County profile · South Dakota
Custer County, SD market data
How Custer County compares with other counties for 56 business types: competitors, household spending, official counts and growth.
- Population, 2025
- 9,431
- +13.2% since 2020
- Households
- 4,451
- Median household income
- $84,112
- Median home value
- $372,100
- Jobs located here
- 2,110
- Market scores
- Not scored
- Counties under 10,000 people aren’t given a market score, since a few businesses can swing their figures.
A site report maps the competitors on map listings around any address in Custer County by name and distance, and the households and spending within reach. Or open the report at the center of Custer County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardSurvey estimates 2020–2024 · population estimates 2025 · official business counts 2023 · map listings September 2026 · Data credits · How we measure
What this means
Custer County has an estimated 9,431 people and 4,451 households. Population estimates put the population change in Custer County from 2020 to 2025 at +13.2%, faster than the U.S. (+3.1%). Median household income in Custer County is $84,112, 4% above the U.S. median of $80,734.
Relative to the U.S., household spending in Custer County runs highest on vehicle maintenance and repairs (an index of 147, where 100 is the U.S. average) and lowest on child care and other personal services (74).
Counties under 10,000 people aren’t given a market score, since a few businesses can swing their figures.
Custer County is part of the Rapid City metro area. Against the U.S., map listings per household run highest for grocery and convenience stores (44% above the U.S. rate) and lowest for medical and dental practices (49% below the U.S. rate).
All 56 business types in Custer County
Counties under 10,000 people aren’t given a market score, since a few businesses can swing their figures. Spending per listing divides a whole spending line (all vehicle repairs, all eating out) by one type’s listings: the demand for each competitor, not a business’s revenue. Compare it across markets with its index, where 100 is the U.S. figure for the same type; the real estate types, whose line is all housing costs, show the index only. How the score works.
| Business type | Listings | Per 10k households | Spending per listing | Spending per listing vs. U.S. (100) | Official establishments |
|---|---|---|---|---|---|
| Restaurants and cafes | 54 | 121.3 | $329K | 89 | 28 |
| Sit-down restaurants | 34 | 76.4 | $523K | 79 | 16 |
| Doctors, dentists and clinics | 19 | 42.7 | $339K | 222 | 7 |
| Real estate | 13 | 29.2 | Index only | 113 | 6 |
| Grocery and convenience stores | 12 | 27.0 | $2.3M | 67 | 3 |
| Real estate agents and brokers | 12 | 27.0 | Index only | 97 | 6 |
| Auto repair and car care | 11 | 24.7 | $571K | 213 | 6 |
| Convenience stores | 8 | 18.0 | $3.4M | 43 | Under 3 |
| Gas stations | 8 | 18.0 | $2M | 83 | 6 |
| Salons, barbers and spas | 8 | 18.0 | $565K | 266 | Under 3 |
| Hair salons | 7 | 15.7 | $646K | 150 | Under 3 |
| Insurance agencies | 7 | 15.7 | $1.4M | 108 | 5 |
| Pet businesses | 6 | 13.5 | $650K | 74 | Under 3 |
| Pizza | 6 | 13.5 | $3M | 58 | 6 |
| Bakeries and dessert shops | 5 | 11.2 | $3.6M | 86 | 6 |
| Clothing, shoes and laundry | 5 | 11.2 | $1.8M | 204 | Under 3 |
| Coffee shops and cafes | 5 | 11.2 | $3.6M | 96 | 6 |
| Auto repair shops | 4 | 9.0 | $1.6M | 353 | 5 |
| Gyms, studios and classes | 4 | 9.0 | $1M | 157 | Under 3 |
| Chiropractors | 3 | 6.7 | $2.1M | 90 | Under 3 |
| Fast food and sandwich shops | 3 | 6.7 | $5.9M | 194 | 6 |
| Gyms | 3 | 6.7 | $1.4M | 107 | Under 3 |
| Home repair trades | 3 | 6.7 | $4.1M | 170 | 9 |
| Child care and preschools | 2 | 4.5 | $952K | Too few | Under 3 |
| Clothing and shoe stores | 2 | 4.5 | $4.5M | Too few | Under 3 |
| Dentists and orthodontists | 2 | 4.5 | $3.2M | Too few | Under 3 |
| Grocery stores | 2 | 4.5 | $13.7M | Too few | 3 |
| HVAC and plumbing | 2 | 4.5 | $6.2M | Too few | 6 |
| Landscaping and lawn care | 2 | 4.5 | $2.8M | Too few | 8 |
| Lawn, cleaning and pest control | 2 | 4.5 | $2.8M | Too few | 12 |
| Physical therapy | 2 | 4.5 | $3.2M | Too few | 4 |
| Car washes and detailing | 1 | 2.2 | $6.3M | Too few | Under 3 |
| Collision repair and body shops | 1 | 2.2 | $6.3M | Too few | Under 3 |
| Electricians | 1 | 2.2 | $12.4M | Too few | 3 |
| Funeral homes | 1 | 2.2 | $736K | Too few | Under 3 |
| Laundromats | 1 | 2.2 | $9M | Too few | Under 3 |
| Martial arts and dance studios | 1 | 2.2 | $4.2M | Too few | Under 3 |
| Optometrists and eye care | 1 | 2.2 | $6.4M | Too few | Under 3 |
| Pet grooming and boarding | 1 | 2.2 | $3.9M | Too few | Under 3 |
| Pet stores | 1 | 2.2 | $3.9M | Too few | Under 3 |
| Primary care and pediatrics | 1 | 2.2 | $6.4M | Too few | 3 |
| Property management | 1 | 2.2 | Index only | Too few | Under 3 |
| Spas and skin care | 1 | 2.2 | $4.5M | Too few | Under 3 |
| Veterinarians | 1 | 2.2 | $3.9M | Too few | Under 3 |
| Barbershops | 0 | 0.0 | None listed | None listed | Under 3 |
| Dry cleaners | 0 | 0.0 | None listed | None listed | Under 3 |
| Home inspectors | 0 | 0.0 | None listed | None listed | Under 3 |
| House cleaning | 0 | 0.0 | None listed | None listed | 4 |
| Mortgage brokers and lenders | 0 | 0.0 | None listed | None listed | Under 3 |
| Nail salons | 0 | 0.0 | None listed | None listed | Under 3 |
| Oil change and quick lube | 0 | 0.0 | None listed | None listed | Under 3 |
| Pest control | 0 | 0.0 | None listed | None listed | Under 3 |
| Roofing and gutters | 0 | 0.0 | None listed | None listed | Under 3 |
| Tire shops | 0 | 0.0 | None listed | None listed | Under 3 |
| Urgent care and walk-in clinics | 0 | 0.0 | None listed | None listed | Under 3 |
| Yoga, Pilates and fitness studios | 0 | 0.0 | None listed | None listed | Under 3 |
Household spending in Custer County
What households here spend in a year on each line, in total and per household, with the index against the U.S. average (100).
