# Army Bases in Illinois: All 5 on a Map (List + Data) | InstaMaps

> Illinois has 5 Army bases (1.5% of the US), #31 by count and #45 per person. From DoD Military Installations, Ranges and Training Areas. Map to embed, CSV download.

Source: https://get-instamaps.com/rankings/army-bases/illinois

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# Army Bases in Illinois

Illinois has **5 Army bases**: 1.5% of the US total of 332\. That ranks **#31 by count** and **#45 per person** (0.04 per 100,000 residents) of 51.

## Key takeaways

* Illinois has 5 Army bases, 1.5% of the US total of 332.
* That ranks #31 of 51 by count and #45 per person (0.04 per 100,000 residents).
* Alabama has the most, with 21.
* The largest is Joliet USARC/JTA, at 3,576 acres.
* Source: DoD Military Installations, Ranges and Training Areas (MIRTA), via the Bureau of Transportation Statistics, 2026.

#45

national rank (per capita)

5

Army bases

0.04

per 100k residents

## The data

Source: [DoD Military Installations, Ranges and Training Areas (MIRTA), via the Bureau of Transportation Statistics](https://www.bts.gov/ntad), 2026\. Every active installation the DoD lists under the Army, including its Reserve and National Guard sites, at the centre of its boundary, with its area in acres. Joint bases are listed under the branch that reports them.

Licence: U.S. government data: no copyright, free to reuse

[Illinois: 5 rows (CSV)](/downloads/army-bases/illinois.csv)[All of the US (CSV)](/downloads/army-bases/us.csv)

## Put this map on your website — free

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## All 5 Army bases in Illinois

| # | Name                           | Details                           |
| - | ------------------------------ | --------------------------------- |
| 1 | Joliet USARC/JTA               | Army Reserve · 3,576 acres        |
| 2 | NG Marseilles (MTA Tng Area)   | Army National Guard · 2,565 acres |
| 3 | NG Sparta Armory               | Army National Guard · 2,650 acres |
| 4 | NG Springfield (TS Cp Lincoln) | Army National Guard · 209 acres   |
| 5 | Rock Island Arsenal            | Army · 948 acres                  |

Names as the source gives them. Coordinates for every one are in the CSV.

## Cite this

"Illinois has 5 Army bases, #31 in the US by count and #45 per person (DoD Military Installations, Ranges and Training Areas, 2026, mapped by InstaMaps)." Free to quote with a link to this page. Population: US Census 2024 estimates.