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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Under $400k Close to Ellsworth Close to Rapid City Short commute New construction available Acreage available City water and sewer Smaller market More rural Established housing Newer housing Clear filters Clear everything

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What changes

Between Keystone, Buffalo Gap, Rapid Valley

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 HillsBuffalo GapCentral and Southern HillsRapid ValleyRapid City and the Ellsworth corridor
County: KeystonePennington CountyBuffalo GapCuster CountyRapid ValleyPennington County
Jurisdiction: KeystoneIncorporated town of Keystone, with unincorporated Pennington County on the surrounding hillsides.Buffalo GapIncorporated town of Buffalo Gap, with Custer County outside the limits.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.
Corridor: KeystoneUS 16ABuffalo GapSD 79Rapid ValleySD 44 and Elk Vale Road
To downtown Rapid City: KeystoneAbout 25 minutes northeastBuffalo GapAbout 45 miles, roughly 56 minutesRapid Valley11 min, 5.2 mi
To Ellsworth AFB: KeystoneAbout 40 minutesBuffalo GapAbout 55 milesRapid Valley22 min, 10.4 mi

Side by side

Keystone, Buffalo Gap, Rapid Valley

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.

The selected Black Hills communities compared on location, housing, utilities, schools, daily errands, mapped subdivisions and the trade each one asks for
Attribute	Central and Southern HillsKeystone	Central and Southern HillsBuffalo Gap	Rapid City and the Ellsworth corridorRapid Valley
Where it sits
Regiondiffers	Central and Southern Hills	Central and Southern Hills	Rapid City and the Ellsworth corridor
Countydiffers	Pennington County	Custer County	Pennington County
JurisdictiondiffersCity versus county decides who provides service and who inspects the work.	Incorporated town of Keystone, with unincorporated Pennington County on the surrounding hillsides.	Incorporated town of Buffalo Gap, with Custer County outside the limits.	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.
Corridordiffers	US 16A	SD 79	SD 44 and Elk Vale Road
To downtown Rapid Citydiffers	About 25 minutes northeastDriving time and distance, off peak.	About 45 miles, roughly 56 minutesDriving time and distance, off peak.	11 min, 5.2 miDriving time and distance, off peak.
To Ellsworth AFBdiffers	About 40 minutesDriving time and distance, off peak.	About 55 milesDistance only. Drive time is not measured for this community, so time it from the parcel.	22 min, 10.4 miDriving time and distance, off peak.
Winter drivingdiffers	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.	Highway 79 is state maintained and is the connection to Hot Springs and Rapid City. Off it, this is open prairie with blowing snow.	Highway 44 and Elk Vale are state and county priorities. Interior subdivision streets are county maintained and clear after the arterials do.
Housing and lots
Typical pricediffers	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.	One single family sale shows in the Black Hills MLS over 24 months, at $80,000. One closing is a sample of one rather than a price level, so read it that way.	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.
Housing agediffers	An 1883 mining town, so genuinely old stock alongside newer builds and cabins.	An 1885 to 1939 historic core with an aging housing stock and about a fifth of units vacant.	Mostly late twentieth century through current, with active building on the edges.
New constructiondiffers	Limited, mostly infill and small projects	None underway	Active, with subdivisions still building
Acreagediffers	Some acreage, mostly platted town lots	Acreage parcels are common here	Some acreage, mostly platted town lots
Typical lotdiffers	Small and steep in town, larger on the surrounding hillsides outside the limits.	A handful of historic townsite lots, with grassland and ranch ground around them.	Suburban lots through the core, larger parcels toward Reservoir and Radar Hill Roads.