| Spending line | A year, all households | Per household | Index vs. U.S. (100) |
|---|---|---|---|
| Vehicle maintenance and repairs | $6.3M | $1,411 | 147 |
| Gasoline and other fuels | $15.8M | $3,545 | 137 |
| Food away from home | $17.8M | $3,996 | 98 |
| Groceries | $27.3M | $6,144 | 97 |
| Personal care products and services | $4.5M | $1,016 | 101 |
| Child care and other personal services | $1.9M | $428 | 74 |
| Memberships, classes and admissions | $4.2M | $934 | 95 |
| Medical and dental services | $6.4M | $1,448 | 112 |
| Pets | $3.9M | $876 | 96 |
| Clothing, shoes and related services | $9M | $2,015 | 98 |
| Vehicle insurance | $9.5M | $2,140 | 109 |
| Home repairs, maintenance and insurance | $12.4M | $2,777 | 92 |
| Lawn care, cleaning and other household services | $5.6M | $1,255 | 89 |
| Rent and homeowner costs | $63.8M | $14,323 | 86 |
Household spending is estimated from the incomes of the households in each neighborhood, using what households at each income spent nationally in 2024, adjusted for the region. It counts what residents spend, wherever they spend it.
Population and households in Custer County
- Population, 2025 estimate
- 9,431+13.2% since 2020
- Households
- 4,451
- Median age
- 57.3
- Homes lived in by their owners
- 86%
- Vehicles per household
- 2.4
- Land area
- 1,557 sq. mi.
- People per square mile
- 6
- Median household income
- $84,112
- Average household income
- $110,413
- Median home value
- $372,100
- Jobs located here
- 2,110
- Daytime population
- 7,755Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Custer County?
These figures cover the whole county. A site report draws rings around one address and counts what’s inside them: households, spending, jobs, and the competitors on map listings by name and distance, for any of the 56 business types.
Or open the report at the center of Custer County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardRelated markets
Nearest counties in South Dakota 8
- Fall River County, SD7,258 people
- Pennington County, SD113,512 people
- Meade County, SD30,546 people
- Lawrence County, SD27,233 people
- Oglala Lakota County, SD13,491 people
- Butte County, SD10,676 people
- Jackson County, SD2,802 people
- Bennett County, SD3,345 people
Questions
How fast is Custer County, SD growing?
Population estimates put Custer County at 9,431 people in 2025, up 13.2% since 2020, faster than the U.S. (+3.1%). It has 4,451 households.
How much do households in Custer County, SD spend?
Households in Custer County spend about $63.8M a year on rent and homeowner costs, $27.3M on groceries and $17.8M on food away from home. Set against the U.S., households in Custer County spend the most on vehicle maintenance and repairs (an index of 147, where 100 is the U.S. average) and the least on child care and other personal services (74).
Which business types have the highest market scores in Custer County, SD?
The score leaves out counties under 10,000 people, where a handful of businesses would swing it.
How does Custer County, SD compare with the U.S.?
The median household income in Custer County is $84,112 a year, 4% above the U.S. median of $80,734. The population rose 13.2% from 2020 to 2025, against +3.1% for the U.S. The median home value is $372,100, against $332,700 for the U.S. For its number of households, Custer County has the most map listings, relative to the U.S., for grocery and convenience stores (44% above the U.S. rate) and the fewest for medical and dental practices (49% below the U.S. rate).
What is the Groundwork market score?
The Groundwork market score runs from 0 to 100 and compares a market with others of its kind for one business type: states with states, metro areas with metro areas, small-town markets and counties with their own. It weighs household spending per competitor (35%), households per business with payroll (25%), population growth (20%) and spending power (20%), each ranked against those peers. A higher score means that, taken together, the market has more household spending and more households for each business already there, faster population growth and more spending per household than similar markets. It describes a market, not any one site or deal. Markets with fewer than 5 map listings of the type, and counties under 10,000 people, aren’t scored, since a few businesses can swing their figures.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Custer County. It maps the competitors on map listings near the site and sizes the households and spending within the distance you choose. New accounts get 10 actions over 3 days, no card.
All markets in South Dakota · Every U.S. market · How we measure
Screening a site or an acquisition in Custer County?
A site report maps the competitors on map listings near an address and sizes the households and spending around it.
The button opens the report at the center of Custer County. Signed out, you see a blurred preview; on an account, each report is one action.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Figures are estimates for research only. Not investment or real estate advice.