List of Active Military Bases in Illinois
Illinois has a smaller but important group of active military installations. This guide covers 3 major installations across Army, Air Force and Navy.
Military Bases in Illinois
The installations in Illinois support training, logistics. They are grouped by branch below so readers can find each base quickly.
Army Bases in Illinois
Army installations in Illinois support training, readiness, testing, logistics or other land-force missions. The exact role depends on the installation.
Rock Island Arsenal
Rock Island Arsenal is an active army installation in the Rock Island area. Its main work includes army logistics, manufacturing and sustainment, with facilities that support the mission and assigned personnel.
| Branch | Army |
|---|---|
| Location | Rock Island, Illinois |
| Address | 390 Rodman Avenue, Rock Island, IL 61299 |
| Main contact | 309-782-6001 |
| Main operations | Army logistics, manufacturing and sustainment |
| Key facilities | Warehouses, maintenance areas, logistics facilities and base support |
| Status | Active |
Air Force Bases in Illinois
Air Force installations in Illinois support flying missions, training, maintenance and readiness. Some also handle specialized testing or command work.
Scott Air Force Base
Scott Air Force Base is an active air force installation in the Belleville area area. Its main work includes air mobility and transportation command support, with facilities that support the mission and assigned personnel.
| Branch | Air Force |
|---|---|
| Location | Belleville area, Illinois |
| Address | 404 W. Martin Street, Building 1650, Scott AFB, IL 62225 |
| Main contact | 618-256-8668 |
| Main operations | Air mobility and transportation command support |
| Key facilities | Airfield, hangars or maintenance areas, and personnel support services |
| Status | Active |
Navy Bases in Illinois
Navy installations in Illinois support ships, submarines, aviation, training, weapons or shore-based commands.
Naval Station Great Lakes
Naval Station Great Lakes is an active navy installation in the North Chicago area. Its main work includes navy recruit and technical training, with facilities that support the mission and assigned personnel.
| Branch | Navy |
|---|---|
| Location | North Chicago, Illinois |
| Address | 2601 E. Paul Jones Street, Great Lakes, IL 60088 |
| Main contact | 847-688-3500 |
| Main operations | Navy recruit and technical training |
| Key facilities | Piers or waterfront facilities, operations areas and support services |
| Status | Active |
Frequently Asked Questions
How many active military bases are in Illinois?
Using the major-installation definition used in this guide, Illinois has 3 active military or defense installations. Recruiting offices and unit-only Guard listings are not counted as separate bases.
Which military branches have bases in Illinois?
This list includes installations connected with the Army, Air Force and Navy. Joint and other defense installations are listed separately when they are present.
Are there army bases in Illinois?
Yes. This guide lists 1 army bases in Illinois, including Rock Island Arsenal.
Are there air force bases in Illinois?
Yes. This guide lists 1 air force bases in Illinois, including Scott Air Force Base.
Can civilians visit military bases in Illinois?
Sometimes, but access rules vary by installation and can change. Visitors may need an approved sponsor, a valid ID or a visitor pass. Check with the installation before traveling.
Does this list include recruiting offices in Illinois?
No. Recruiting battalions and similar administrative listings are not counted as separate military bases. The list focuses on active installation-type locations.