Food and drink · County · Illinois
Fast food and sandwich shops in St. Clair County, IL
Competitor counts, household spending and official business counts for fast food and sandwich shops in St. Clair County, IL, set against other counties and the U.S.
Groundwork market score · out of 100
Score 42 out of 100: Lower middle
Ranked #1,429 of 2,222 scored counties
#53 of 80 scored counties in Illinois
- Listings
- 142
- 129 chain locations (91%)
- Official establishments
- 209
- All limited-service restaurants · +4.5% since 2019
- Household spending a year
- $392.3M
- On food away from home · $3,890 a household
- Spending per listing
- $2.8M
- 9% below the U.S.
- Listings per 10k households
- 14.1
- 6% above the U.S.
- Population, 2025
- 250,708
- −2.5% since 2020
See the fast food and sandwich shops around any address in St. Clair County
The site report maps the fast food and sandwich shops 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 St. Clair 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
At $3,890 per household (4% below the U.S. average), households in St. Clair County spend about $392.3M a year on food away from home. That works out to $2.8M per shop, 9% below the U.S. figure of $3.1M. The spending figure covers all food away from home, not only fast food and sandwich shops.
St. Clair County has 142 fast food and sandwich shops on map listings as of September 2026. 129 of them (91%) are chain locations, against 79% across the U.S. That comes to 14.1 for every 10,000 households, 6% above the U.S. rate of 13.3.
In 2023, official counts showed 209 businesses with payroll in St. Clair County classed as limited-service restaurants, up 4.5% from 2019. That is one for every 483 households, against one for every 478 across the U.S. That count covers all limited-service restaurants (pizza places included), not only fast food and sandwich shops. Another 50 one-person businesses have no payroll, by official counts. Since fiscal 2022, 10 SBA-backed loans worth $6.3M have gone to businesses classed as limited-service restaurants in St. Clair County.
Population estimates put the population change in St. Clair County from 2020 to 2025 at −2.5%, against +3.1% for the U.S. The Groundwork market score for fast food and sandwich shops in St. Clair County is 42 (lower middle), #1,429 of 2,222 scored counties and #53 of 80 scored counties in Illinois.
How St. Clair County compares
The same measures for Illinois and the whole U.S. Spending per listing divides a year of household spending on all food away from home by the fast food and sandwich shops 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 | St. Clair County | Illinois | U.S. |
|---|---|---|---|
| Listings per 10k households | 14.1 | 13.6 | 13.3 |
| Spending per listing | $2.8M | $3.1M | $3.1M |
| Households per official establishment (all limited-service restaurants) | 483 | 474 | 478 |
| Official establishment growth, 2019–2023 | +4.5% | +2.0% | +6.1% |
| Population growth, 2020–2025 | −2.5% | −0.6% | +3.1% |
| Spending per household on food away from home | $3,890 | $4,215 | $4,070 |
| Median household income | $73,854 | $83,390 | $80,734 |
| Groundwork market score | 42 | 41 |
Official counts and lending
Businesses
- Official establishments, 2019 to 2023
- 200 → 209All limited-service restaurants · +4.5% over the period
- Employees, 2023
- 4,030
- Annual payroll, 2023
- $71.8M
- One-person businesses, 2023
- 50All limited-service restaurants with no payroll
- Map listings, September 2026
- 142129 chain locations
- Listings at the U.S. rate for this spending
- 129The U.S. ratio of listings to household spending, applied here
SBA-backed loans since fiscal 2022
- Loans
- 10
- Amount
- $6.3M
SBA-backed loans to businesses classed as limited-service restaurants in St. Clair 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. These official figures cover all limited-service restaurants, not only fast food and sandwich shops.
Population and households in St. Clair County
- Population, 2025 estimate
- 250,708−2.5% since 2020
- Households
- 100,846
- Median age
- 40.3
- Homes lived in by their owners
- 68%
- Vehicles per household
- 1.8
- Land area
- 658 sq. mi.
- People per square mile
- 386
- Median household income
- $73,854+33.8% vs. 2015–2019, before inflation
- Average household income
- $96,153
- Median home value
- $180,300
- Jobs located here
- 90,959
- Daytime population
- 229,240Residents who don’t work, plus everyone whose job is here
Looking at a specific site in St. Clair 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 fast food and sandwich shops on map listings by name and distance.
