| Postal Code | City | Community | County | State | latitude | longitude | Map |
|---|---|---|---|---|---|---|---|
| 018-5604 | Karuizawa | Odate Shi | Akita Ken | 40.228 | 140.6543 | Map | |
| 012-1243 | Karuizawa | Ugo Machi | Ogachi Gun | Akita Ken | 39.2067 | 140.2672 | Map |
| 273-0131 | Karuizawa | Kamagaya Shi | Chiba Ken | 35.7888 | 140.0007 | Map | |
| 969-7203 | Karuizawa | Yanaizu Machi | Kawanuma Gun | Fukushima Ken | 37.4567 | 139.7088 | Map |
| 389-0193 | Karuizawa | Karuizawa Machi | Kitasaku Gun | Nagano Ken | 36.3478 | 138.6143 | Map |
| 940-0243 | Karuizawa | Nagaoka Shi | Niigata Ken | 37.4333 | 138.9364 | Map | |
| 999-3163 | Karuizawa | Kaminoyama Shi | Yamagata Ken | 38.1637 | 140.279 | Map | |
| 389-0102 | Karuizawa(Oaza) | Karuizawa Machi | Kitasaku Gun | Nagano Ken | 36.3459 | 138.6367 | Map |
| 389-0103 | Karuizawa(Sonota) | Karuizawa Machi | Kitasaku Gun | Nagano Ken | 36.3459 | 138.6367 | Map |
| 630-0265 | Karuizawacho | Ikoma Shi | Nara Ken | 34.6856 | 135.6948 | Map | |
| 389-0104 | Karuizawahigashi | Karuizawa Machi | Kitasaku Gun | Nagano Ken | 36.3459 | 138.6367 | Map |
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