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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5 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
    Unincorporated, so closings report under Rapid City and Meade County rather than a Black Hawk median. Lot size and outbuildings move the price more than the street does.
    To Ellsworth AFB
    About 30 minutes, the same I-90 run as Summerset just northDriving time and distance, off peak.
    To downtown Rapid City
    About 12 to 15 minutesDriving time and distance, off peak.
    Utility pattern
    Mixed, municipal service in town with well and septic outside it
    School district
    Rapid City Area Schools 51-4 for most addressesAssignment follows the official boundary for the address. Confirm with the district.
  • Typical price
    $340k to $400kMedian sold $367,000. Black Hills MLS, single family, trailing 12 months, as of August 2026. 235 closed sales.
    To Ellsworth AFB
    9 min, 2.3 miDriving time and distance, off peak.
    To downtown Rapid City
    19 min, 10.9 miDriving time and distance, off peak.
    Utility pattern
    City water and sewer inside the limits
    School district
    Douglas School District 51-1Assignment follows the official boundary for the address. Confirm with the district.
  • 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.
  • Typical price
    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.
    To Ellsworth AFB
    22 min, 10.4 miDriving time and distance, off peak.
    To downtown Rapid City
    11 min, 5.2 miDriving time and distance, off peak.
    Utility pattern
    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.
    School 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.
  • Typical price
    Builder inventory sets the level here, and the MLS publishes no Summerset median on its own.
    To Ellsworth AFB
    30 min, 19.2 miDriving time and distance, off peak.
    To downtown Rapid City
    15 min, 10.0 miDriving time and distance, off peak.
    Utility pattern
    Sewer collection is provided by the City of Summerset. Water service varies by address and can include Black Hawk Water User District or Diamond D Water in Sun Valley.
    School district
    Meade 46-1 and Rapid City Area Schools 51-4, split within the cityAssignment follows the official boundary for the address. Confirm with the district.
What changes

Between Spearfish, St. Onge, Keystone

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

Region
SpearfishNorthern Hills and I-90St. OngeNorthern Hills and I-90KeystoneCentral and Southern Hills
County
SpearfishLawrence CountySt. OngeLawrence CountyKeystonePennington County
Jurisdiction
SpearfishNot recorded townwide in this guide. The address decides whether it is city or county ground.St. OngeUnincorporated. No town government. Lawrence County zones the parcels and the Sheriff patrols them.KeystoneIncorporated town of Keystone, with unincorporated Pennington County on the surrounding hillsides.
Corridor
SpearfishI-90St. OngeSD 34, with I-90 seven miles southeast at WhitewoodKeystoneUS 16A
To downtown Rapid City
Spearfish53 min, 47.8 miSt. OngeAbout 44 miles, roughly 48 minutesKeystoneAbout 25 minutes northeast
To Ellsworth AFB
Spearfish68 min, 57.0 miSt. OngeAbout 45 milesKeystoneAbout 40 minutes
Side by side

Spearfish, St. Onge, Keystone

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

Spearfish
Northern Hills and I-90
St. Onge
Northern Hills and I-90
Keystone
Central and Southern Hills

Countydiffers

Spearfish
Lawrence County
St. Onge
Lawrence County
Keystone
Pennington County

Jurisdictiondiffers

City versus county decides who provides service and who inspects the work.
Spearfish
Not recorded townwide in this guide. The address decides whether it is city or county ground.
St. Onge
Unincorporated. No town government. Lawrence County zones the parcels and the Sheriff patrols them.
Keystone
Incorporated town of Keystone, with unincorporated Pennington County on the surrounding hillsides.

Corridordiffers

Spearfish
I-90
St. Onge
SD 34, with I-90 seven miles southeast at Whitewood
Keystone
US 16A

To downtown Rapid Citydiffers

Spearfish
53 min, 47.8 miDriving time and distance, off peak.
St. Onge
About 44 miles, roughly 48 minutesDriving time and distance, off peak.
Keystone
About 25 minutes northeastDriving time and distance, off peak.

To Ellsworth AFBdiffers

Spearfish
68 min, 57.0 miDriving time and distance, off peak.
St. Onge
About 45 milesDistance only. Drive time is not measured for this community, so time it from the parcel.
Keystone
About 40 minutesDriving time and distance, off peak.

Winter drivingdiffers

Spearfish
Chinook winds off the hills are a genuine feature of winter in this corridor.
St. Onge
Highway 34 is state maintained and connects three directions. County and private roads off it are a different conversation.
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.

Housing and lots

Typical pricediffers

Spearfish
$400k to $600kMedian sold $475,000. Mount Rushmore Area MLS, all residential, trailing 12 months, as of August 2026. 199 closed sales.
St. Onge
No figure published. St. Onge is Mount Rushmore Area MLS territory and the current feed covers only the Black Hills MLS, so a zero here would be a gap in the data rather than a fact about the market.
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.

Housing agediffers

Spearfish
Older stock in the middle, edge subdivisions built 1996 to 2023
St. Onge
An 1891 townsite with genuinely old buildings, surrounded by ranch and acreage property of every era.
Keystone
An 1883 mining town, so genuinely old stock alongside newer builds and cabins.

