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TownhouseResidential
$637,599$387 / 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 94How 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

4520 PORTRUSH RD

RAPID CITY, SD 57702
4
Beds
2 / 1
Baths
1,646 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.
2006
Year BuiltThe year the home was originally built, according to county records.

Valuation

$638K
$597K low$679K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$7,242 (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.$662,400 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$70,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$592,400
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$662,400

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Townhouse
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.0.17
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
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 606 ft²Patio · 776 ft²Porch · 54 ft²

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

E
Corral Drive Elementary SchoolA
Elementary · Grades KG–5 · 1.7 mi
M
Southwest Middle SchoolA+
Middle · Grades 6–8 · 1.8 mi
H
Stevens High SchoolB+
High · Grades 9–12 · 4.0 mi

District: Rapid City Area Schools

Neighborhood · ZIP 57702These 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.86
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.105
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.34

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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.27%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.5.5%
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.42,356
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.141 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$84,353
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$115,376
Average tempThe average temperature here across a full year.43°F
Annual precipHow much rain and melted snow falls here in a typical year.22 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

4520 Portrush 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 85% of homes in Pennington County
  • Costs more per square foot than 79% of homes in Pennington County
  • Bigger than 66% of homes in Pennington County
  • Has a smaller lot than 84% of homes in Rapid City 57702
  • Newer than 87% of homes in Rapid City 57702

What homes are worth in Rapid City 57702

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

This home
$216K$1.5M

This home is worth more than 73% of homes in Rapid City 57702.

How it measures up in Rapid City 57702

The dot is this home. The mark in the middle is the typical home in Rapid City 57702.

Estimated value$637,599
CheaperTypical $473,574Pricier

Pricier than 73% of homes nearby

Price per ft²$387
CheaperTypical $344Pricier

Pricier than 69% of homes nearby

Living area1,646 ft²
SmallerTypical 1,420 ft²Bigger

Bigger than 63% of homes nearby

Lot size0.17 ac
SmallerTypical 0.33 acBigger

Bigger than 16% of homes nearby

Year built2006
OlderTypical 1978Newer

Newer than 87% of homes nearby

How 4520 Portrush Rd ranks against every home in each area.
MeasureThis homeRapid City 57702Pennington County
Estimated valuepricier than$637,59973% of homes85% of homes
Price per ft²pricier than$38769% of homes79% of homes
Living areabigger than1,646 ft²63% of homes66% of homes
Lot sizebigger than0.17 ac16% of homes21% of homes
Year builtnewer than200687% of homes82% of homes

About 4520 Portrush Rd

How much is 4520 Portrush Rd, Rapid City, SD worth?

The TopHap Estimate for 4520 Portrush Rd, Rapid City, SD is $637,599 as of Sep 24, 2026. The likely range is $596,548 to $678,650. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4520 Portrush Rd, Rapid City, SD last sell?

4520 Portrush Rd, Rapid City, SD last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 4520 Portrush Rd, Rapid City, SD?

4520 Portrush Rd, Rapid City, SD has 4 bedrooms, 2 bathrooms, 1,646 square feet of living space and a 0.17-acre lot.

When was 4520 Portrush Rd, Rapid City, SD built?

4520 Portrush Rd, Rapid City, SD was built in 2006, making it 20 years old. It is a ranch home.

What schools serve 4520 Portrush Rd, Rapid City, SD?

4520 Portrush Rd, Rapid City, SD is assigned to Corral Drive Elementary School (elementary), rated A; Southwest Middle School (middle), rated A+; Stevens High School (high), rated B+. All sit in Rapid City Area Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4520 Portrush Rd, Rapid City, SD compare to other homes in Rapid City 57702?

Among the 12,953 homes in Rapid City 57702, it is worth more than 73% of them ($637,599 against a typical $473,574), its price per square foot is higher than 69% of them ($387 against a typical $344), it is bigger than 63% of them (1,646 ft² against a typical 1,420 ft²), its lot is bigger than 16% of them (0.17 ac against a typical 0.33 ac) and it is newer than 87% of them (2006 against a typical 1978). Measured against all of Pennington County, it is worth more than 85% 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 4520 Portrush Rd, Rapid City, SD?

The 2025 property tax bill for 4520 Portrush Rd, Rapid City, SD was $7,242. The county assessed it at $662,400.

More homes on Portrush Rd

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