Groundwork

Groceries and convenience · County · Illinois

Grocery stores in Rock Island County, IL

How Rock Island County, IL compares with other counties and the U.S. for grocery stores: competitors, household spending, official counts and growth.

Groundwork market score · out of 100

Score 42 out of 100: Lower middle

Ranked #1,286 of 2,070 scored counties
#45 of 67 scored counties in Illinois

Listings
40
16 chain locations (40%)
Official establishments
30
+15.4% since 2019
Household spending a year
$356.9M
On groceries · $5,782 a household
Spending per listing
$8.9M
4% below the U.S.
Listings per 10k households
6.5
4% below the U.S.
Population, 2025
141,869
−1.7% since 2020

See the grocery stores around any address in Rock Island 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 Rock Island 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

As of September 2026, map listings count 40 grocery stores in Rock Island County. 16 of them (40%) are chain locations, against 37% across the U.S. That comes to 6.5 for every 10,000 households, 4% below the U.S. rate of 6.8.

Households in Rock Island County spend about $356.9M a year on groceries, or $5,782 per household, 9% below the U.S. average. Spread across 40 grocery stores, that is $8.9M per store, 4% below the U.S. figure of $9.3M. That spending covers all groceries, which grocery stores share with other businesses in the trade.

In 2023, official counts showed 30 businesses with payroll in Rock Island County classed as supermarkets and grocery stores, up 15.4% from 2019. That is one for every 2,058 households, against one for every 2,053 across the U.S.

Population estimates show Rock Island County declined 1.7% from 2020 to 2025, against +3.1% for the U.S. For grocery stores, Rock Island County has a Groundwork market score of 42 (lower middle): #1,286 of 2,070 scored counties and #45 of 67 scored counties in Illinois.

How Rock Island 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 Rock Island County, IL compared with Illinois and the U.S.
MeasureRock Island CountyIllinoisU.S.
Listings per 10k households6.56.16.8
Spending per listing$8.9M$10.4M$9.3M
Households per official establishment2,0581,9032,053
Official establishment growth, 2019–2023+15.4%+2.4%0.0%
Population growth, 2020–2025−1.7%−0.6%+3.1%
Spending per household on groceries$5,782$6,290$6,319
Median household income$67,159$83,390$80,734
Groundwork market score4245

Official counts and lending

Businesses

Official establishments, 2019 to 2023
26 → 30+15.4% over the period
Employees, 2023
1,946
Annual payroll, 2023
$42.2M
One-person businesses, 2023
Not publishedNot published for this business type
Map listings, September 2026
4016 chain locations
Listings at the U.S. rate for this spending
38The 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 Rock Island 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 Rock Island County

Population, 2025 estimate
141,869−1.7% since 2020
Households
61,733
Median age
40.9
Homes lived in by their owners
70%
Vehicles per household
1.7
Land area
428 sq. mi.
People per square mile
334
Median household income
$67,159+22.4% vs. 2015–2019, before inflation
Average household income
$85,299
Median home value
$150,400
Jobs located here
67,505
Daytime population
147,154Residents who don’t work, plus everyone whose job is here

Looking at a specific site in Rock Island 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 Rock Island 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 Rock Island 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
45Rock Island County, IL42406.5$8.9M−1.7%#1,286 of 2,070

Other business types in Rock Island County

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

Questions

How many grocery stores are in Rock Island County, IL?

Rock Island County has 40 grocery stores on map listings as of September 2026. 16 of them (40%) are chain locations. The listings count grocery stores and supermarkets. Official counts show 30 businesses with payroll classed as supermarkets and grocery stores in 2023, up 15.4% from 2019.

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

About $356.9M a year, or $5,782 per household. That is 9% below the U.S. average (an index of 91, where 100 is the U.S. average). Spread across the 40 grocery stores on map listings, it comes to $8.9M per store. The spending figure covers all groceries, not only grocery stores. It is estimated from the incomes of the 61,733 households in Rock Island County and national spending patterns by income.

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

Rock Island County has 6.5 grocery stores per 10,000 households, 4% below the U.S. rate of 6.8. Spending per store is $8.9M, 4% below the U.S. figure of $9.3M. At the national ratio of grocery stores to household spending, Rock Island County would have about 38, against 40 on map listings. There is one business with payroll in the industry for every 2,058 households, against one for every 2,053 across the U.S. The official count rose 15.4% from 2019 to 2023, against 0.0% for the U.S.

How fast is Rock Island County, IL growing?

Population estimates put Rock Island County at 141,869 people in 2025, down 1.7% since 2020, against +3.1% for the U.S. It has 61,733 households. Median household income in Rock Island County is $67,159, 17% below the U.S. median of $80,734. Against the 2015–2019 survey, the median rose 22.4%, 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. Rock Island County scores 42 for grocery stores (lower middle), #1,286 of 2,070 scored counties.

How can I see the market around a specific site?

Run a Groundwork site report on an address in Rock Island 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 Rock Island County

Screening a site or an acquisition in Rock Island 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 Rock Island 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.