California has 12 Army bases: 3.6% of the US total of 332. That ranks #7 by count and #48 per person (0.03 per 100,000 residents) of 51.
Source: DoD Military Installations, Ranges and Training Areas (MIRTA), via the Bureau of Transportation Statistics, 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
Local blogs, news sites, parks pages: embed the live interactive map with one snippet. Attribution stays on, that's the whole deal.
<iframe src="https://get-instamaps.com/embed/rankings/army-bases/california" width="100%" height="440" style="border:2px solid #111" loading="lazy" title="California army bases map — InstaMaps"></iframe>| # | Name | Details |
|---|---|---|
| 1 | Camp Roberts | Army National Guard · 42,702 acres |
| 2 | Def Distr Reg West Sharpe Site | Army · 527 acres |
| 3 | Fort Hunter Liggett | Army Reserve · 161,051 acres |
| 4 | Fort Irwin | Army · 756,885 acres |
| 5 | Military Ocean Terminal Concord | Army · 5,746 acres |
| 6 | NG ITC Camp San Luis Obisbo | Army National Guard · 5,531 acres |
| 7 | NG Lathrop | Army National Guard · 64 acres |
| 8 | NG Los Alamitos JFTB | Army National Guard · 1,324 acres |
| 9 | Parks Reserve Forces Tng Area | Army Reserve · 2,328 acres |
| 10 | Presidio of Monterey | Army · 392 acres |
| 11 | Sierra Army Depot | Army · 26,021 acres |
| 12 | USMCB Camp Pendleton | Army Reserve · 12 acres |
Names as the source gives them. Coordinates for every one are in the CSV.
"California has 12 Army bases, #7 in the US by count and #48 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.