County profile · Illinois
Clark County, IL market data
Population, household spending and competition for 56 business types in Clark County, each scored against other counties.
- Population, 2025
- 15,114
- −2.2% since 2020
- Households
- 6,555
- Median household income
- $72,927
- +29.0% vs. 2015–2019, before inflation
- Median home value
- $132,400
- Jobs located here
- 4,292
- Highest market score
- 66
- Doctors, dentists and clinics, #475 of 2,394 scored counties
A site report maps the competitors on map listings around any address in Clark County by name and distance, and the households and spending within reach. Or open the report at the center of Clark 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 15,114 people live in Clark County, in 6,555 households. Population estimates put the population change in Clark County from 2020 to 2025 at −2.2%, against +3.1% for the U.S. The median household income in Clark County is $72,927 a year, 10% below the U.S. median of $80,734. That rose 29.0% from the 2015–2019 survey, before inflation.
Set against the U.S., households in Clark County spend the most on vehicle maintenance and repairs (an index of 121, where 100 is the U.S. average) and the least on child care and other personal services (60).
The highest Groundwork market scores in Clark County are for medical and dental practices (66); auto repair and car care businesses (55); and clothing, shoe and laundry businesses (54). Clark County ranks #475 of 2,394 scored counties for medical and dental practices.
For its number of households, Clark County has the most map listings, relative to the U.S., for pizza places (91% above the U.S. rate) and the fewest for medical and dental practices (49% below the U.S. rate).
All 56 business types in Clark County
Highest Groundwork market score first. Each score compares Clark County with other counties for that business type, from 0 to 100. 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 | Score | Rank among counties | Listings | Per 10k households | Spending per listing | Spending per listing vs. U.S. (100) | Official establishments |
|---|---|---|---|---|---|---|---|
| Doctors, dentists and clinics | 66 | #475 of 2,394 | 28 | 42.7 | $312K | 205 | 8 |
| Auto repair and car care | 55 | #1,012 of 2,401 | 32 | 48.8 | $238K | 89 | 5 |
| Clothing, shoes and laundry | 54 | #933 of 2,210 | 8 | 12.2 | $1.5M | 171 | Under 3 |
| Real estate agents and brokers | 51 | #977 of 2,176 | 6 | 9.2 | Index only | 268 | Under 3 |
| Real estate | 49 | #1,112 of 2,229 | 8 | 12.2 | Index only | 253 | Under 3 |
| Home repair trades | 43 | #1,364 of 2,057 | 8 | 12.2 | $2.1M | 86 | 8 |
| Hair salons | 43 | #1,514 of 2,339 | 14 | 21.4 | $437K | 102 | Under 3 |
| Grocery and convenience stores | 39 | #1,633 of 2,402 | 15 | 22.9 | $2.6M | 75 | Under 3 |
| Auto repair shops | 39 | #1,701 of 2,378 | 20 | 30.5 | $381K | 86 | Under 3 |
| Salons, barbers and spas | 36 | #1,901 of 2,385 | 28 | 42.7 | $219K | 103 | Under 3 |
| Convenience stores | 35 | #1,644 of 2,261 | 8 | 12.2 | $4.8M | 61 | Under 3 |
| Bakeries and dessert shops | 34 | #1,514 of 1,889 | 8 | 12.2 | $3M | 72 | 3 |
| Gyms, studios and classes | 33 | #1,700 of 2,088 | 9 | 13.7 | $564K | 85 | Under 3 |
| Gas stations | 33 | #1,856 of 2,358 | 12 | 18.3 | $1.6M | 69 | 11 |
| Coffee shops and cafes | 32 | #1,695 of 2,063 | 10 | 15.3 | $2.4M | 64 | 3 |
| Pet businesses | 30 | #1,859 of 2,200 | 8 | 12.2 | $642K | 73 | 5 |
| Collision repair and body shops | 28 | #1,145 of 1,327 | 5 | 7.6 | $1.5M | 49 | Under 3 |
| Sit-down restaurants | 26 | #2,175 of 2,405 | 42 | 64.1 | $567K | 85 | 14 |
| Spas and skin care | 25 | #1,639 of 1,769 | 9 | 13.7 | $681K | 78 | Under 3 |
| Restaurants and cafes | 24 | #2,211 of 2,405 | 80 | 122.0 | $298K | 80 | 33 |
| Gyms | 22 | #1,641 of 1,792 | 7 | 10.7 | $725K | 56 | Under 3 |
| Fast food and sandwich shops | 22 | #2,018 of 2,222 | 13 | 19.8 | $1.8M | 60 | 15 |
| Pizza | 20 | #2,011 of 2,090 | 10 | 15.3 | $2.4M | 47 | 15 |
| Funeral homes | 17 | #1,428 of 1,472 | 5 | 7.6 | $195K | 29 | 3 |
| Insurance agencies | 13 | #2,214 of 2,272 | 16 | 24.4 | $747K | 59 | 11 |
| Veterinarians | 12 | #1,458 of 1,485 | 5 | 7.6 | $1M | 38 | 5 |
| Car washes and detailing | Not scored | Not scored | 4 | 6.1 | $1.9M | 76 | Under 3 |
| Chiropractors | Not scored | Not scored | 4 | 6.1 | $2.2M | 91 | Under 3 |
| Clothing and shoe stores | Not scored | Not scored | 4 | 6.1 | $3M | 237 | Under 3 |
| Dentists and orthodontists | Not scored | Not scored | 4 | 6.1 | $2.2M | 222 | 3 |
| Primary care and pediatrics | Not scored | Not scored | 4 | 6.1 | $2.2M | 123 | Under 3 |
| Barbershops | Not scored | Not scored | 3 | 4.6 | $2M | 108 | Under 3 |
| Electricians | Not scored | Not scored | 3 | 4.6 | $5.6M | 47 | 3 |
| Grocery stores | Not scored | Not scored | 3 | 4.6 | $12.8M | 137 | Under 3 |
| HVAC and plumbing | Not scored | Not scored | 3 | 4.6 | $5.6M | 118 | 5 |
| Tire shops | Not scored | Not scored | 3 | 4.6 | $2.5M | 101 | Under 3 |
| Child care and preschools | Not scored | Not scored | 2 | 3.1 | $1.1M | Too few | 6 |
| Landscaping and lawn care | Not scored | Not scored | 2 | 3.1 | $3.8M | Too few | 3 |
