I am compiling government-released statistical information. For more detailed information, please refer to the Government Statistics Portal (e-Stat) or the statistical data published by respective government ministries and agencies.
The regional distribution of Self-Defense Force facilities (land).
summary
To enhance understanding both domestically and internationally regarding our country’s defense policy, current information on Self-Defense Force facilities (land) has been compiled. This encompasses regional distribution patterns of these facilities and the area allocated for various purposes. Such information is utilized as a foundation for creating figures and tables in publications.
| Agency Name | Ministry of Defense |
|---|---|
| Division/Section | Minister’s Secretariat Planning and Evaluation Division |
consideration
The provided data offers information on the regional distribution of Self-Defense Force facilities (land), presenting the respective areas and their proportions. In Japan, different regions, namely Hokkaido, Tohoku, Kyushu, Tokai (Central), Kanto, and others, oversee the placement of these facilities.
Hokkaido constitutes the largest area, occupying 460 km², which accounts for 42% of the total. Following this, the Tohoku region covers 147 km², comprising 13% of the area, while Kyushu similarly holds 13% with an area of 143 km².
Tokai (Central) and Kanto each possess 10% of the area, measuring 107 km² and 104 km², respectively. This distribution highlights a balanced placement of defense facilities in the Chubu region and the metropolitan area.
The remaining regions collectively cover 12% of the area, occupying 137 km². This category encompasses defense facilities in other areas within Japan.
The total area proportion across these regions amounts to 1,098 km², illustrating the overall spatial distribution of defense facilities within Japan. The detailed proportions for each region provide valuable insight into the tendencies and balance of Self-Defense Force facilities across different geographical areas in Japan.
| Regional distribution | area | rate |
| region | km2 | ％ |
| Hokkaido | 460 | 42 |
| northeast | 147 | 13 |
| Kyushu | 143 | 13 |
| Tokai (Chubu) | 107 | 10 |
| Kanto | 104 | 10 |
| other | 137 | 12 |
| sum | 1,098 | 100 |
“The distribution of Self-Defense Force facilities (land) based on their respective purposes.”
consideration
According to the provided information, the distribution of Self-Defense Force facilities (land) based on their respective purposes is outlined as follows. The area and their proportional representation for each facility purpose are specified.
Training grounds cover an area of 813 km², equivalent to 74% of the total, marking the most expansive purpose. This extensive area is evidently utilized for a wide array of SDF training and exercise activities.
Airfields encompass an area of 81 km², constituting 7% of the total area, indicating their usage for aviation operations and training.
Barracks occupy 56 km², representing 5% of the area, encompassing facilities associated with accommodations and operational tasks for SDF personnel.
Other purposes account for 148 km², comprising 13% of the total. This category likely includes facilities and functions not categorized within the aforementioned purposes.
The cumulative area proportion for these different purposes amounts to 1,098 km², reflecting the distribution of SDF facilities’ purposes throughout Japan. Given the proportional breakdown for each purpose, this information aids in understanding the functional layout of SDF facilities and their focal areas.
| By Application | area | rate |
| use | km2 | ％ |
| Exercise Ground | 813 | 74 |
| airfield | 81 | 7 |
| Housing | 56 | 5 |
| other | 148 | 13 |
| sum | 1,098 | 100 |
Number and Area of US Military Facilities/Zones [Exclusive Facilities] in Japan
consideration
“According to the provided data, Self-Defense Force facilities (land) are categorized into three divisions. The total number of SDF facilities is 76, with a combined area of 262,610 thousand square meters, constituting 100% of the total.
There are 45 SDF facilities on the mainland (excluding Okinawa), covering a total area of 78,084 thousand square meters. These mainland facilities account for 29.73% of the total, amounting to 0.02% of the national (prefectural) land area.
In Okinawa, there are 31 SDF facilities, with a total area of 184,525 thousand square meters. These facilities in Okinawa represent 70.27% of the total, comprising 8.09% of the national (prefectural) land area.
Through this segmentation-based data, one can grasp the respective numbers, areas, and proportions of SDF facilities on the mainland (excluding Okinawa) and in Okinawa among the overall SDF facilities.”
| division | Number of facilities and areas | Area (1,000㎡) | Percentage of total area | Ratio of land area to total area |
| whole | 76 | 262,610 | 100% | 0.07% |
| Mainland (excluding Okinawa) | 45 | 78,084 | 29.73% | 0.02% |
| Okinawa | 31 | 184,525 | 70.27% | 8.09% |
・Based on Article 2, Paragraph 1(a) of the Japan-U.S. Status of Forces Agreement, facilities and areas used by the U.S. military (managed by the U.S. side) Pursuant to Article 2, Paragraph 4(a)
of the same agreement, it includes those used by the Self-Defense Forces, etc. It is an area of.
・ The figures may not match because they are rounded.
・The breakdown is as shown in the attached “List of U.S. Forces Facilities and Areas (Dedicated Facilities) in Japan.”
