| Postal Code | City | Community | County | State | latitude | longitude | Map |
|---|---|---|---|---|---|---|---|
| 311-3106 | Koyasu | Ibaraki Machi | Higashiibaraki Gun | Ibaraki Ken | 36.3064 | 140.3792 | Map |
| 240-0106 | Koyasu | Yokosuka Shi | Kanagawa Ken | 35.2483 | 139.6075 | Map | |
| 259-1102 | Koyasu | Isehara Shi | Kanagawa Ken | 35.4179 | 139.2703 | Map | |
| 981-2181 | Koyasu | Marumori Machi | Igu Gun | Miyagi Ken | 37.9377 | 140.7671 | Map |
| 943-0141 | Koyasu | Joetsu Shi | Niigata Ken | 37.1078 | 138.2764 | Map | |
| 992-0313 | Koyasu | Takahata Machi | Higashiokitama Gun | Yamagata Ken | 37.9409 | 140.1083 | Map |
| 435-0015 | Koyasucho | Higashi Ku | Hamamatsu Shi | Shizuoka Ken | 34.7139 | 137.763 | Map |
| 435-8575 | Koyasucho | Higashi-ku | Hamamatsu Shi | Shizuoka Ken | 34.7497 | 137.7779 | Map |
| 192-0993 | Koyasucho | Hachioji Shi | Tokyo To | 35.6331 | 139.3378 | Map | |
| 221-0012 | Koyasudai | Kanagawa Ku | Yokohama Shi | Kanagawa Ken | 35.4933 | 139.6573 | Map |
| 221-0021 | Koyasudori | Kanagawa Ku | Yokohama Shi | Kanagawa Ken | 35.4931 | 139.6485 | Map |
| 872-0043 | Koyasumachi | Usa Shi | Oita Ken | 33.45 | 131.3366 | Map | |
| 192-0904 | Koyasumachi | Hachioji Shi | Tokyo To | 35.6512 | 139.3403 | Map | |
| 943-0148 | Koyasushinden | Joetsu Shi | Niigata Ken | 37.1096 | 138.2726 | Map |
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