Groundwork

Food and drink · County · Illinois

Fast food and sandwich shops in Williamson County, IL

The fast food and sandwich shops in Williamson County, IL, the household spending behind them and how the market ranks against other counties.

Groundwork market score · out of 100

Score 34 out of 100: Lower middle

Ranked #1,707 of 2,222 scored counties
#65 of 80 scored counties in Illinois

Listings
47
44 chain locations (94%)
Official establishments
62
All limited-service restaurants · +19.2% since 2019
Household spending a year
$104.9M
On food away from home · $3,621 a household
Spending per listing
$2.2M
27% below the U.S.
Listings per 10k households
16.2
22% above the U.S.
Population, 2025
67,225
+0.2% since 2020

See the fast food and sandwich shops around any address in Williamson 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 Williamson County. Signed out, you see a blurred preview; on an account, each report is one action.

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Survey estimates 2020–2024 · population estimates 2025 · official business counts 2023 · map listings September 2026 · Data credits · How we measure

What this means

The Groundwork market score for fast food and sandwich shops in Williamson County is 34 (lower middle), #1,707 of 2,222 scored counties and #65 of 80 scored counties in Illinois. That puts it in the bottom quarter of counties.

Map listings as of September 2026 show 47 fast food and sandwich shops in Williamson County. Of those, 44 are chain locations, or 94%, against 79% across the U.S. That is 16.2 per 10,000 households, 22% above the U.S. rate of 13.3.

Household spending on food away from home in Williamson County comes to about $104.9M a year: $3,621 per household, 11% below the U.S. average. Spread across 47 fast food and sandwich shops, that is $2.2M per shop, 27% below the U.S. figure of $3.1M. That spending covers all food away from home, which fast food and sandwich shops share with other businesses in the trade.

Official counts show 62 businesses with payroll classed as limited-service restaurants in Williamson County in 2023, up 19.2% from 2019. That is one for every 467 households, against one for every 478 across the U.S. The official count takes in all limited-service restaurants, not only fast food and sandwich shops: pizza places are counted too. Since fiscal 2022, 1 SBA-backed loan worth $1.2M has gone to businesses classed as limited-service restaurants in Williamson County. Population estimates show Williamson County grew 0.2% from 2020 to 2025, slower than the U.S. (+3.1%).

How Williamson 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.

Fast food and sandwich shops in Williamson County, IL compared with Illinois and the U.S.
MeasureWilliamson CountyIllinoisU.S.
Listings per 10k households16.213.613.3
Spending per listing$2.2M$3.1M$3.1M
Households per official establishment (all limited-service restaurants)467474478
Official establishment growth, 2019–2023+19.2%+2.0%+6.1%
Population growth, 2020–2025+0.2%−0.6%+3.1%
Spending per household on food away from home$3,621$4,215$4,070
Median household income$65,604$83,390$80,734
Groundwork market score3441

Official counts and lending

Businesses

Official establishments, 2019 to 2023
52 → 62All limited-service restaurants · +19.2% over the period
Employees, 2023
1,271
Annual payroll, 2023
$23.9M
One-person businesses, 2023
4All limited-service restaurants with no payroll
Map listings, September 2026
4744 chain locations
Listings at the U.S. rate for this spending
34The U.S. ratio of listings to household spending, applied here

SBA-backed loans since fiscal 2022

Loans
1
Amount
$1.2M

SBA-backed loans to businesses classed as limited-service restaurants in Williamson 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 Williamson County

Population, 2025 estimate
67,225+0.2% since 2020
Households
28,983
Median age
42.8
Homes lived in by their owners
71%
Vehicles per household
1.8
Land area
420 sq. mi.
People per square mile
159
Median household income
$65,604+29.3% vs. 2015–2019, before inflation
Average household income
$85,846
Median home value
$156,400
Jobs located here
28,604
Daytime population
68,042Residents who don’t work, plus everyone whose job is here

Looking at a specific site in Williamson 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 Williamson County. Signed out, you see a blurred preview; on an account, each report is one action.

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Fast 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 Williamson County marked.

Top counties in Illinois

Counties in Illinois ranked for fast food and sandwich shops by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1Piatt County, IL80710.1$4.2M+0.6%#130 of 2,222
2Woodford County, IL79138.9$4.9M−0.8%#142 of 2,222
3Moultrie County, IL7358.6$4.3M−0.8%#277 of 2,222
4Bond County, IL7158.1$4.5M+0.6%#326 of 2,222
5Kendall County, IL715612.3$3.9M+9.9%#331 of 2,222
6McHenry County, IL7013311.3$4.2M+2.5%#355 of 2,222
7Bureau County, IL68128.6$4.3M−2.1%#423 of 2,222
8Monroe County, IL681712.3$3.8M−0.3%#431 of 2,222
9Clinton County, IL682013.7$3M+0.6%#452 of 2,222
10Macoupin County, IL67169.1$4.2M−2.6%#465 of 2,222
65Williamson County, IL344716.2$2.2M+0.2%#1,707 of 2,222

Other business types in Williamson County

Each with its Groundwork market score here, out of 100, where it has one.

Questions

How many fast food and sandwich shops are in Williamson County, IL?

There are 47 fast food and sandwich shops on map listings in Williamson County as of September 2026. 44 of them (94%) are chain locations. The listings count fast food, sandwich shops, delis and bagel shops. Official counts show 62 businesses with payroll classed as limited-service restaurants in 2023, up 19.2% from 2019. That count covers all limited-service restaurants (pizza places included), not only fast food and sandwich shops. Official counts list 4 one-person businesses without payroll.

How much do households in Williamson County, IL spend on food away from home?

About $104.9M a year, or $3,621 per household. That is 11% below the U.S. average (an index of 89, where 100 is the U.S. average). Spread across the 47 fast food and sandwich shops on map listings, it comes to $2.2M per shop. The spending figure covers all food away from home, not only fast food and sandwich shops. It is estimated from the incomes of the 28,983 households in Williamson County and national spending patterns by income.

How does Williamson County, IL compare with the U.S. for fast food and sandwich shops?

Williamson County has 16.2 fast food and sandwich shops per 10,000 households, 22% above the U.S. rate of 13.3. Spending per shop is $2.2M, 27% below the U.S. figure of $3.1M. At the national ratio of fast food and sandwich shops to household spending, Williamson County would have about 34, against 47 on map listings. There is one business with payroll in the industry for every 467 households, against one for every 478 across the U.S. The official count rose 19.2% from 2019 to 2023, against +6.1% for the U.S.

How fast is Williamson County, IL growing?

Population estimates put Williamson County at 67,225 people in 2025, up 0.2% since 2020, slower than the U.S. (+3.1%). It has 28,983 households. The median household income in Williamson County is $65,604 a year, 19% below the U.S. median of $80,734. That rose 29.3% 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. Williamson County scores 34 for fast food and sandwich shops (lower middle), #1,707 of 2,222 scored counties.

How can I see the market around a specific site?

Run a Groundwork site report on an address in Williamson 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 Williamson County

Screening a site or an acquisition in Williamson 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 Williamson 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.