Japan Postal Code Database

Browse postal code data for Japan.

Country Information

CountryJapan
ISO CodeJP / JPN
LanguageJapanese
Total Records146,447

Japan uses a numeric code of 7 digits (e.g. 123-4567). Seven-digit postal code displayed as NNN-NNNN.

This database currently holds 146,447 postal codes ranging from 001-0000 to 999-8531, linked to 0 building and address records. Because a single postal code can cover more than one locality or delivery point, the lookup below groups addresses by code and lets you drill into the individual records.

Postal codes matter well beyond mail delivery. Couriers, e-commerce checkout forms and address autocomplete tools rely on the postal code to route a parcel and to verify that the stated address matches the code. Addresses here are organised as Prefecture → Municipality → Ward / District / Locality. When you look up a code here, treat the associated name as a reference point rather than a full postal address — always confirm the street and house number with the sender or recipient before shipping.

Data source: a third-party open dataset. This is an imported reference dataset, not a live government feed; CodeReff does not independently verify each record, so codes may have changed since the snapshot was taken. Use the search box to look up a specific code, or browse the paginated table below.

Japan Postal Code Data

142,577 postal code found

Postal Code Prefecture Municipality Ward / District / Locality Building / Place Records
999-8145 Yamagata Ken Yasuoka Sakata Shi Sakata Shi 1
999-8151 Yamagata Ken Yasuda Sakata Shi Sakata Shi 1
999-8152 Yamagata Ken Kamiyasuda Sakata Shi Sakata Shi 1
999-8153 Yamagata Ken Ennoji Sakata Shi Sakata Shi 1
999-8154 Yamagata Ken Furuaodo Sakata Shi Sakata Shi 1
999-8155 Yamagata Ken Soneda Sakata Shi Sakata Shi 1
999-8156 Yamagata Ken Kubota Sakata Shi Sakata Shi 1
999-8157 Yamagata Ken Niiaodo Sakata Shi Sakata Shi 1
999-8158 Yamagata Ken Nunome Sakata Shi Sakata Shi 1
999-8161 Yamagata Ken Yoshida Sakata Shi Sakata Shi 1
999-8162 Yamagata Ken Kaminosone Sakata Shi Sakata Shi 1
999-8163 Yamagata Ken Kamikoya Sakata Shi Sakata Shi 1
999-8164 Yamagata Ken Urushizone Sakata Shi Sakata Shi 1
999-8165 Yamagata Ken Nakanosone Sakata Shi Sakata Shi 1
999-8166 Yamagata Ken Makisone Sakata Shi Sakata Shi 1
999-8167 Yamagata Ken Yoshidashinden Sakata Shi Sakata Shi 1
999-8168 Yamagata Ken Tsuruta Sakata Shi Sakata Shi 1
999-8201 Yamagata Ken Masuda Sakata Shi Sakata Shi 1
999-8202 Yamagata Ken Dorozawa Sakata Shi Sakata Shi 1
999-8203 Yamagata Ken Akahage Sakata Shi Sakata Shi 1
999-8204 Yamagata Ken Shinde Sakata Shi Sakata Shi 1
999-8205 Yamagata Ken Shimokurokawa Sakata Shi Sakata Shi 1
999-8206 Yamagata Ken Kamikurokawa Sakata Shi Sakata Shi 1
999-8207 Yamagata Ken Kusatsu Sakata Shi Sakata Shi 1
999-8211 Yamagata Ken Kitaaosawa Sakata Shi Sakata Shi 1
999-8212 Yamagata Ken Kamiaosawa Sakata Shi Sakata Shi 1
999-8213 Yamagata Ken Shimoaosawa Sakata Shi Sakata Shi 1
999-8214 Yamagata Ken Jozenji Sakata Shi Sakata Shi 1
999-8215 Yamagata Ken Owarabi Sakata Shi Sakata Shi 1
999-8221 Yamagata Ken Terada Sakata Shi Sakata Shi 1
999-8222 Yamagata Ken Kitaheizawa Sakata Shi Sakata Shi 1
999-8223 Yamagata Ken Minamiheizawa Sakata Shi Sakata Shi 1
999-8224 Yamagata Ken Maekawa Sakata Shi Sakata Shi 1
999-8225 Yamagata Ken Oshimada Sakata Shi Sakata Shi 1
999-8226 Yamagata Ken Mandokoro Sakata Shi Sakata Shi 1
999-8227 Yamagata Ken Okashimada Sakata Shi Sakata Shi 1
999-8231 Yamagata Ken Fumoto Sakata Shi Sakata Shi 1
999-8232 Yamagata Ken Ichijo Sakata Shi Sakata Shi 1
999-8233 Yamagata Ken Horenji Sakata Shi Sakata Shi 1
999-8234 Yamagata Ken Koizumi Sakata Shi Sakata Shi 1
999-8235 Yamagata Ken Kannonji Sakata Shi Sakata Shi 1
999-8241 Yamagata Ken Fukuyama Sakata Shi Sakata Shi 1
999-8242 Yamagata Ken Hashimoto Sakata Shi Sakata Shi 1
999-8243 Yamagata Ken Kitajinden Sakata Shi Sakata Shi 1
999-8244 Yamagata Ken Okubo Sakata Shi Sakata Shi 1
999-8245 Yamagata Ken Tsukabuchi Sakata Shi Sakata Shi 1
999-8246 Yamagata Ken Setsuda Sakata Shi Sakata Shi 1
999-8292 Yamagata Ken Kanonji Sakata Shi Sakata Shi 1
999-8300 Yamagata Ken Yuza Machi Akumi Gun Akumi Gun 1
999-8301 Yamagata Ken Yuza Akumi Gun Akumi Gun 1