Covenants and HOAdiffersCovenants are recorded per plat. The title commitment lists what binds the parcel.	Few plats here carry recorded covenants	Few plats here carry recorded covenants	Recorded covenants on some plats, none on others
Utilities and rules
Utility patterndiffers	Mixed, municipal service in town with well and septic outside it	Mixed, municipal service in town with well and septic outside it	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.
Waterdiffers	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.	Town of Buffalo Gap municipal water from a single well, serving about 93 connections. Rural parcels are on private wells.	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.
Sewerdiffers	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.	Not documented in the public record. There is no municipal wastewater project or discharge permit on file that I could find. Confirm with the town finance officer before assuming either town sewer or septic.	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.
Fire protectiondiffersThe responding department and the distance to it both affect an insurance quote.	Not recorded townwide in this guide. Confirm the responding department by address.	Not recorded townwide in this guide. Confirm the responding department by address.	Rapid Valley Volunteer Fire Department, which also provides EMS and wildland response.
Short term rentalsdiffers	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.	This is hunting and grassland country rather than a tourism corridor. Demand is seasonal and specific.	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.
Schools
School districtdiffers	Hill City School District 51-2Assignment follows the official boundary for the address. Confirm with the district.	Hot Springs School District 23-2, despite the town being in Custer CountyAssignment follows the official boundary for the address. Confirm with the district.	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.
Daily errands
Groceriesdiffers	Nothing full service in town. Hill City is the closest small grocery and Rapid City is the real shopping, about 25 minutes northeast.	Nothing full service in town. Hot Springs, about 14 miles south, is where errands happen.	Retail and everyday shopping run along Highway 44 on the southern edge, with additional grocery options a few minutes west in Rapid City.
Healthcarediffers	No clinic in town. Monument Health Custer Hospital has a 24 hour emergency department, and Rapid City has the larger hospital.	Fall River Health Services in Hot Springs, a 25 bed critical access hospital with a 24 hour emergency department and a rural health clinic, about 18 minutes away.	Monument Health Rapid Valley Clinic provides primary and urgent care in the community. Hospital-level care is in Rapid City.
Recreationdiffers	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.	Buffalo Gap National Grassland, hunting, rock collecting and OHV country, with the Cheyenne River nearby.	Rapid Creek, the county parks east of town, and everything the Hills offer half an hour west.
The trade
Housing and patterndiffers	An 1883 mining camp turned tourism town at the gateway to Mount Rushmore, 240 residents and millions of visitors.	A nearly intact turn-of-the-century western streetscape on the National Register, mostly quiet, at the gate to the grassland.	The region's largest unincorporated community: suburban streets, high ownership, county government.
What you gaindiffers	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.	Eighteen minutes from the hospital in Hot Springs, with 600,000 acres of grassland out the door and one MLS closing in two years to price from.	Rapid City schools and a five mile commute without Rapid City property taxes, plus a walk-in clinic in the neighborhood.
What you give updiffers	A seasonal town with no school, no grocery and no clinic, and a housing stock where half the doors are dark in winter.	No school, no store and no services in town, an aging water system with an open compliance item, and an undocumented sewer situation.	No city services, a sanitary district bill instead of a city utility bill, and an annexation line that only the parcel record can settle.

