Henry Roy Real Estate, Ascend Realty, Rapid City South Dakota
Relocation

Compare Black Hills Communities

25 towns and unincorporated communities. Pick two to four and the full table appears underneath. Commutes are driving times to the Ellsworth main gate and downtown Rapid City. Median sold prices, where we have them, come from the MLS over the trailing twelve months with the source, window and sale count printed under each figure. Typical price bands are practical search ranges, not medians, and are labelled separately.

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1 of 25 communities

Price filters only consider communities with a published trailing twelve month median, so towns without one do not appear in a price filter.

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The five facts that decide a shortlist

Rapid City and the Ellsworth corridor

Everything within about twenty five minutes of downtown Rapid City or the Ellsworth main gate, where most of the newer inventory, the shortest commutes and the jurisdiction questions about city versus county service are.

  • Typical price
    $300k to $450kMedian sold $349,950. Black Hills MLS, single family, trailing 12 months, as of August 2026. 706 closed sales.
    To Ellsworth AFB
    24 min, 13.8 miDriving time and distance, off peak.
    To downtown Rapid City
    5 min, 1.5 miDriving time and distance, off peak.
    Utility pattern
    City water and sewer inside the limits
    School district
    Rapid City Area Schools 51-4Assignment follows the official boundary for the address. Confirm with the district.
    4 is the most that fits. Drop one first.Guide
What changes

Between Keystone, Rapid Valley, Box Elder, Custer

The rows below are the ones where these do not read the same. Ordered as the table runs, not by importance.

Region
KeystoneCentral and Southern HillsRapid ValleyRapid City and the Ellsworth corridorBox ElderRapid City and the Ellsworth corridorCusterCentral and Southern Hills
County
KeystonePennington CountyRapid ValleyPennington CountyBox ElderPennington CountyCusterCuster County
Jurisdiction
KeystoneIncorporated town of Keystone, with unincorporated Pennington County on the surrounding hillsides.Rapid ValleyUnincorporated. There is no city government. Pennington County is the governing body, and Rapid City's subdivision rules still apply within three miles of the city limits.Box ElderCity of Box ElderCusterNot recorded townwide in this guide. The address decides whether it is city or county ground.
Corridor
KeystoneUS 16ARapid ValleySD 44 and Elk Vale RoadBox ElderI-90CusterUS-16
To downtown Rapid City
KeystoneAbout 25 minutes northeastRapid Valley11 min, 5.2 miBox Elder19 min, 10.9 miCusterAbout 50 to 60 minutes
To Ellsworth AFB
KeystoneAbout 40 minutesRapid Valley22 min, 10.4 miBox Elder9 min, 2.3 miCusterAbout an hour and ten minutes
Side by side

Keystone, Rapid Valley, Box Elder, Custer

Rows marked as differing are the ones where these do not read alike. Rows without the mark sit on a quiet background because they say the same thing in every column.

Where it sits

Regiondiffers

Keystone
Central and Southern Hills
Rapid Valley
Rapid City and the Ellsworth corridor
Box Elder
Rapid City and the Ellsworth corridor
Custer
Central and Southern Hills

Countydiffers

Keystone
Pennington County
Rapid Valley
Pennington County
Box Elder
Pennington County
Custer
Custer County

Jurisdictiondiffers

City versus county decides who provides service and who inspects the work.
Keystone
Incorporated town of Keystone, with unincorporated Pennington County on the surrounding hillsides.
Rapid Valley
Unincorporated. There is no city government. Pennington County is the governing body, and Rapid City's subdivision rules still apply within three miles of the city limits.
Box Elder
City of Box Elder
Custer
Not recorded townwide in this guide. The address decides whether it is city or county ground.

Corridordiffers

Keystone
US 16A
Rapid Valley
SD 44 and Elk Vale Road
Box Elder
I-90
Custer
US-16

To downtown Rapid Citydiffers

Keystone
About 25 minutes northeastDriving time and distance, off peak.
Rapid Valley
11 min, 5.2 miDriving time and distance, off peak.
Box Elder
19 min, 10.9 miDriving time and distance, off peak.
Custer
About 50 to 60 minutesDriving time and distance, off peak.

To Ellsworth AFBdiffers

Keystone
About 40 minutesDriving time and distance, off peak.
Rapid Valley
22 min, 10.4 miDriving time and distance, off peak.
Box Elder
9 min, 2.3 miDriving time and distance, off peak.
Custer
About an hour and ten minutesDriving time and distance, off peak.

Winter drivingdiffers

Keystone
Black Hills elevation on canyon roads, and a town that empties out for the season. Iron Mountain Road and the scenic routes are not winter commuting roads.
Rapid Valley
Highway 44 and Elk Vale are state and county priorities. Interior subdivision streets are county maintained and clear after the arterials do.
Box Elder
I-90 is state maintained and the city clears the newer plats. Box Elder publishes no plow priority map, so ask a neighbor how the street clears after a real storm.
Custer
Winter roads are a genuine planning factor at this distance, and on acreage you need to know who maintains yours.

