Designated cities
Postal/ZIP Codes in Sapporo, Hokkaido (札幌市)
Postal/ZIP Codes in Furubira, Hokkaido (古平郡)
Postal/ZIP Codes in Futami, Hokkaido (二海郡)
Postal/ZIP Codes in Hidaka, Hokkaido (日高郡)
Postal/ZIP Codes in Hiro, Hokkaido (広尾郡)
Postal/ZIP Codes in Hiyama, Hokkaido (檜山郡)
Postal/ZIP Codes in Horoizumi, Hokkaido (幌泉郡)
Postal/ZIP Codes in Ishikari, Hokkaido (石狩郡)
Postal/ZIP Codes in Isoya, Hokkaido (磯谷郡)
Postal/ZIP Codes in Iwanai, Hokkaido (岩内郡)
Postal/ZIP Codes in Kabato, Hokkaido (樺戸郡)
Postal/ZIP Codes in Kameda, Hokkaido (亀田郡)
Postal/ZIP Codes in Kamiiso, Hokkaido (上磯郡)
Postal/ZIP Codes in Kamikawa, Hokkaido (上川郡)
Postal/ZIP Codes in Kasai, Hokkaido (河西郡)
Postal/ZIP Codes in Kato, Hokkaido (河東郡)
Postal/ZIP Codes in Kawakami, Hokkaido (川上郡)
Postal/ZIP Codes in Kayabe, Hokkaido (茅部郡)
Postal/ZIP Codes in Kudo, Hokkaido (久遠郡)
Postal/ZIP Codes in Kushiro, Hokkaido (釧路郡)
Postal/ZIP Codes in Mashike, Hokkaido (増毛郡)
Postal/ZIP Codes in Matsumae, Hokkaido (松前郡)
Postal/ZIP Codes in Menashi, Hokkaido (目梨郡)
Postal/ZIP Codes in Mombetsu, Hokkaido (紋別郡)
Postal/ZIP Codes in Nakagawa, Hokkaido (中川郡)
Postal/ZIP Codes in Niikappu, Hokkaido (新冠郡)
Postal/ZIP Codes in Nishi, Hokkaido (爾志郡)
Postal/ZIP Codes in Notsuke, Hokkaido (野付郡)
Postal/ZIP Codes in Okushiri, Hokkaido (奥尻郡)
Postal/ZIP Codes in Rebun, Hokkaido (礼文郡)
Postal/ZIP Codes in Asahikawa (旭川市)
Postal/ZIP Codes in Hakodate (函館市)
Postal/ZIP Codes in Nayoro (名寄市)
Postal/ZIP Codes in Nemuro (根室市)
Postal/ZIP Codes in Shibetsu (士別市)
Postal/ZIP Codes in Sunagawa (砂川市)
Postal/ZIP Codes in Takikawa (滝川市)
Postal/ZIP Codes in Tomakomai (苫小牧市)
Postal/ZIP Codes in Utashinai (歌志内市)
Postal/ZIP Codes in Wakkanai (稚内市)
Postal/ZIP Codes in Yubari (夕張市)
Postal/ZIP Codes in Noboribetsu (登別市)
Postal/ZIP Codes in Obihiro (帯広市)
Postal/ZIP Codes in Otaru (小樽市)
Postal/ZIP Codes in Abashiri (網走市)
Postal/ZIP Codes in Akabira (赤平市)
Postal/ZIP Codes in Ashibetsu (芦別市)
Postal/ZIP Codes in Bibai (美唄市)
Postal/ZIP Codes in Chitose (千歳市)
Postal/ZIP Codes in Date (伊達市)
Postal/ZIP Codes in Ebetsu (江別市)
Postal/ZIP Codes in Eniwa (恵庭市)
Postal/ZIP Codes in Fukagawa (深川市)
Postal/ZIP Codes in Furano (富良野市)
Postal/ZIP Codes in Hokuto (北斗市)
Postal/ZIP Codes in Ishikari (石狩市)
Postal/ZIP Codes in Iwamizawa (岩見沢市)
Postal/ZIP Codes in Kitahiroshima (北広島市)
Postal/ZIP Codes in Kitami (北見市)
Postal/ZIP Codes in Kushiro (釧路市)
Postal/ZIP Codes in Mikasa (三笠市)
Postal/ZIP Codes in Rumoi (留萌市)
Postal/ZIP Codes in Mombetsu (紋別市)
Postal/ZIP Codes in Muroran (室蘭市)