- Nakasatsunai Village Council | Nakasatsunai Village Office, Higashi 1-jo Minami 1-2-1, Nakasatsunai Village, Kasai District, Hokkaido 089-1341
Rivers
Ezumi River
- Ezumi River 3.3KP | 5-chome Nishi 2-jo Minami, Nakasatsunai-mura, Kasai-gun, Hokkaido 089-1332 | Ministry of Land, Infrastructure, Transport and Tourism
Satsunai River
- Directly Below Satsunai River Dam | Minamisatsunai, Nakasatsunai Village, Kasai District, Hokkaido 089-1374 | Hokkaido Development Bureau
- Kamisatsunai Bridge, Satsunai River Right Bank 41.8KP | Satsunai River Kamisatsunai Bridge CCTV, Motosatsunai Nishi 1 Line, Nakasatsunai Village, Kasai District, Hokkaido 089-1372 | Hokkaido Development Bureau