Housing and lots

Typical pricediffers

Keystone
About $618,000 average sold, but only 9 sales over 24 monthsAverage sold $618,449. Black Hills MLS, single family, 24 months through August 2026, as of August 2026. 9 closed sales, small sample.
Rapid Valley
About $350,000 average sold, 274 sales over 12 monthsAverage sold $349,971. Black Hills MLS, single family, 12 months through August 2026, as of August 2026. 274 closed sales.
Box Elder
$340k to $400kMedian sold $367,000. Black Hills MLS, single family, trailing 12 months, as of August 2026. 235 closed sales.
Custer
Median sold $627,000Black Hills MLS, single family, trailing 12 months, as of August 2026. 7 closed sales, small sample.

Housing agediffers

Keystone
An 1883 mining town, so genuinely old stock alongside newer builds and cabins.
Rapid Valley
Mostly late twentieth century through current, with active building on the edges.
Box Elder
Heavily new construction since the B-21 announcement
Custer
Mixed ages. Older homes near the core, newer construction toward the edges.

New constructiondiffers

Keystone
Limited, mostly infill and small projects
Rapid Valley
Active, with subdivisions still building
Box Elder
Active, with subdivisions still building
Custer
Not recorded townwide in this guide. Check current permits with the city or county.

Acreagediffers

Keystone
Some acreage, mostly platted town lots
Rapid Valley
Some acreage, mostly platted town lots
Box Elder
Not recorded townwide in this guide. The recorded plat carries the lot size.
Custer
Acreage is common outside the city core, with wells and septic systems typical on many rural properties.

Typical lotdiffers

Keystone
Small and steep in town, larger on the surrounding hillsides outside the limits.
Rapid Valley
Suburban lots through the core, larger parcels toward Reservoir and Radar Hill Roads.
Box Elder
Small city lots, about 0.15 to 0.18 acres in the newer plats
Custer
Not recorded townwide in this guide. The recorded plat carries the lot dimensions.

Covenants and HOAdiffers

Covenants are recorded per plat. The title commitment lists what binds the parcel.
Keystone
Few plats here carry recorded covenants
Rapid Valley
Recorded covenants on some plats, none on others
Box Elder
Not recorded townwide in this guide. Read the recorded documents for the plat.
Custer
Not recorded townwide in this guide. Read the recorded documents for the plat.

Utilities and rules

Utility patterndiffers

Keystone
Mixed, municipal service in town with well and septic outside it
Rapid Valley
Utility service varies by address. Rapid Valley Sanitary District serves portions of the area, while properties outside district service may use private wells and septic systems.
Box Elder
City water and sewer inside the limits
Custer
Mixed, municipal service in town with well and septic outside it

Waterdiffers

Keystone
Town of Keystone municipal water inside the limits, drawn from town wells, with no violations on its current record. Parcels outside the town limits are on private wells.
Rapid Valley
Rapid Valley Sanitary District, treating Rapid Creek water at its own plant, with the ability to buy treated water from Rapid City at peak demand. Parcels outside the district are on private wells.
Box Elder
City of Box Elder municipal
Custer
Municipal water inside the limits, a private well or a district system outside them.Read off the townwide utility pattern in the guide. The service address controls, so confirm the provider before you write an offer.

Sewerdiffers

Keystone
Confirm with the town before you rely on it. The town operates public works, but I have not been able to verify from the public record whether it runs a collection system or which parcels it reaches. Outside the limits, expect private septic.
Rapid Valley
Rapid Valley Sanitary District owns and maintains the collection system, and Rapid City treats the wastewater under an intergovernmental agreement. Parcels outside the district are on private septic.
Box Elder
City of Box Elder municipal
Custer
City sewer inside the limits, private septic outside them.Read off the townwide utility pattern in the guide. The service address controls, so confirm the provider before you write an offer.

Fire protectiondiffers

The responding department and the distance to it both affect an insurance quote.
Keystone
Not recorded townwide in this guide. Confirm the responding department by address.
Rapid Valley
Rapid Valley Volunteer Fire Department, which also provides EMS and wildland response.
Box Elder
Not recorded townwide in this guide. Confirm the responding department by address.
Custer
Not recorded townwide in this guide. Confirm the responding department by address.

Short term rentalsdiffers

Keystone
A 2 percent municipal lodging tax applies to transient stays. Whether a separate short term rental ordinance exists is not clear from the public record, so confirm with the town in writing.
Rapid Valley
Unincorporated Pennington County has no city short-term rental ordinance to comply with, which is not the same as no rules. County zoning and any subdivision covenants still govern, and state licensing applies.
Box Elder
A verify first town for rental plans, with one specific misconception the guide clears up.
Custer
Grandfathered permits are non transferable and expire when the property sells, and the rules flip at the city line.

Schools

School districtdiffers

Keystone
Hill City School District 51-2Assignment follows the official boundary for the address. Confirm with the district.
Rapid Valley
Mostly Rapid City Area School District 51-4, with portions in Douglas 51-1Assignment follows the official boundary for the address. Confirm with the district.
Box Elder
Douglas School District 51-1Assignment follows the official boundary for the address. Confirm with the district.
Custer
Custer School District 16-1Assignment follows the official boundary for the address. Confirm with the district.

