County profile · Idaho
Custer County, ID market data
Population, household spending and competition for 56 business types in Custer County, each scored against other counties.
- Population, 2025
- 4,636
- +8.6% since 2020
- Households
- 1,943
- Median household income
- $67,574
- Median home value
- $381,700
- Jobs located here
- 1,434
- 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
An estimated 4,636 people live in Custer County, in 1,943 households. Population estimates put the population change in Custer County from 2020 to 2025 at +8.6%, faster than the U.S. (+3.1%). The median household income in Custer County is $67,574 a year, 16% below the U.S. median of $80,734.
Set against the U.S., households in Custer County spend the most on vehicle maintenance and repairs (an index of 138, where 100 is the U.S. average) and the least on clothing, shoes and related services (71).
Counties under 10,000 people aren’t given a market score, since a few businesses can swing their figures.
For its number of households, Custer County has the most map listings, relative to the U.S., for gas stations (5.2 times the U.S. rate) and the fewest for restaurants and cafes (83% above 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 | 39 | 200.7 | $156K | 42 | 13 |
| Sit-down restaurants | 25 | 128.7 | $244K | 37 | 8 |
| Gas stations | 11 | 56.6 | $618K | 26 | 7 |
| Grocery and convenience stores | 10 | 51.5 | $1M | 31 | 3 |
| Doctors, dentists and clinics | 9 | 46.3 | $232K | 152 | Under 3 |
| Auto repair and car care | 8 | 41.2 | $322K | 120 | Under 3 |
| Coffee shops and cafes | 6 | 30.9 | $1M | 27 | Under 3 |
| Salons, barbers and spas | 5 | 25.7 | $320K | 150 | Under 3 |
| Convenience stores | 4 | 20.6 | $2.6M | 33 | Under 3 |
| Grocery stores | 4 | 20.6 | $2.6M | 28 | 3 |
| Hair salons | 4 | 20.6 | $399K | 93 | Under 3 |
| Real estate | 4 | 20.6 | Index only | 172 | Under 3 |
| Real estate agents and brokers | 4 | 20.6 | Index only | 137 | Under 3 |
| Gyms, studios and classes | 3 | 15.4 | $468K | 71 | Under 3 |
| Dentists and orthodontists | 2 | 10.3 | $1M | Too few | Under 3 |
| Insurance agencies | 2 | 10.3 | $2.4M | Too few | Under 3 |
| Pizza | 2 | 10.3 | $3M | Too few | 4 |
| Auto repair shops | 1 | 5.1 | $2.6M | Too few | Under 3 |
| Bakeries and dessert shops | 1 | 5.1 | $6.1M | Too few | Under 3 |
| Barbershops | 1 | 5.1 | $1.6M | Too few | Under 3 |
| Car washes and detailing | 1 | 5.1 | $2.6M | Too few | Under 3 |
| Clothing and shoe stores | 1 | 5.1 | $2.8M | Too few | Under 3 |
| Clothing, shoes and laundry | 1 | 5.1 | $2.8M | Too few | Under 3 |
| Fast food and sandwich shops | 1 | 5.1 | $6.1M | Too few | 4 |
| Funeral homes | 1 | 5.1 | $417K | Too few | Under 3 |
| Gyms | 1 | 5.1 | $1.4M | Too few | Under 3 |
| Martial arts and dance studios | 1 | 5.1 | $1.4M | Too few | Under 3 |
| Optometrists and eye care | 1 | 5.1 | $2.1M | Too few | Under 3 |
| Pet businesses | 1 | 5.1 | $1.5M | Too few | Under 3 |
| Physical therapy | 1 | 5.1 | $2.1M | Too few | Under 3 |
| Primary care and pediatrics | 1 | 5.1 | $2.1M | Too few | Under 3 |
| Veterinarians | 1 | 5.1 | $1.5M | Too few | Under 3 |
| Yoga, Pilates and fitness studios | 1 | 5.1 | $1.4M | Too few | Under 3 |
| Child care and preschools | 0 | 0.0 | None listed | None listed | Under 3 |
| Chiropractors | 0 | 0.0 | None listed | None listed | Under 3 |
| Collision repair and body shops | 0 | 0.0 | None listed | None listed | Under 3 |
| Dry cleaners | 0 | 0.0 | None listed | None listed | Under 3 |
| Electricians | 0 | 0.0 | None listed | None listed | 3 |
| Home inspectors | 0 | 0.0 | None listed | None listed | Under 3 |
