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Single Family ResidenceResidential
$354,900$359 / 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 95How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026

421 DIAMOND RIDGE BLVD

RAPID CITY, SD 57703
4
Beds
2
Baths
988 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.
0.15 ac
Lot SizeThe size of the land the home sits on, from county records.
1
StoriesHow many floors the home has above ground.

Valuation

$355K
$336K low$374K high
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$354,900
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$283,920

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,859 (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.$352,300 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$60,300
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$292,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$352,300

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.0.15
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Patio · 22 ft²Porch · 66 ft²

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

M
East Middle School
Middle · Grades 6–8 · 1.4 mi
E
Valley View Elementary SchoolC
Elementary · Grades KG–5 · 1.4 mi
H
Central High SchoolD
High · Grades 9–12 · 3.2 mi

District: Rapid City Area Schools

Neighborhood · ZIP 57703These 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.84
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.103
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.31

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.16%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.8.4%
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.17,921
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.140 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$80,839
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$89,305
Average tempThe average temperature here across a full year.47°F
Annual precipHow much rain and melted snow falls here in a typical year.16 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.63%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.No

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

421 Diamond Ridge Blvd 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.

  • Costs more per square foot than 75% of homes in Rapid City 57703
  • Smaller than 79% of homes in Rapid City 57703
  • Has a smaller lot than 92% of homes in Rapid City 57703

What homes are worth in Rapid City 57703

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

This home
$242K$721K

This home is worth more than 47% of homes in Rapid City 57703.

How it measures up in Rapid City 57703

The dot is this home. The mark in the middle is the typical home in Rapid City 57703.

Estimated value$354,900
CheaperTypical $359,782Pricier

Pricier than 47% of homes nearby

Price per ft²$359
CheaperTypical $328Pricier

Pricier than 75% of homes nearby

Living area988 ft²
SmallerTypical 1,269 ft²Bigger

Bigger than 21% of homes nearby

Lot size0.15 ac
SmallerTypical 0.24 acBigger

Bigger than 8% of homes nearby

How 421 Diamond Ridge Blvd ranks against every home in each area.
MeasureThis homeRapid City 57703Pennington County
Estimated valuepricier than$354,90047% of homes47% of homes
Price per ft²pricier than$35975% of homes73% of homes
Living areabigger than988 ft²21% of homes23% of homes
Lot sizebigger than0.15 ac8% of homes14% of homes

About 421 Diamond Ridge Blvd

How much is 421 Diamond Ridge Blvd, Rapid City, SD worth?

The TopHap Estimate for 421 Diamond Ridge Blvd, Rapid City, SD is $354,900 as of Jul 14, 2026. The likely range is $335,824 to $373,976. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is 421 Diamond Ridge Blvd, Rapid City, SD?

421 Diamond Ridge Blvd, Rapid City, SD has 4 bedrooms, 2 bathrooms, 988 square feet of living space and a 0.15-acre lot.

What schools serve 421 Diamond Ridge Blvd, Rapid City, SD?

421 Diamond Ridge Blvd, Rapid City, SD is assigned to East Middle School (middle); Valley View Elementary School (elementary), rated C; Central High School (high), rated D. All sit in Rapid City Area Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 421 Diamond Ridge Blvd, Rapid City, SD compare to other homes in Rapid City 57703?

Among the 7,177 homes in Rapid City 57703, it is worth more than 47% of them ($354,900 against a typical $359,782), its price per square foot is higher than 75% of them ($359 against a typical $328), it is bigger than 21% of them (988 ft² against a typical 1,269 ft²) and its lot is bigger than 8% of them (0.15 ac against a typical 0.24 ac). Measured against all of Pennington County, it is worth more than 47% 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 421 Diamond Ridge Blvd, Rapid City, SD?

The 2025 property tax bill for 421 Diamond Ridge Blvd, Rapid City, SD was $3,859. The county assessed it at $352,300.

More homes on Diamond Ridge Blvd

Closest homes

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Assigned schools

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