Auto · County · Illinois
Gas stations in Clark County, IL
The gas stations in Clark County, IL, the household spending behind them and how the market ranks against other counties.
Groundwork market score · out of 100
Score 33 out of 100: Lower middle
Ranked #1,856 of 2,358 scored counties
#65 of 82 scored counties in Illinois
- Listings
- 12
- 8 chain locations (67%)
- Official establishments
- 11
- Businesses with payroll, 2023
- Household spending a year
- $19.6M
- On gasoline and other fuels · $2,991 a household
- Spending per listing
- $1.6M
- 31% below the U.S.
- Listings per 10k households
- 18.3
- 68% above the U.S.
- Population, 2025
- 15,114
- −2.2% since 2020
See the gas stations around any address in Clark County
The site report maps the gas stations on map listings near the address, by name and distance, and sizes the households and spending around it. 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
Clark County scores 33 (lower middle) on the Groundwork market score for gas stations, ranking #1,856 of 2,358 scored counties and #65 of 82 scored counties in Illinois. That puts it in the bottom quarter of counties.
Map listings as of September 2026 show 12 gas stations in Clark County. Chain locations make up 67% of them, against 84% across the U.S. That is 18.3 per 10,000 households, 68% above the U.S. rate of 10.9.
At $2,991 per household (15% above the U.S. average), households in Clark County spend about $19.6M a year on gasoline and other fuels. That works out to $1.6M per station, 31% below the U.S. figure of $2.4M.
In 2023, official counts showed 11 businesses with payroll in Clark County classed as gasoline stations. That is one for every 596 households, against one for every 1,184 across the U.S. Between 2020 and 2025, the population of Clark County declined 2.2%, against +3.1% for the U.S.
How Clark County compares
The same measures for Illinois and the whole U.S. Spending per listing divides a year of household spending on all gasoline and other fuels by the gas stations counted, so it measures the demand for each competitor, not any business’s revenue. Households per establishment does the same with the official count.
| Measure | Clark County | Illinois | U.S. |
|---|---|---|---|
| Listings per 10k households | 18.3 | 9.2 | 10.9 |
| Spending per listing | $1.6M | $2.6M | $2.4M |
| Households per official establishment | 596 | 1,319 | 1,184 |
| Official establishment growth, 2019–2023 | n/a | +0.4% | −3.1% |
| Population growth, 2020–2025 | −2.2% | −0.6% | +3.1% |
| Spending per household on gasoline and other fuels | $2,991 | $2,409 | $2,595 |
| Median household income | $72,927 | $83,390 | $80,734 |
| Groundwork market score | 33 | 43 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 10 → 11
- Employees, 2023
- 171
- Annual payroll, 2023
- $4.5M
- One-person businesses, 2023
- 0Businesses with no payroll
- Map listings, September 2026
- 128 chain locations
- Listings at the U.S. rate for this spending
- 8The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 0
- Amount
- $0
SBA-backed loans to businesses classed as gasoline stations in Clark County, through June 2026, placed by the borrower’s ZIP code. Official establishments are businesses with payroll; the official counts leave out places with fewer than 3.
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 gas stations on map listings by name and distance.
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 cardGas stations across Illinois
Every Illinois market ranked →The highest-scoring counties in Illinois for gas stations, numbered among those based in Illinois, with Clark County marked.
Top counties in Illinois
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Kendall County, IL | 90 | 35 | 7.7 | $4.1M | +9.9% | #26 of 2,358 |
| 2McHenry County, IL | 80 | 97 | 8.2 | $3.7M | +2.5% | #148 of 2,358 |
| 3Will County, IL | 75 | 249 | 10.2 | $3M | +2.2% | #260 of 2,358 |
| 4Piatt County, IL | 74 | 6 | 8.7 | $3.7M | +0.6% | #288 of 2,358 |
| 5Kane County, IL | 74 | 183 | 9.9 | $3M | +1.8% | #296 of 2,358 |
| 6Monroe County, IL | 71 | 9 | 6.5 | $4.7M | −0.3% | #360 of 2,358 |
| 7Champaign County, IL | 69 | 45 | 5.3 | $4.2M | +1.8% | #420 of 2,358 |
| 8Woodford County, IL | 64 | 11 | 7.5 | $4M | −0.8% | #582 of 2,358 |
| 9DuPage County, IL | 64 | 321 | 9.2 | $2.9M | +0.3% | #591 of 2,358 |
| 10Lake County, IL | 62 | 299 | 11.6 | $2.4M | +0.8% | #667 of 2,358 |
| 65Clark County, IL | 33 | 12 | 18.3 | $1.6M | −2.2% | #1,856 of 2,358 |
Other business types in Clark County
Each with its Groundwork market score here, out of 100, where it has one.
Food and drink
Groceries and convenience
Auto
Beauty and personal care
Fitness and classes
Health care
Child care
Clothing and laundry
Home services
Real estate
Funeral services
Questions
How many gas stations are in Clark County, IL?
There are 12 gas stations on map listings in Clark County as of September 2026. 8 of them (67%) are chain locations. The listings count gas stations. Official counts show 11 businesses with payroll classed as gasoline stations in 2023.
How much do households in Clark County, IL spend on gasoline and other fuels?
About $19.6M a year, or $2,991 per household. That is 15% above the U.S. average (an index of 115, where 100 is the U.S. average). Spread across the 12 gas stations on map listings, it comes to $1.6M per station. It is estimated from the incomes of the 6,555 households in Clark County and national spending patterns by income.
How does Clark County, IL compare with the U.S. for gas stations?
Clark County has 18.3 gas stations per 10,000 households, 68% above the U.S. rate of 10.9. Spending per station is $1.6M, 31% below the U.S. figure of $2.4M. At the national ratio of gas stations to household spending, Clark County would have about 8, against 12 on map listings. There is one business with payroll in the industry for every 596 households, against one for every 1,184 across the U.S.
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. 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.
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. Clark County scores 33 for gas stations (lower middle), #1,856 of 2,358 scored 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 gas stations 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.
How the score works · Top markets for gas stations · All 56 business types in Clark County
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.