Groundwork

Groceries and convenience · County · Illinois

Grocery and convenience stores in Williamson County, IL

Competitor counts, household spending and official business counts for grocery and convenience stores in Williamson County, IL, set against other counties and the U.S.

Groundwork market score · out of 100

Score 74 out of 100: Upper middle

Ranked #315 of 2,402 scored counties
#11 of 85 scored counties in Illinois

Listings
37
19 chain locations (51%)
Official establishments
5
Businesses with payroll, 2023
Household spending a year
$167.7M
On groceries · $5,785 a household
Spending per listing
$4.5M
34% above the U.S.
Listings per 10k households
12.8
32% below the U.S.
Population, 2025
67,225
+0.2% since 2020

See the grocery and convenience stores around any address in Williamson County

The site report maps the grocery and convenience stores 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

Household spending on groceries in Williamson County comes to about $167.7M a year: $5,785 per household, 8% below the U.S. average. That is about $4.5M of household spending for each store on map listings, 34% above the U.S. figure of $3.4M.

There are 37 grocery and convenience stores on map listings in Williamson County as of September 2026. Chain locations make up 51% of them, against 42% across the U.S. That is 12.8 per 10,000 households, 32% below the U.S. rate of 18.7.

Official counts show 5 businesses with payroll classed as grocery and convenience stores in Williamson County in 2023. That is one for every 5,797 households, against one for every 1,293 across the U.S. Official counts also show 10 one-person businesses without payroll. Since fiscal 2022, 2 SBA-backed loans worth $492K have gone to businesses classed as grocery and convenience stores in Williamson County.

Population estimates show Williamson County grew 0.2% from 2020 to 2025, slower than the U.S. (+3.1%). The Groundwork market score for grocery and convenience stores in Williamson County is 74 (upper middle), #315 of 2,402 scored counties and #11 of 85 scored counties in Illinois. That puts it in the top quarter of counties.

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 groceries by the grocery and convenience stores counted, so it measures the demand for each competitor, not any business’s revenue. Households per establishment does the same with the official count.

Grocery and convenience stores in Williamson County, IL compared with Illinois and the U.S.
MeasureWilliamson CountyIllinoisU.S.
Listings per 10k households12.815.018.7
Spending per listing$4.5M$4.2M$3.4M
Households per official establishment5,7971,4421,293
Official establishment growth, 2019–2023n/a+4.8%+7.2%
Population growth, 2020–2025+0.2%−0.6%+3.1%
Spending per household on groceries$5,785$6,290$6,319
Median household income$65,604$83,390$80,734
Groundwork market score7460

Official counts and lending

Businesses

Official establishments, 2019 to 2023
11 → 5
Employees, 2023
233
Annual payroll, 2023
$7.5M
One-person businesses, 2023
10Businesses with no payroll
Map listings, September 2026
3719 chain locations
Listings at the U.S. rate for this spending
50The U.S. ratio of listings to household spending, applied here

SBA-backed loans since fiscal 2022

Loans
2
Amount
$492K

SBA-backed loans to businesses classed as grocery and convenience stores 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.

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 grocery and convenience stores 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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Grocery and convenience stores across Illinois

Every Illinois market ranked →

The highest-scoring counties in Illinois for grocery and convenience stores, numbered among those based in Illinois, with Williamson County marked.

Top counties in Illinois

Counties in Illinois ranked for grocery and convenience stores by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1Kendall County, IL944610.1$6.8M+9.9%#14 of 2,402
2Grundy County, IL833316.0$4M+2.9%#135 of 2,402
3Will County, IL8130712.6$5.4M+2.2%#156 of 2,402
4McHenry County, IL8014212.1$5.6M+2.5%#176 of 2,402
5Monroe County, IL792215.9$4.2M−0.3%#204 of 2,402
6Boone County, IL77189.2$6.8M+0.4%#234 of 2,402
7Kane County, IL7626014.1$4.8M+1.8%#261 of 2,402
8Tazewell County, IL757213.3$4.6M−0.9%#287 of 2,402
9DeKalb County, IL755614.2$4.2M+1.5%#292 of 2,402
10Lake County, IL7433913.1$5.3M+0.8%#309 of 2,402
11Williamson County, IL743712.8$4.5M+0.2%#315 of 2,402

Other business types in Williamson County

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

Groceries and convenience

Funeral services

Questions

How many grocery and convenience stores are in Williamson County, IL?

As of September 2026, map listings count 37 grocery and convenience stores in Williamson County. 19 of them (51%) are chain locations. The listings count grocery, convenience and specialty food stores. Official counts show 5 businesses with payroll classed as grocery and convenience stores in 2023. Another 10 one-person businesses have no payroll, by official counts.

How much do households in Williamson County, IL spend on groceries?

About $167.7M a year, or $5,785 per household. That is 8% below the U.S. average (an index of 92, where 100 is the U.S. average). Spread across the 37 grocery and convenience stores on map listings, it comes to $4.5M per store. 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 grocery and convenience stores?

Williamson County has 12.8 grocery and convenience stores per 10,000 households, 32% below the U.S. rate of 18.7. Spending per store is $4.5M, 34% above the U.S. figure of $3.4M. At the U.S. ratio of grocery and convenience stores to household spending, Williamson County would have about 50, against 37 on map listings. There is one business with payroll in the industry for every 5,797 households, against one for every 1,293 across 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 74 for grocery and convenience stores (upper middle), #315 of 2,402 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 grocery and convenience stores 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 grocery and convenience stores · 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.

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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.