Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$366,731$382 / 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 Sep 24, 2026

906 NELSON AVE

KEYSTONE, SD 57751
3
Beds
2
Baths
960 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.
3,049 ft²
Lot SizeThe size of the land the home sits on, from county records.
2006
Year BuiltThe year the home was originally built, according to county records.

Valuation

$367K
$340K low$393K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,811 (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.$279,600 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$36,500
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$243,100
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$279,600

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.54 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
StyleThe architectural style of the home, such as ranch or colonial.Ranch
CountyPENNINGTON
Lot (acres)The size of the land the home sits on, from county records.0.07
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 · 48 ft²

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

M
Southwest Middle SchoolA+
Middle · Grades 6–8 · 11.5 mi
H
Stevens High SchoolB+
High · Grades 9–12 · 13.3 mi
E
Wilson Elementary SchoolC-
Elementary · Grades KG–5 · 14.5 mi

District: Rapid City Area Schools

Neighborhood · ZIP 57751These 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.109
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 100.39

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.78%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.25%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.6%
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.794
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.$111,312
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$130,793
Average tempThe average temperature here across a full year.46°F
Annual precipHow much rain and melted snow falls here in a typical year.20 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

906 Nelson Ave 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 84% of homes in Keystone 57751
  • Costs more per square foot than 77% of homes in Pennington County
  • Smaller than 84% of homes in Keystone 57751
  • Among the smallest lots in Keystone 57751
  • Newer than 82% of homes in Pennington County

What homes are worth in Keystone 57751

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

This home
$241K$1.9M

This home is worth more than 16% of homes in Keystone 57751.

How it measures up in Keystone 57751

The dot is this home. The mark in the middle is the typical home in Keystone 57751.

Estimated value$366,731
CheaperTypical $641,188Pricier

Pricier than 16% of homes nearby

Price per ft²$382
CheaperTypical $443Pricier

Pricier than 35% of homes nearby

Living area960 ft²
SmallerTypical 1,600 ft²Bigger

Bigger than 16% of homes nearby

Lot size3,049 ft²
SmallerTypical 3.18 acBigger

Smaller than almost all homes nearby

Year built2006
OlderTypical 1996Newer

Newer than 74% of homes nearby

How 906 Nelson Ave ranks against every home in each area.
MeasureThis homeKeystone 57751Pennington County
Estimated valuepricier than$366,73116% of homes48% of homes
Price per ft²pricier than$38235% of homes77% of homes
Living areabigger than960 ft²16% of homes20% of homes
Lot sizebigger than3,049 ft²almost no homesalmost no homes
Year builtnewer than200674% of homes82% of homes

About 906 Nelson Ave

How much is 906 Nelson Ave, Keystone, SD worth?

The TopHap Estimate for 906 Nelson Ave, Keystone, SD is $366,731 as of Sep 24, 2026. The likely range is $340,052 to $393,410. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 906 Nelson Ave, Keystone, SD last sell?

906 Nelson Ave, Keystone, SD last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 906 Nelson Ave, Keystone, SD?

906 Nelson Ave, Keystone, SD has 3 bedrooms, 2 bathrooms, 960 square feet of living space and a 0.07-acre lot.

When was 906 Nelson Ave, Keystone, SD built?

906 Nelson Ave, Keystone, SD was built in 2006, making it 20 years old. It is a ranch home.

What schools serve 906 Nelson Ave, Keystone, SD?

906 Nelson Ave, Keystone, SD is assigned to Southwest Middle School (middle), rated A+; Stevens High School (high), rated B+; Wilson Elementary School (elementary), rated C-. All sit in Rapid City Area Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 906 Nelson Ave, Keystone, SD compare to other homes in Keystone 57751?

Among the 447 homes in Keystone 57751, it is worth more than 16% of them ($366,731 against a typical $641,188), its price per square foot is higher than 35% of them ($382 against a typical $443), it is bigger than 16% of them (960 ft² against a typical 1,600 ft²), its lot is bigger than almost none of them (3,049 ft² against a typical 3.18 ac) and it is newer than 74% of them (2006 against a typical 1996). Measured against all of Pennington County, it is worth more than 48% 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 906 Nelson Ave, Keystone, SD?

The 2025 property tax bill for 906 Nelson Ave, Keystone, SD was $2,811. The county assessed it at $279,600.

More homes on Nelson Ave

Closest homes

More homes in Keystone 57751

Assigned schools

Explore the area

See this home in context

Open 906 Nelson Ave 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