Central and Southern HillsKeystone
Central and Southern HillsBuffalo Gap
Rapid City and the Ellsworth corridorRapid Valley

Where it sits

Regiondiffers

Keystone: Central and Southern Hills
Buffalo Gap: Central and Southern Hills
Rapid Valley: Rapid City and the Ellsworth corridor

Countydiffers

Keystone: Pennington County
Buffalo Gap: Custer County
Rapid Valley: Pennington 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.
Buffalo Gap: Incorporated town of Buffalo Gap, with Custer County outside the limits.
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.

Corridordiffers

Keystone: US 16A
Buffalo Gap: SD 79
Rapid Valley: SD 44 and Elk Vale Road

To downtown Rapid Citydiffers

Keystone: About 25 minutes northeastDriving time and distance, off peak.
Buffalo Gap: About 45 miles, roughly 56 minutesDriving time and distance, off peak.
Rapid Valley: 11 min, 5.2 miDriving time and distance, off peak.

To Ellsworth AFBdiffers

Keystone: About 40 minutesDriving time and distance, off peak.
Buffalo Gap: About 55 milesDistance only. Drive time is not measured for this community, so time it from the parcel.
Rapid Valley: 22 min, 10.4 miDriving 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.
Buffalo Gap: Highway 79 is state maintained and is the connection to Hot Springs and Rapid City. Off it, this is open prairie with blowing snow.
Rapid Valley: Highway 44 and Elk Vale are state and county priorities. Interior subdivision streets are county maintained and clear after the arterials do.

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.
Buffalo Gap: One single family sale shows in the Black Hills MLS over 24 months, at $80,000. One closing is a sample of one rather than a price level, so read it that way.
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.

Housing agediffers

Keystone: An 1883 mining town, so genuinely old stock alongside newer builds and cabins.
Buffalo Gap: An 1885 to 1939 historic core with an aging housing stock and about a fifth of units vacant.
Rapid Valley: Mostly late twentieth century through current, with active building on the edges.

New constructiondiffers

Keystone: Limited, mostly infill and small projects
Buffalo Gap: None underway
Rapid Valley: Active, with subdivisions still building

Acreagediffers

Keystone: Some acreage, mostly platted town lots
Buffalo Gap: Acreage parcels are common here
Rapid Valley: Some acreage, mostly platted town lots

Typical lotdiffers

Keystone: Small and steep in town, larger on the surrounding hillsides outside the limits.
Buffalo Gap: A handful of historic townsite lots, with grassland and ranch ground around them.
Rapid Valley: Suburban lots through the core, larger parcels toward Reservoir and Radar Hill Roads.

Covenants and HOAdiffers

Covenants are recorded per plat. The title commitment lists what binds the parcel.

Keystone: Few plats here carry recorded covenants
Buffalo Gap: Few plats here carry recorded covenants
Rapid Valley: Recorded covenants on some plats, none on others

Utilities and rules

Utility patterndiffers

Keystone: Mixed, municipal service in town with well and septic outside it
Buffalo Gap: 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.

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.
Buffalo Gap: Town of Buffalo Gap municipal water from a single well, serving about 93 connections. Rural parcels 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.

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.
Buffalo Gap: Not documented in the public record. There is no municipal wastewater project or discharge permit on file that I could find. Confirm with the town finance officer before assuming either town sewer or 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.

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.
Buffalo Gap: 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.

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.
Buffalo Gap: This is hunting and grassland country rather than a tourism corridor. Demand is seasonal and specific.
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.

Schools

School districtdiffers

Keystone: Hill City School District 51-2Assignment follows the official boundary for the address. Confirm with the district.
Buffalo Gap: Hot Springs School District 23-2, despite the town being in Custer CountyAssignment 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.

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.
Buffalo Gap: Nothing full service in town. Hot Springs, about 14 miles south, is where errands happen.
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.

Healthcarediffers

Keystone: No clinic in town. Monument Health Custer Hospital has a 24 hour emergency department, and Rapid City has the larger hospital.
Buffalo Gap: Fall River Health Services in Hot Springs, a 25 bed critical access hospital with a 24 hour emergency department and a rural health clinic, about 18 minutes away.
Rapid Valley: Monument Health Rapid Valley Clinic provides primary and urgent care in the community. Hospital-level care is in Rapid City.

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.
Buffalo Gap: Buffalo Gap National Grassland, hunting, rock collecting and OHV country, with the Cheyenne River nearby.
Rapid Valley: Rapid Creek, the county parks east of town, and everything the Hills offer half an hour west.

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.
Buffalo Gap: A nearly intact turn-of-the-century western streetscape on the National Register, mostly quiet, at the gate to the grassland.
Rapid Valley: The region's largest unincorporated community: suburban streets, high ownership, county government.

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.
Buffalo Gap: Eighteen minutes from the hospital in Hot Springs, with 600,000 acres of grassland out the door and one MLS closing in two years to price from.
Rapid Valley: Rapid City schools and a five mile commute without Rapid City property taxes, plus a walk-in clinic in the neighborhood.

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.
Buffalo Gap: No school, no store and no services in town, an aging water system with an open compliance item, and an undocumented sewer situation.
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.

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, Buffalo Gap, Rapid Valley

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