| Home repair trades | 0 | 0.0 | None listed | None listed | 6 |
| House cleaning | 0 | 0.0 | None listed | None listed | Under 3 |
| HVAC and plumbing | 0 | 0.0 | None listed | None listed | 3 |
| Landscaping and lawn care | 0 | 0.0 | None listed | None listed | Under 3 |
| Laundromats | 0 | 0.0 | None listed | None listed | Under 3 |
| Lawn, cleaning and pest control | 0 | 0.0 | None listed | None listed | Under 3 |
| 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 |
| Pet grooming and boarding | 0 | 0.0 | None listed | None listed | Under 3 |
| Pet stores | 0 | 0.0 | None listed | None listed | Under 3 |
| Property management | 0 | 0.0 | None listed | None listed | Under 3 |
| Roofing and gutters | 0 | 0.0 | None listed | None listed | Under 3 |
| Spas and skin care | 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 |
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 | $2.6M | $1,325 | 138 |
| Gasoline and other fuels | $6.8M | $3,499 | 135 |
| Food away from home | $6.1M | $3,138 | 77 |
| Groceries | $10.4M | $5,349 | 85 |
| Personal care products and services | $1.6M | $822 | 82 |
| Child care and other personal services | $855K | $440 | 76 |
| Memberships, classes and admissions | $1.4M | $723 | 74 |
| Medical and dental services | $2.1M | $1,077 | 84 |
| Pets | $1.5M | $763 | 84 |
| Clothing, shoes and related services | $2.8M | $1,454 | 71 |
| Vehicle insurance | $4.8M | $2,490 | 127 |
| Home repairs, maintenance and insurance | $4.5M | $2,294 | 76 |
| Lawn care, cleaning and other household services | $2.1M | $1,074 | 76 |
| Rent and homeowner costs | $29.8M | $15,351 | 92 |
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
- 4,636+8.6% since 2020
- Households
- 1,943
- Median age
- 58.9
- Homes lived in by their owners
- 77%
- Vehicles per household
- 2.4
- Land area
- 4,922 sq. mi.
- People per square mile
- 1
- Median household income
- $67,574
- Average household income
- $70,154
- Median home value
- $381,700
- Jobs located here
- 1,434
- Daytime population
- 4,494Residents 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 Idaho 8
- Blaine County, ID24,951 people
- Butte County, ID2,684 people
- Lemhi County, ID8,249 people
- Camas County, ID1,124 people
- Lincoln County, ID5,358 people
- Clark County, ID849 people
- Boise County, ID8,273 people
- Gooding County, ID15,931 people
Questions
How fast is Custer County, ID growing?
Population estimates put Custer County at 4,636 people in 2025, up 8.6% since 2020, faster than the U.S. (+3.1%). It has 1,943 households.
How much do households in Custer County, ID spend?
Households in Custer County spend about $29.8M a year on rent and homeowner costs, $10.4M on groceries and $6.8M on gasoline and other fuels. Relative to the U.S., household spending in Custer County runs highest on vehicle maintenance and repairs (an index of 138, where 100 is the U.S. average) and lowest on clothing, shoes and related services (71).
Which business types have the highest market scores in Custer County, ID?
The score leaves out counties under 10,000 people, where a handful of businesses would swing it.
How does Custer County, ID compare with the U.S.?
Median household income in Custer County is $67,574, 16% below the U.S. median of $80,734. The population rose 8.6% from 2020 to 2025, against +3.1% for the U.S. The median home value is $381,700, against $332,700 for the U.S. Against the U.S., map listings per household run highest for gas stations (5.2 times the U.S. rate) and lowest for restaurants and cafes (83% above 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 Idaho · 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.