Where to Buy a Business in Illinois
The Opportunity
Buyable Businesses
37,406
3.6% of the U.S. total
Per 100k Residents
294.3
#6 of 51 states by buyable count
SBA Acquisition Loans
1,320
$1.53B since FY2020, 310 of them in FY2025
Median SBA Deal
$691k
FY2020 through FY2025
Illinois holds 37,406 businesses a searcher could realistically buy across the trades this site covers: establishments with 5 to 99 employees, big enough to have something to sell, small enough to finance. That is 3.6% of the country's buyable market and ranks Illinois #6 among the states. The number that decides a search, though, is not the state total but where inside the state those businesses sit.
The Deepest Counties in Illinois
Nobody searches Illinois. They search a metro they can drive across to meet an owner. These are the counties with the most buyable targets in the covered trades, Cook deepest among them. Chicago is scanned in Metro Target Scans, which ranks the strongest industries within two hours by loans closed, median size, and seasoned charge-off.
| Cook | 14,285 | 38.2% |
| DuPage | 3,380 | 9% |
| Lake | 2,155 | 5.8% |
| Will | 1,977 | 5.3% |
| Kane | 1,530 | 4.1% |
| McHenry | 924 | 2.5% |
| Madison | 837 | 2.2% |
| Winnebago | 811 | 2.2% |
| St. Clair | 675 | 1.8% |
| Sangamon | 651 | 1.7% |
What Trades Run Deepest in Illinois
- Limited-Service Restaurants7,628 buyable
- Full-Service Restaurants6,878 buyable
- Offices of Dentists3,181 buyable
- Gasoline Stations with Convenience Stores2,215 buyable
- Snack and Nonalcoholic Beverage Bars1,927 buyable
- Child Day Care Services1,870 buyable
Each trade's pricing, licensing, and diligence live in its Industry Buy Guide. The financing side is in Illinois's SBA acquisition-lending profile, the same counts industry by industry across every state are in Where the Businesses Are, and several of these trades restrict who can own at all: the Ownership & License Rules table names which.
Method & Source
Buyable counts are establishments with 5 to 99 employees in the 29 covered trades, summed from the Census County Business Patterns (2023). A county total is a lower bound: Census suppresses cells thin enough to identify a single business, and a trade we have not written a guide for is not counted. SBA figures are change-of-ownership 7(a) approvals (FY2020 through FY2025), approvals rather than closings.