Active US Military Bases in Japan
Japan hosts 10 U.S. military bases or major installations in the current MilitaryINSTALLATIONS overseas directory. This guide keeps the details brief so you can quickly see where each location is and what it supports.
US Military Bases in Japan
U.S. forces in Japan support a mix of training, logistics, aviation, fleet, headquarters and regional missions. The installations below are grouped by service branch.
Army Bases in Japan
U.S. Army locations here support soldiers, readiness, training, logistics and day-to-day garrison services.
USAG Japan, Zama
USAG Japan, Zama is an active U.S. military location in Zama. Its main role includes army headquarters and garrison support.
| Branch / organization | Army |
|---|---|
| Location | Zama |
| Country | Japan |
| Main operations | Army headquarters and garrison support |
| Public contact | Use the installation’s official MilitaryINSTALLATIONS contact listing for the current office number |
| Status | Active |
USAG Okinawa, Torii Station
USAG Okinawa, Torii Station is an active U.S. military location in Okinawa. Its main role includes army communications, logistics and garrison support.
| Branch / organization | Army |
|---|---|
| Location | Okinawa |
| Country | Japan |
| Main operations | Army communications, logistics and garrison support |
| Public contact | Use the installation’s official MilitaryINSTALLATIONS contact listing for the current office number |
| Status | Active |
Air Force Bases in Japan
U.S. Air Force locations here support flying missions, readiness, logistics and regional operations.
Kadena Air Base
Kadena Air Base is an active U.S. military location in Okinawa. Its main role includes air combat, mobility, reconnaissance and regional support.
| Branch / organization | Air Force |
|---|---|
| Location | Okinawa |
| Country | Japan |
| Main operations | Air combat, mobility, reconnaissance and regional support |
| Public contact | Use the installation’s official MilitaryINSTALLATIONS contact listing for the current office number |
| Status | Active |
Misawa Air Base
Misawa Air Base is an active U.S. military location in Misawa. Its main role includes air operations, intelligence and bilateral mission support.
| Branch / organization | Air Force |
|---|---|
| Location | Misawa |
| Country | Japan |
| Main operations | Air operations, intelligence and bilateral mission support |
| Public contact | Use the installation’s official MilitaryINSTALLATIONS contact listing for the current office number |
| Status | Active |
Yokota Air Base
Yokota Air Base is an active U.S. military location in Tokyo area. Its main role includes airlift, logistics and headquarters support.
| Branch / organization | Air Force |
|---|---|
| Location | Tokyo area |
| Country | Japan |
| Main operations | Airlift, logistics and headquarters support |
| Public contact | Use the installation’s official MilitaryINSTALLATIONS contact listing for the current office number |
| Status | Active |
Navy Bases in Japan
U.S. Navy locations here support ships, aviation, logistics and personnel across the region.
Commander Fleet Activities Sasebo
Commander Fleet Activities Sasebo is an active U.S. military location in Sasebo. Its main role includes fleet operations, port support and logistics.
| Branch / organization | Navy |
|---|---|
| Location | Sasebo |
| Country | Japan |
| Main operations | Fleet operations, port support and logistics |
| Public contact | Use the installation’s official MilitaryINSTALLATIONS contact listing for the current office number |
| Status | Active |
Commander Fleet Activities Yokosuka
Commander Fleet Activities Yokosuka is an active U.S. military location in Yokosuka. Its main role includes major u.s. navy fleet homeport and support hub.
| Branch / organization | Navy |
|---|---|
| Location | Yokosuka |
| Country | Japan |
| Main operations | Major U.S. Navy fleet homeport and support hub |
| Public contact | Use the installation’s official MilitaryINSTALLATIONS contact listing for the current office number |
| Status | Active |
Naval Air Facility Atsugi
Naval Air Facility Atsugi is an active U.S. military location in Ayase / Yamato area. Its main role includes naval aviation and support operations.
| Branch / organization | Navy |
|---|---|
| Location | Ayase / Yamato area |
| Country | Japan |
| Main operations | Naval aviation and support operations |
| Public contact | Use the installation’s official MilitaryINSTALLATIONS contact listing for the current office number |
| Status | Active |
Marine Corps Bases in Japan
U.S. Marine Corps locations here support aviation, training, readiness and deployed forces.
Camp S. D. Butler
Camp S. D. Butler is an active U.S. military location in Okinawa. Its main role includes marine corps training, operations and installation support across several camps.
| Branch / organization | Marine Corps |
|---|---|
| Location | Okinawa |
| Country | Japan |
| Main operations | Marine Corps training, operations and installation support across several camps |
| Public contact | Use the installation’s official MilitaryINSTALLATIONS contact listing for the current office number |
| Status | Active |
Marine Corps Air Station Iwakuni
Marine Corps Air Station Iwakuni is an active U.S. military location in Iwakuni. Its main role includes marine aviation and joint operations.
| Branch / organization | Marine Corps |
|---|---|
| Location | Iwakuni |
| Country | Japan |
| Main operations | Marine aviation and joint operations |
| Public contact | Use the installation’s official MilitaryINSTALLATIONS contact listing for the current office number |
| Status | Active |
Frequently Asked Questions
How many active US military bases are in Japan?
This guide includes 10 current base or major installation entries for Japan from the MilitaryINSTALLATIONS overseas directory.
Which U.S. military branches have bases in Japan?
The current entries include Marine Corps, Navy, Air Force, Army.
Are U.S. military bases in Japan active?
Yes. The locations in this guide are listed as current overseas installations. Individual missions and unit assignments can change over time.
Can civilians visit U.S. military bases in Japan?
Access is controlled. Visitors normally need authorization and valid identification, and rules can differ by installation and host-country requirements.
Why can military-base totals for Japan differ?
Some sources count small sites, tenant units or separate facilities differently. This article uses major entries in the current MilitaryINSTALLATIONS directory for a consistent count.