すべて 郵便番号 の Iwanai Gun

045-0000 - Iwanai Cho
045-0001 - Ohama
045-0002 - Higashiyama
045-0003 - Mandai
045-0011 - Sakae
045-0012 - Miyazono
045-0013 - Takadai
045-0021 - Yamato
045-0022 - Kiyozumi
045-0023 - Aioi
045-0024 - Nozuka
045-0025 - Shikishimanai
045-0026 - Misaki
045-0031 - Riyamunai
045-0032 - Oikomi
045-0121 - Horoni
045-0122 - Hattari
045-0123 - Miyaoka
045-8555 - 岩内町役場
045-8609 - 岩内公共職業安定所
048-2141 - Waisu
048-2142 - Kozawa
048-2143 - Kunitomi
048-2200 - Kyowa Cho
048-2201 - Maeda
048-2202 - Minamihoroni
048-2292 - Minamihoroni