Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$548,811$187 / 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 87How 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

820 SOUTH ST

RAPID CITY, SD 57701
3
Beds
3
Baths
2,933 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.
0.17 ac
Lot SizeThe size of the land the home sits on, from county records.
1909
Year BuiltThe year the home was originally built, according to county records.

Valuation

$549K
$475K low$622K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,381 (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.$491,700 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$74,600
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$417,100
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$491,700

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.11 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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
CountyPENNINGTON
Lot (acres)The size of the land the home sits on, from county records.0.17
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 · 96 ft²Porch · 24 ft²

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

E
Wilson Elementary SchoolC-
Elementary · Grades KG–5 · 0.5 mi
H
Central High SchoolD
High · Grades 9–12 · 0.8 mi
M
South Middle SchoolD
Middle · Grades 6–8 · 1.3 mi

District: Rapid City Area Schools

Neighborhood · ZIP 57701These 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.129
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.104
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.30

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.94%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.18%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.18%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.5%
PopulationHow many people live in this area.45,780
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.728 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$54,251
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$68,885
Average tempThe average temperature here across a full year.47°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%

Owner Tools

Do you own this home?
Claim this home

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

820 South 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 more than 90% of homes in Rapid City 57701
  • Costs less per square foot than 97% of homes in Pennington County
  • Bigger than 87% of homes in Rapid City 57701
  • Has a smaller lot than 78% of homes in Pennington County
  • Among the oldest homes in Rapid City 57701

What homes are worth in Rapid City 57701

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

This home
$169K$896K

This home is worth more than 90% of homes in Rapid City 57701.

How it measures up in Rapid City 57701

The dot is this home. The mark in the middle is the typical home in Rapid City 57701.

Estimated value$548,811
CheaperTypical $308,397Pricier

Pricier than 90% of homes nearby

Price per ft²$187
CheaperTypical $296Pricier

Pricier than 5% of homes nearby

Living area2,933 ft²
SmallerTypical 1,152 ft²Bigger

Bigger than 87% of homes nearby

Lot size0.17 ac
SmallerTypical 0.19 acBigger

Bigger than 35% of homes nearby

Year built1909
OlderTypical 1973Newer

Older than almost all homes nearby

How 820 South St ranks against every home in each area.
MeasureThis homeRapid City 57701Pennington County
Estimated valuepricier than$548,81190% of homes78% of homes
Price per ft²pricier than$1875% of homes3% of homes
Living areabigger than2,933 ft²87% of homes85% of homes
Lot sizebigger than0.17 ac35% of homes22% of homes
Year builtnewer than1909almost no homesalmost no homes

About 820 South St

How much is 820 South St, Rapid City, SD worth?

The TopHap Estimate for 820 South St, Rapid City, SD is $548,811 as of Oct 21, 2026. The likely range is $475,308 to $622,314. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 820 South St, Rapid City, SD last sell?

820 South St, Rapid City, SD last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 820 South St, Rapid City, SD?

820 South St, Rapid City, SD has 3 bedrooms, 3 bathrooms, 2,933 square feet of living space and a 0.17-acre lot.

When was 820 South St, Rapid City, SD built?

820 South St, Rapid City, SD was built in 1909, making it 117 years old.

What schools serve 820 South St, Rapid City, SD?

820 South St, Rapid City, SD is assigned to Wilson Elementary School (elementary), rated C-; Central High School (high), rated D; South Middle School (middle), rated D. All sit in Rapid City Area Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 820 South St, Rapid City, SD compare to other homes in Rapid City 57701?

Among the 14,096 homes in Rapid City 57701, it is worth more than 90% of them ($548,811 against a typical $308,397), its price per square foot is higher than 5% of them ($187 against a typical $296), it is bigger than 87% of them (2,933 ft² against a typical 1,152 ft²), its lot is bigger than 35% of them (0.17 ac against a typical 0.19 ac) and it is newer than almost none of them (1909 against a typical 1973). Measured against all of Pennington County, it is worth more than 78% 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 820 South St, Rapid City, SD?

The 2025 property tax bill for 820 South St, Rapid City, SD was $5,381. The county assessed it at $491,700.

More homes on South St

Closest homes

More homes in Rapid City 57701

Assigned schools

Explore the area

See this home in context

Open 820 South St on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map