Groundwork

Groceries and convenience · County · Illinois

Grocery stores in Winnebago County, IL

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

Groundwork market score · out of 100

Score 48 out of 100: Lower middle

Ranked #1,074 of 2,070 scored counties
#34 of 67 scored counties in Illinois

Listings
67
22 chain locations (33%)
Official establishments
57
+5.6% since 2019
Household spending a year
$671.4M
On groceries · $5,787 a household
Spending per listing
$10M
8% above the U.S.
Listings per 10k households
5.8
15% below the U.S.
Population, 2025
283,674
−0.4% since 2020

See the grocery stores around any address in Winnebago County

The site report maps the grocery 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 Winnebago 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 Winnebago County comes to about $671.4M a year: $5,787 per household, 8% below the U.S. average. Spread across 67 grocery stores, that is $10M per store, 8% above the U.S. figure of $9.3M. The spending figure covers all groceries, not only grocery stores.

There are 67 grocery stores on map listings in Winnebago County as of September 2026. Of those, 22 are chain locations, or 33%, against 37% across the U.S. Per 10,000 households, that is 5.8, 15% below the U.S. rate of 6.8.

In 2023, official counts showed 57 businesses with payroll in Winnebago County classed as supermarkets and grocery stores, up 5.6% from 2019. That is one for every 2,035 households, against one for every 2,053 across the U.S. Since fiscal 2022, 3 SBA-backed loans worth $510K have gone to businesses classed as supermarkets and grocery stores in Winnebago County.

Population estimates show Winnebago County declined 0.4% from 2020 to 2025, against +3.1% for the U.S. The Groundwork market score for grocery stores in Winnebago County is 48 (lower middle), #1,074 of 2,070 scored counties and #34 of 67 scored counties in Illinois.

How Winnebago 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 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 stores in Winnebago County, IL compared with Illinois and the U.S.
MeasureWinnebago CountyIllinoisU.S.
Listings per 10k households5.86.16.8
Spending per listing$10M$10.4M$9.3M
Households per official establishment2,0351,9032,053
Official establishment growth, 2019–2023+5.6%+2.4%0.0%
Population growth, 2020–2025−0.4%−0.6%+3.1%
Spending per household on groceries$5,787$6,290$6,319
Median household income$65,837$83,390$80,734
Groundwork market score4845

Official counts and lending

Businesses

Official establishments, 2019 to 2023
54 → 57+5.6% over the period
Employees, 2023
1,695
Annual payroll, 2023
$45M
One-person businesses, 2023
Not publishedNot published for this business type
Map listings, September 2026
6722 chain locations
Listings at the U.S. rate for this spending
72The U.S. ratio of listings to household spending, applied here

SBA-backed loans since fiscal 2022

Loans
3
Amount
$510K

SBA-backed loans to businesses classed as supermarkets and grocery stores in Winnebago 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 Winnebago County

Population, 2025 estimate
283,674−0.4% since 2020
Households
116,014
Median age
40.4
Homes lived in by their owners
66%
Vehicles per household
1.7
Land area
513 sq. mi.
People per square mile
552
Median household income
$65,837+20.8% vs. 2015–2019, before inflation
Average household income
$86,474
Median home value
$164,500
Jobs located here
121,867
Daytime population
276,449Residents who don’t work, plus everyone whose job is here

Looking at a specific site in Winnebago 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 stores on map listings by name and distance.

Or open the report at the center of Winnebago County. Signed out, you see a blurred preview; on an account, each report is one action.

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Grocery stores across Illinois

Every Illinois market ranked →

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

Top counties in Illinois

Counties in Illinois ranked for grocery stores by Groundwork market score
MarketScoreListingsPer 10k householdsSpending per listingPopulation growthU.S. rank
1Kendall County, IL92153.3$20.8M+9.9%#34 of 2,070
2Grundy County, IL8394.4$14.8M+2.9%#133 of 2,070
3Monroe County, IL7953.6$18.5M−0.3%#208 of 2,070
4Boone County, IL7773.6$17.5M+0.4%#239 of 2,070
5McHenry County, IL76484.1$16.5M+2.5%#264 of 2,070
6Williamson County, IL7593.1$18.6M+0.2%#285 of 2,070
7Will County, IL741204.9$13.9M+2.2%#310 of 2,070
8Tazewell County, IL71254.6$13.2M−0.9%#369 of 2,070
9DeKalb County, IL68194.8$12.4M+1.5%#452 of 2,070
10Kane County, IL671045.6$12M+1.8%#479 of 2,070
34Winnebago County, IL48675.8$10M−0.4%#1,074 of 2,070

Other business types in Winnebago County

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

Questions

How many grocery stores are in Winnebago County, IL?

As of September 2026, map listings count 67 grocery stores in Winnebago County. 22 of them (33%) are chain locations. The listings count grocery stores and supermarkets. Official counts show 57 businesses with payroll classed as supermarkets and grocery stores in 2023, up 5.6% from 2019.

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

About $671.4M a year, or $5,787 per household. That is 8% below the U.S. average (an index of 92, where 100 is the U.S. average). Spread across the 67 grocery stores on map listings, it comes to $10M per store. That spending covers all groceries, which grocery stores share with other businesses in the trade. It is estimated from the incomes of the 116,014 households in Winnebago County and national spending patterns by income.

How does Winnebago County, IL compare with the U.S. for grocery stores?

Winnebago County has 5.8 grocery stores per 10,000 households, 15% below the U.S. rate of 6.8. Spending per store is $10M, 8% above the U.S. figure of $9.3M. At the U.S. ratio of grocery stores to household spending, Winnebago County would have about 72, against 67 on map listings. There is one business with payroll in the industry for every 2,035 households, against one for every 2,053 across the U.S. The official count rose 5.6% from 2019 to 2023, against 0.0% for the U.S.

How fast is Winnebago County, IL growing?

Population estimates put Winnebago County at 283,674 people in 2025, down 0.4% since 2020, against +3.1% for the U.S. It has 116,014 households. The median household income in Winnebago County is $65,837 a year, 18% below the U.S. median of $80,734. That rose 20.8% 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. Winnebago County scores 48 for grocery stores (lower middle), #1,074 of 2,070 scored counties.

How can I see the market around a specific site?

Run a Groundwork site report on an address in Winnebago County. It maps the grocery 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 stores · All 56 business types in Winnebago County

Screening a site or an acquisition in Winnebago 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 Winnebago 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.