Daily errands

Groceriesdiffers

Keystone
Nothing full service in town. Hill City is the closest small grocery and Rapid City is the real shopping, about 25 minutes northeast.
Rapid Valley
Retail and everyday shopping run along Highway 44 on the southern edge, with additional grocery options a few minutes west in Rapid City.
Box Elder
Lynn's Dakotamart is a full-service grocery store in town.
Custer
Lynn's Dakotamart is a full-service grocery store in town.

Healthcarediffers

Keystone
No clinic in town. Monument Health Custer Hospital has a 24 hour emergency department, and Rapid City has the larger hospital.
Rapid Valley
Monument Health Rapid Valley Clinic provides primary and urgent care in the community. Hospital-level care is in Rapid City.
Box Elder
Monument Health Box Elder Clinic provides primary and urgent care in town. Hospital-level care is in Rapid City.
Custer
Monument Health Custer Hospital and clinic are in town.

Recreationdiffers

Keystone
Mount Rushmore is past the town boundary, the 1880 Train runs from the Winter Street depot, and Custer State Park and the Norbeck Scenic Byway are close.
Rapid Valley
Rapid Creek, the county parks east of town, and everything the Hills offer half an hour west.
Box Elder
The Liberty Center, the city park and ballfield network, and the South Dakota Air and Space Museum are the in-town recreation. The Badlands are a day trip, not your neighborhood park.
Custer
Custer State Park at the door, including Sylvan Lake, the Needles Highway, the wildlife loop and the September buffalo roundup.

Mapped subdivisions

Outlines on filediffers

Keystone
No recorded subdivision outlines drawn for this community yet.
Rapid Valley
No recorded subdivision outlines drawn for this community yet.
Box Elder
16 mapped outlines, 3 with a full guideReference outlines from county and city GIS, not surveys. The recorded plat controls.
Custer
No recorded subdivision outlines drawn for this community yet.

The trade

Housing and patterndiffers

Keystone
An 1883 mining camp turned tourism town at the gateway to Mount Rushmore, 240 residents and millions of visitors.
Rapid Valley
The region's largest unincorporated community: suburban streets, high ownership, county government.
Box Elder
A young city building its first downtown at Liberty Plaza on 110 acres, with roughly 800 residential units planned.
Custer
A county seat at a park entrance, with a replacement Monument Health hospital and acreage starting just past the city limits.

What you gaindiffers

Keystone
Nightly rental demand runs about as high as anywhere in the Black Hills, if the rules and the covenants check out for the specific property.
Rapid Valley
Rapid City schools and a five mile commute without Rapid City property taxes, plus a walk-in clinic in the neighborhood.
Box Elder
The Ellsworth main gate is in town, 9 minutes from most addresses, on city water and sewer, with the region's newest housing pipeline.
Custer
You are inside the Hills with real acreage, Custer State Park at the door, and a new hospital in a town of about 1,900.

What you give updiffers

Keystone
A seasonal town with no school, no grocery and no clinic, and a housing stock where half the doors are dark in winter.
Rapid Valley
No city services, a sanitary district bill instead of a city utility bill, and an annexation line that only the parcel record can settle.
Box Elder
Comparable sales run thin inside brand new subdivisions and builder incentives move the effective price without moving the list price. I-90 fills at shift change, and the flight line is close enough that you hear it.
Custer
Rapid City is 50 to 60 minutes and Ellsworth over an hour, grandfathered rental permits expire when a property sells, and outside the city limits there are no county building codes.
Where this comes from

Commute figures are driving times off peak, from the community guide each card links to. Median sold prices come from the MLS, and each figure carries its own source, window and closing count, because Sturgis, Spearfish and the northern hills report through a different MLS than Rapid City. Under five closings there is no median, and the price row says so. Five to nine closings carries a small sample note. School districts follow the official boundary for the address, and the district office is the only place to confirm an assignment. Short term rental lines are summaries. Read the guide and the current ordinance before you count on rental income.

The filters use these definitions: under $400k is the MLS sold figure for the town, a median where one is published and otherwise the average sold, comes in under $400,000; close to ellsworth is 25 minutes or less to the Ellsworth main gate; close to rapid city is 20 minutes or less to downtown Rapid City; short commute is 15 minutes or less to either downtown Rapid City or the Ellsworth gate; new construction available is the guide establishes active or limited new construction; acreage available is acreage is common or present in the guide; city water and sewer is city water and sewer across the community; smaller market is fewer than 100 closed single family sales in the trailing twelve months; more rural is acreage is common, or water and sewer are not municipal throughout; established housing is the guide classifies the housing stock as established, meaning largely pre 2000; newer housing is the guide classifies a meaningful share of the housing stock as 2000s or later.

Every row here is a townwide summary and a single parcel can read differently. Buyer due diligence should include verifying water and sewer service, school assignment, recorded covenants and HOA obligations, rental rules, legal access, insurance availability and which jurisdiction inspects and permits the work, for the exact address. Confirm with the city or county, the utility or district, the school district office, the title company and your insurer as applicable.

Last updated August 2026

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ComparingKeystone, Rapid Valley, Box Elder, Custer

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