Illinois manufacturing fact sheet
THE FACTORY CENSUS, Q3 2026 · FACTORYREGISTRY RESEARCH · SNAPSHOT AUG 2026
As of AUG 2026, FactoryRegistry lists 14,471 manufacturing facilities in Illinois, of which 4,683 (32.4%) carry a recent operating signal. That is 113.85 facilities per 100,000 residents.
Full census, Q3 2026 · Illinois in the registry
Top counties
| COUNTY | FACILITIES |
|---|---|
| Cook | 4,307 |
| DuPage | 1,311 |
| Kane | 760 |
| Lake | 733 |
| Will | 716 |
| Winnebago | 476 |
| McHenry | 382 |
| Madison | 287 |
| St. Clair | 273 |
| Champaign | 256 |
Leading industries
| SUBSECTOR | FACILITIES |
|---|---|
| 339 Miscellaneous Manufacturing | 4,016 |
| 332 Fabricated Metal Product Manufacturing | 2,153 |
| 325 Chemical Manufacturing | 1,247 |
| 311 Food Manufacturing | 1,134 |
| 333 Machinery Manufacturing | 1,033 |
Largest listed employers
| FACILITY | CITY | EMPLOYEES |
|---|---|---|
| 100 Rivian Motorway (Normal, Illinois) | Normal | 500+ |
| AbbVie (Abbott Park ) | North Chicago | 500+ |
| AbbVie (North Chicago) | North Chicago | 500+ |
| Aisin Mfg Illinois LLC | Marion | 500+ |
| AJR Enterprises, LLC | Saint Charles | 500+ |
| Alpha Baking Polk | Chicago | 500+ |
| AMD Des Plaines | Des Plaines | 500+ |
| Amylu Foods LLC, | Chicago | 500+ |
| Antioch | Antioch | 500+ |
| Astellas Pharma Global Development | Northbrook | 500+ |
Ranked by reported employment band. Facilities whose sources report no band are not listed here.
Coverage
The registry lists 14,471 facilities in Illinois against a BLS QCEW benchmark of 19,324 manufacturing establishments (2024) — coverage of 74.9%. The benchmark is a floor: QCEW counts establishments covered by unemployment insurance and so excludes most sole proprietors and some contract operations. The real number of manufacturing sites is therefore higher than the benchmark, and this percentage overstates coverage rather than understating it. Where it exceeds 100%, the registry lists more sites than QCEW counts establishments — which is expected in states with many small or single-person operations, and is also where duplicate listings would show up first.
FactoryRegistry Research, The Factory Census, Q3 2026 — factoryregistry.com/census/2026-q3/il · press@factoryregistry.com