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Single Family ResidenceResidential
$635,345$321 / 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 Aug 30, 2026

15031 RIVERSIDE RD

BUFFALO GAP, SD 57722
3
Baths
1,980 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.
595.4 ac
Lot SizeThe size of the land the home sits on, from county records.
2002
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
3
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$635K
$574K low$696K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,505 (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.$209,309 (2026)
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$209,309
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$542,786
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$455,262

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.Single Family Residence
CountyCUSTER
Lot (acres)The size of the land the home sits on, from county records.595.40
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
FireplaceWhether the home has a fireplace, and what kind.Yes
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

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

E
Hermosa Elementary - 04B-
Elementary · Grades PK–6 · 24.6 mi
H
Custer High School - 01C+
High · Grades 9–12 · 32.2 mi

District: Custer School District 16-1

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

15031 Riverside Rd 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 80% of homes in Buffalo Gap 57722
  • Costs less per square foot than 66% of homes in Custer County
  • Bigger than 86% of homes in Buffalo Gap 57722
  • Among the largest lots in Custer County
  • Newer than 76% of homes in Buffalo Gap 57722

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 80% 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$635,345
CheaperTypical $383,263Pricier

Pricier than 80% of homes nearby

Price per ft²$321
CheaperTypical $329Pricier

Pricier than 49% of homes nearby

Living area1,980 ft²
SmallerTypical 1,266 ft²Bigger

Bigger than 86% of homes nearby

Lot size595.4 ac
SmallerTypical 0.82 acBigger

Bigger than almost all homes nearby

Year built2002
OlderTypical 1979Newer

Newer than 76% of homes nearby

How 15031 Riverside Rd ranks against every home in each area.
MeasureThis homeBuffalo Gap 57722Custer County
Estimated valuepricier than$635,34580% of homes61% of homes
Price per ft²pricier than$32149% of homes34% of homes
Living areabigger than1,980 ft²86% of homes80% of homes
Lot sizebigger than595.4 acalmost all homesalmost all homes
Year builtnewer than200276% of homes57% of homes

About 15031 Riverside Rd

How much is 15031 Riverside Rd, Buffalo Gap, SD worth?

The TopHap Estimate for 15031 Riverside Rd, Buffalo Gap, SD is $635,345 as of Aug 30, 2026. The likely range is $574,470 to $696,220. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 15031 Riverside Rd, Buffalo Gap, SD last sell?

15031 Riverside Rd, Buffalo Gap, SD last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 15031 Riverside Rd, Buffalo Gap, SD?

15031 Riverside Rd, Buffalo Gap, SD has 3 bathrooms, 1,980 square feet of living space and a 595.40-acre lot.

When was 15031 Riverside Rd, Buffalo Gap, SD built?

15031 Riverside Rd, Buffalo Gap, SD was built in 2002, making it 24 years old. The building has 1 story.

What schools serve 15031 Riverside Rd, Buffalo Gap, SD?

15031 Riverside Rd, Buffalo Gap, SD is assigned to Hermosa Elementary - 04 (elementary), rated B-; Custer High School - 01 (high), rated C+. All sit in Custer School District 16-1. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 15031 Riverside Rd, Buffalo Gap, SD compare to other homes in Buffalo Gap 57722?

Among the 202 homes in Buffalo Gap 57722, it is worth more than 80% of them ($635,345 against a typical $383,263), its price per square foot is higher than 49% of them ($321 against a typical $329), it is bigger than 86% of them (1,980 ft² against a typical 1,266 ft²), its lot is bigger than almost all of them (595.4 ac against a typical 0.82 ac) and it is newer than 76% of them (2002 against a typical 1979). Measured against all of Custer County, it is worth more than 61% 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 15031 Riverside Rd, Buffalo Gap, SD?

The 2025 property tax bill for 15031 Riverside Rd, Buffalo Gap, SD was $3,505. The county assessed it at $209,309.

More homes on Riverside Rd

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More homes in Buffalo Gap 57722

Assigned schools

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