Or open the report at the center of St. Clair County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardFast food and sandwich shops across Illinois
Every Illinois market ranked →The highest-scoring counties in Illinois for fast food and sandwich shops, numbered among those based in Illinois, with St. Clair County marked.
Top counties in Illinois
| Market | Score | Listings | Per 10k households | Spending per listing | Population growth | U.S. rank |
|---|---|---|---|---|---|---|
| 1Piatt County, IL | 80 | 7 | 10.1 | $4.2M | +0.6% | #130 of 2,222 |
| 2Woodford County, IL | 79 | 13 | 8.9 | $4.9M | −0.8% | #142 of 2,222 |
| 3Moultrie County, IL | 73 | 5 | 8.6 | $4.3M | −0.8% | #277 of 2,222 |
| 4Bond County, IL | 71 | 5 | 8.1 | $4.5M | +0.6% | #326 of 2,222 |
| 5Kendall County, IL | 71 | 56 | 12.3 | $3.9M | +9.9% | #331 of 2,222 |
| 6McHenry County, IL | 70 | 133 | 11.3 | $4.2M | +2.5% | #355 of 2,222 |
| 7Bureau County, IL | 68 | 12 | 8.6 | $4.3M | −2.1% | #423 of 2,222 |
| 8Monroe County, IL | 68 | 17 | 12.3 | $3.8M | −0.3% | #431 of 2,222 |
| 9Clinton County, IL | 68 | 20 | 13.7 | $3M | +0.6% | #452 of 2,222 |
| 10Macoupin County, IL | 67 | 16 | 9.1 | $4.2M | −2.6% | #465 of 2,222 |
| 53St. Clair County, IL | 42 | 142 | 14.1 | $2.8M | −2.5% | #1,429 of 2,222 |
Other business types in St. Clair County
Each with its Groundwork market score here, out of 100, where it has one.
Food and drink
- Restaurants and cafes51
- Sit-down restaurants52
- Fast food and sandwich shops42
- Pizza43
- Coffee shops and cafes67
- Bakeries and dessert shops68
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 fast food and sandwich shops are in St. Clair County, IL?
Map listings as of September 2026 show 142 fast food and sandwich shops in St. Clair County. 129 of them (91%) are chain locations. The listings count fast food, sandwich shops, delis and bagel shops. Official counts show 209 businesses with payroll classed as limited-service restaurants in 2023, up 4.5% from 2019. The official count takes in all limited-service restaurants, not only fast food and sandwich shops: pizza places are counted too. Official counts list 50 one-person businesses without payroll.
How much do households in St. Clair County, IL spend on food away from home?
About $392.3M a year, or $3,890 per household. That is 4% below the U.S. average (an index of 96, where 100 is the U.S. average). Spread across the 142 fast food and sandwich shops on map listings, it comes to $2.8M per shop. That spending covers all food away from home, which fast food and sandwich shops share with other businesses in the trade. It is estimated from the incomes of the 100,846 households in St. Clair County and national spending patterns by income.
How does St. Clair County, IL compare with the U.S. for fast food and sandwich shops?
St. Clair County has 14.1 fast food and sandwich shops per 10,000 households, 6% above the U.S. rate of 13.3. Spending per shop is $2.8M, 9% below the U.S. figure of $3.1M. At the U.S. ratio of fast food and sandwich shops to household spending, St. Clair County would have about 129, against 142 on map listings. There is one business with payroll in the industry for every 483 households, against one for every 478 across the U.S. The official count rose 4.5% from 2019 to 2023, against +6.1% for the U.S.
How fast is St. Clair County, IL growing?
Population estimates put St. Clair County at 250,708 people in 2025, down 2.5% since 2020, against +3.1% for the U.S. It has 100,846 households. Median household income in St. Clair County is $73,854, 9% below the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 33.8%, 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. St. Clair County scores 42 for fast food and sandwich shops (lower middle), #1,429 of 2,222 scored counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in St. Clair County. It maps the fast food and sandwich shops 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 fast food and sandwich shops · All 56 business types in St. Clair County
Screening a site or an acquisition in St. Clair 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 St. Clair 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.