Groundwork

Groceries and convenience · County · Illinois

Grocery stores in Johnson County, IL

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

Groundwork market score

Not scored

The score needs at least 5 listings; this market has 3.

Listings
3
0 chain locations (0%)
Official establishments
n/a
Fewer than 3, or not published
Household spending a year
$23.1M
On groceries · $5,634 a household
Spending per listing
$7.7M
17% below the U.S.
Listings per 10k households
7.3
7% above the U.S.
Population, 2025
13,363
+0.4% since 2020

See the grocery stores around any address in Johnson 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 Johnson County. Signed out, you see a blurred preview; on an account, each report is one action.

Free10 actions over 3 days, no card

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

What this means

Households in Johnson County spend about $23.1M a year on groceries, or $5,634 per household, 11% below the U.S. average. That works out to $7.7M per store, 17% below the U.S. figure of $9.3M. The spending figure covers all groceries, not only grocery stores.

There are 3 grocery stores on map listings in Johnson County as of September 2026. Per 10,000 households, that is 7.3, 7% above the U.S. rate of 6.8.

Official counts don’t publish a figure for supermarkets and grocery stores in Johnson County, since they leave out counts under 3.

Population estimates show Johnson County grew 0.4% from 2020 to 2025, slower than the U.S. (+3.1%). With 3 grocery stores on map listings, Johnson County isn’t given a market score: the score needs at least 5, since one listing more or less would swing it.

How Johnson 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 Johnson County, IL compared with Illinois and the U.S.
MeasureJohnson CountyIllinoisU.S.
Listings per 10k households7.36.16.8
Spending per listing$7.7M$10.4M$9.3M
Households per official establishmentn/a1,9032,053
Official establishment growth, 2019–2023n/a+2.4%0.0%
Population growth, 2020–2025+0.4%−0.6%+3.1%
Spending per household on groceries$5,634$6,290$6,319
Median household income$62,528$83,390$80,734
Groundwork market scoreNot scored45

Official counts and lending

Businesses

Official establishments, 2019 to 2023
n/a
Employees, 2023
n/a
Annual payroll, 2023
n/a
One-person businesses, 2023
Not publishedNot published for this business type
Map listings, September 2026
30 chain locations
Listings at the U.S. rate for this spending
3The 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 supermarkets and grocery stores in Johnson 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 Johnson County

Population, 2025 estimate
13,363+0.4% since 2020
Households
4,101
Median age
41.4
Homes lived in by their owners
82%
Vehicles per household
2.0
Land area
344 sq. mi.
People per square mile
39
Median household income
$62,528+18.5% vs. 2015–2019, before inflation
Average household income
$78,713
Median home value
$160,500
Jobs located here
2,158
Daytime population
10,999Residents who don’t work, plus everyone whose job is here

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

Free10 actions over 3 days, no card

Grocery stores across Illinois

Every Illinois market ranked →

The highest-scoring counties in Illinois for grocery stores, numbered among those based in Illinois, with Johnson 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
Johnson County, ILNot scored37.3$7.7M+0.4%

Other business types in Johnson County

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

Questions

How many grocery stores are in Johnson County, IL?

As of September 2026, map listings count 3 grocery stores in Johnson County. The listings count grocery stores and supermarkets. No official count is published for supermarkets and grocery stores in Johnson County: counts under 3 are left out.

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

About $23.1M a year, or $5,634 per household. That is 11% below the U.S. average (an index of 89, where 100 is the U.S. average). Spread across the 3 grocery stores on map listings, it comes to $7.7M 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 4,101 households in Johnson County and national spending patterns by income.

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

Johnson County has 7.3 grocery stores per 10,000 households, 7% above the U.S. rate of 6.8. Spending per store is $7.7M, 17% below the U.S. figure of $9.3M. The count on map listings matches the U.S. ratio of grocery stores to household spending.

How fast is Johnson County, IL growing?

Population estimates put Johnson County at 13,363 people in 2025, up 0.4% since 2020, slower than the U.S. (+3.1%). It has 4,101 households. The median household income in Johnson County is $62,528 a year, 23% below the U.S. median of $80,734. That rose 18.5% 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. Johnson County has no market score for grocery stores: the score needs at least 5 on map listings, and it has 3.

How can I see the market around a specific site?

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

Screening a site or an acquisition in Johnson 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 Johnson 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.