| Lawn, cleaning and pest control | Not scored | Not scored | 2 | 3.1 | $3.8M | Too few | 3 |
| Martial arts and dance studios | Not scored | Not scored | 2 | 3.1 | $2.5M | Too few | Under 3 |
| Physical therapy | Not scored | Not scored | 2 | 3.1 | $4.4M | Too few | 5 |
| Roofing and gutters | Not scored | Not scored | 2 | 3.1 | $8.4M | Too few | Under 3 |
| Laundromats | Not scored | Not scored | 1 | 1.5 | $12.1M | Too few | Under 3 |
| Mortgage brokers and lenders | Not scored | Not scored | 1 | 1.5 | Index only | Too few | Under 3 |
| Nail salons | Not scored | Not scored | 1 | 1.5 | $6.1M | Too few | Under 3 |
| Optometrists and eye care | Not scored | Not scored | 1 | 1.5 | $8.7M | Too few | Under 3 |
| Pet grooming and boarding | Not scored | Not scored | 1 | 1.5 | $5.1M | Too few | Under 3 |
| Pet stores | Not scored | Not scored | 1 | 1.5 | $5.1M | Too few | Under 3 |
| Property management | Not scored | Not scored | 1 | 1.5 | Index only | Too few | Under 3 |
| Dry cleaners | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| Home inspectors | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| House cleaning | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| Oil change and quick lube | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| Pest control | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| Urgent care and walk-in clinics | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
| Yoga, Pilates and fitness studios | Not scored | Not scored | 0 | 0.0 | None listed | None listed | Under 3 |
Household spending in Clark 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 | $7.6M | $1,163 | 121 |
| Gasoline and other fuels | $19.6M | $2,991 | 115 |
| Food away from home | $23.8M | $3,632 | 89 |
| Groceries | $38.3M | $5,842 | 92 |
| Personal care products and services | $6.1M | $934 | 93 |
| Child care and other personal services | $2.3M | $346 | 60 |
| Memberships, classes and admissions | $5.1M | $775 | 79 |
| Medical and dental services | $8.7M | $1,335 | 104 |
| Pets | $5.1M | $784 | 86 |
| Clothing, shoes and related services | $12.1M | $1,840 | 90 |
| Vehicle insurance | $12M | $1,823 | 93 |
| Home repairs, maintenance and insurance | $16.8M | $2,561 | 85 |
| Lawn care, cleaning and other household services | $7.6M | $1,161 | 82 |
| Rent and homeowner costs | $87.8M | $13,395 | 80 |
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 Clark County
- Population, 2025 estimate
- 15,114−2.2% since 2020
- Households
- 6,555
- Median age
- 42.8
- Homes lived in by their owners
- 80%
- Vehicles per household
- 2.0
- Land area
- 501 sq. mi.
- People per square mile
- 30
- Median household income
- $72,927+29.0% vs. 2015–2019, before inflation
- Average household income
- $87,731
- Median home value
- $132,400
- Jobs located here
- 4,292
- Daytime population
- 13,525Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Clark 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 Clark 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 Illinois 8
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- Crawford County, IL18,511 people
- Cumberland County, IL10,334 people
- Coles County, IL46,777 people
- Jasper County, IL9,180 people
- Douglas County, IL19,751 people
- Lawrence County, IL15,031 people
- Effingham County, IL34,522 people
Questions
How fast is Clark County, IL growing?
Population estimates put Clark County at 15,114 people in 2025, down 2.2% since 2020, against +3.1% for the U.S. It has 6,555 households. Against the 2015–2019 survey, median household income rose 29.0%, before inflation.
How much do households in Clark County, IL spend?
Households in Clark County spend about $87.8M a year on rent and homeowner costs, $38.3M on groceries and $23.8M on food away from home. Relative to the U.S., household spending in Clark County runs highest on vehicle maintenance and repairs (an index of 121, where 100 is the U.S. average) and lowest on child care and other personal services (60).
Which business types have the highest market scores in Clark County, IL?
Of the business types scored in Clark County, medical and dental practices (66); auto repair and car care businesses (55); and clothing, shoe and laundry businesses (54) have the highest Groundwork market scores. For medical and dental practices, that ranks #475 of 2,394 scored counties.
How does Clark County, IL compare with the U.S.?
Median household income in Clark County is $72,927, 10% below the U.S. median of $80,734. The population fell 2.2% from 2020 to 2025, against +3.1% for the U.S. The median home value is $132,400, against $332,700 for the U.S. Against the U.S., map listings per household run highest for pizza places (91% above the U.S. rate) and lowest 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. 26 of the 56 business types have a score in Clark County, each ranked against other counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Clark 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.
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Screening a site or an acquisition in Clark 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 Clark 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.