New constructiondiffers

Spearfish
New construction remains active on the edges of town, including areas such as Sky Ridge and other newer developments.
St. Onge
Limited, mostly infill and small projects
Keystone
Limited, mostly infill and small projects

Acreagediffers

Spearfish
Acreage is available around Spearfish, primarily on surrounding Lawrence County ground rather than in the city core.
St. Onge
Acreage parcels are common here
Keystone
Some acreage, mostly platted town lots

Typical lotdiffers

Spearfish
Not recorded townwide in this guide. The recorded plat carries the lot dimensions.
St. Onge
Small townsite lots, with acreage and ranch ground around them.
Keystone
Small and steep in town, larger on the surrounding hillsides outside the limits.

Covenants and HOAdiffers

Covenants are recorded per plat. The title commitment lists what binds the parcel.
Spearfish
Recorded covenants on some plats, none on others
St. Onge
Few plats here carry recorded covenants
Keystone
Few plats here carry recorded covenants

Utilities and rules

Utility patterndiffers

Spearfish
City water and sewer are typical inside city-served areas. Acreage outside the city can use wells, septic systems or other service arrangements, so utilities should be confirmed by address.
St. Onge
Mostly private well and septic
Keystone
Mixed, municipal service in town with well and septic outside it

Waterdiffers

Spearfish
City water inside the Spearfish limits. Acreage outside the limits runs on a private well or a rural water district.Read off the townwide utility pattern in the guide. The service address controls, so confirm the provider before you write an offer.
St. Onge
The Saint Onge Sewer and Water Company serves about 78 connections around the townsite, with a clean compliance record. Parcels outside that system are on private wells. There is no rural water district covering this area.
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.

Sewerdiffers

Spearfish
City sewer inside the Spearfish limits, private septic on acreage outside them.Read off the townwide utility pattern in the guide. The service address controls, so confirm the provider before you write an offer.
St. Onge
The water company's name implies sewer service, but I have not been able to verify from the public record which parcels it reaches. Assume private septic outside the townsite and confirm the rest before closing.
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.

Short term rentalsdiffers

Spearfish
The city studied rules in 2023 and 2024 and maintains an official short term rental page. Verify the current ordinance first.
St. Onge
Unincorporated Lawrence County, so no municipal ordinance applies. Note that unincorporated Lawrence County declined to require a vacation home rental permit, so there is no county permit to obtain either.
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.

Schools

School districtdiffers

Spearfish
Spearfish School District 40-2Assignment follows the official boundary for the address. Confirm with the district.
St. Onge
Spearfish 40-2 at the townsite, with Belle Fourche 09-1 to the north and Meade 46-1 to the east. Parcel specific.Assignment follows the official boundary for the address. Confirm with the district.
Keystone
Hill City School District 51-2Assignment follows the official boundary for the address. Confirm with the district.

Daily errands

Groceriesdiffers

Spearfish
Full-service grocery options in town include Walmart, Safeway and Lueders Food Centers.
St. Onge
Nothing in town. Spearfish is eleven miles southeast and Belle Fourche thirteen northwest.
Keystone
Nothing full service in town. Hill City is the closest small grocery and Rapid City is the real shopping, about 25 minutes northeast.

Healthcarediffers

Spearfish
Monument Health Spearfish Hospital and outpatient clinics are in town.
St. Onge
Monument Health Spearfish Hospital, a 35 bed facility with a 24 hour emergency department, about 18 minutes away.
Keystone
No clinic in town. Monument Health Custer Hospital has a 24 hour emergency department, and Rapid City has the larger hospital.

Recreationdiffers

Spearfish
D.C. Booth Historic National Fish Hatchery, Black Hills State University events, and Terry Peak and Deadwood a short drive south.
St. Onge
Creek bottoms, hay ground and hunting country, with Spearfish Canyon and the northern Hills half an hour away.
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.

Mapped subdivisions

Outlines on filediffers

Spearfish
25 mapped outlines, 13 with a full guideReference outlines from county and city GIS, not surveys. The recorded plat controls.
St. Onge
No recorded subdivision outlines drawn for this community yet.
Keystone
No recorded subdivision outlines drawn for this community yet.

The trade

Housing and patterndiffers

Spearfish
A university town with a walkable middle, growing fast enough that new construction has moved to the edges.
St. Onge
An 1891 French-Canadian railroad townsite that is now a cattle auction crossroads and an acreage corridor.
Keystone
An 1883 mining camp turned tourism town at the gateway to Mount Rushmore, 240 residents and millions of visitors.

What you gaindiffers

Spearfish
A downtown you can walk across, Black Hills State and Spearfish Canyon out the back door, on city water and sewer.
St. Onge
The cheapest ground in the northern Hills that still puts you eleven miles from a hospital and sixteen from three towns.
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.

What you give updiffers

Spearfish
The highest median sold price of the region's higher volume markets at $475,000 across 199 sales, and Rapid City is 53 minutes on the interstate with the Ellsworth gate 68.
St. Onge
A three-way school district split you have to verify per parcel, and no services of any kind in town.
Keystone
A seasonal town with no school, no grocery and no clinic, and a housing stock where half the doors are dark in winter.
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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ComparingSpearfish, St. Onge, Keystone

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