compare to other homes in Buffalo Gap 57722?

Among the 202 homes in Buffalo Gap 57722, it is worth more than 18% of them ($237,138 against a typical $383,263), its price per square foot is higher than 25% of them ($208 against a typical $329), it is bigger than 37% of them (1,139 ft² against a typical 1,266 ft²), its lot is bigger than 35% of them (0.41 ac against a typical 0.82 ac) and it is newer than almost none of them (1880 against a typical 1979). Measured against all of Custer County, it is worth more than 5% 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 105 Walnut St, Buffalo Gap, SD?

The 2025 property tax bill for 105 Walnut St, Buffalo Gap, SD was $1,224. The county assessed it at $86,172.

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