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Single Family ResidenceResidential
$349,707$374 / 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 71How 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

5720 KEY LN

BLACK HAWK, SD 57718
3
Beds
1
Baths
936 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.
3,920 ft²
Lot SizeThe size of the land the home sits on, from county records.
1957
Year BuiltThe year the home was originally built, according to county records.

Valuation

$350K
$249K low$450K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,212 (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.$121,900 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$29,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$92,700
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$121,900

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.87 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
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.0.09
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.Patio · 201 ft²Porch · 201 ft²

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

E
Black Hawk Elementary SchoolD-
Elementary · Grades KG–5 · 1.1 mi
H
Stevens High SchoolB+
High · Grades 9–12 · 4.6 mi
M
West Middle SchoolC
Middle · Grades 6–8 · 4.7 mi

District: Rapid City Area Schools

Neighborhood · ZIP 57718These 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.88
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.107
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.97%
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.4.8%
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.5,496
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.304 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$80,804
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$92,657
Average tempThe average temperature here across a full year.45°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%

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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

5720 Key Ln 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 74% of homes in Pennington County
  • Smaller than 88% of homes in Black Hawk 57718
  • Among the smallest lots in Black Hawk 57718
  • Older than 98% of homes in Black Hawk 57718

What homes are worth in Black Hawk 57718

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

This home
$227K$809K

This home is worth more than 45% of homes in Black Hawk 57718.

How it measures up in Black Hawk 57718

The dot is this home. The mark in the middle is the typical home in Black Hawk 57718.

Estimated value$349,707
CheaperTypical $370,390Pricier

Pricier than 45% of homes nearby

Price per ft²$374
CheaperTypical $343Pricier

Pricier than 67% of homes nearby

Living area936 ft²
SmallerTypical 1,280 ft²Bigger

Bigger than 12% of homes nearby

Lot size3,920 ft²
SmallerTypical 0.3 acBigger

Smaller than almost all homes nearby

Year built1957
OlderTypical 1992Newer

Newer than 2% of homes nearby

How 5720 Key Ln ranks against every home in each area.
MeasureThis homeBlack Hawk 57718Pennington County
Estimated valuepricier than$349,70745% of homes42% of homes
Price per ft²pricier than$37467% of homes74% of homes
Living areabigger than936 ft²12% of homes17% of homes
Lot sizebigger than3,920 ft²almost no homes2% of homes
Year builtnewer than19572% of homes20% of homes

About 5720 Key Ln

How much is 5720 Key Ln, Black Hawk, SD worth?

The TopHap Estimate for 5720 Key Ln, Black Hawk, SD is $349,707 as of Sep 24, 2026. The likely range is $248,948 to $450,466. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 5720 Key Ln, Black Hawk, SD last sell?

5720 Key Ln, Black Hawk, SD last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 5720 Key Ln, Black Hawk, SD?

5720 Key Ln, Black Hawk, SD has 3 bedrooms, 1 bathrooms, 936 square feet of living space and a 0.09-acre lot.

When was 5720 Key Ln, Black Hawk, SD built?

5720 Key Ln, Black Hawk, SD was built in 1957, making it 69 years old. It is a ranch home.

What schools serve 5720 Key Ln, Black Hawk, SD?

5720 Key Ln, Black Hawk, SD is assigned to Black Hawk Elementary School (elementary), rated D-; Stevens High School (high), rated B+; West Middle School (middle), rated C. All sit in Rapid City Area Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 5720 Key Ln, Black Hawk, SD compare to other homes in Black Hawk 57718?

Among the 2,707 homes in Black Hawk 57718, it is worth more than 45% of them ($349,707 against a typical $370,390), its price per square foot is higher than 67% of them ($374 against a typical $343), it is bigger than 12% of them (936 ft² against a typical 1,280 ft²), its lot is bigger than almost none of them (3,920 ft² against a typical 0.3 ac) and it is newer than 2% of them (1957 against a typical 1992). Measured against all of Pennington County, it is worth more than 42% 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 5720 Key Ln, Black Hawk, SD?

The 2025 property tax bill for 5720 Key Ln, Black Hawk, SD was $1,212. The county assessed it at $121,900.

More homes on Key Ln

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Assigned schools

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