Postal Codes by Region

Hokkaido (9,426) Aichi Ken (9,241) Tokyo To (8,751) Kyoto Fu (6,714) Niigata Ken (6,013) Hyogo Ken (5,667) Osaka Fu (4,717) Fukushima Ken (4,280) Chiba Ken (4,225) Fukuoka Ken (4,144) Miyagi Ken (3,816) Gifu Ken (3,795) Shizuoka Ken (3,702) Saitama Ken (3,654) Toyama Ken (3,607) Ibaraki Ken (3,156) Kanagawa Ken (3,109) Ishikawa Ken (3,001) Mie Ken (2,787) Aomori Ken (2,732) Hiroshima Ken (2,657) Okayama Ken (2,573) Fukui Ken (2,545) Akita Ken (2,303) Nagano Ken (2,274) Iwate Ken (2,264) Kumamoto Ken (2,153) Nagasaki Ken (2,110) Yamagata Ken (2,103) Nara Ken (2,097)

Postal Codes by City

Hommachi (355) Chuo (295) Sakaemachi (212) Shimmachi (198) Motomachi (166) Asahimachi (164) Marunochi (150) Nakamachi (142) Odecho (133) Saiwaicho (132) Midoricho (131) Minamimachi (125) Honcho (125) Higashimachi (122) Midorigaoka (120) Hongo (118) Nishimachi (110) Chuocho (104) Minatomachi (103) Izumicho (100) Asahicho (99) Nakano (98) Kotobukicho (98) Izumi (95) Nishishinshuku (95) Yamada (92) Suehirocho (91) Saiwaimachi (91) Sakae (90) Akasaka (84)

Frequently Asked Questions

Japan uses a numeric code of 7 digits (e.g. 123-4567). Seven-digit postal code displayed as NNN-NNNN.
Yes. Japan postal codes are a plain numeric string, so a leading zero is part of the code itself. A code beginning with 0 must be written and stored with that zero — it is not the same as the same digits without it.
146,447 This database currently lists
The records are imported from a third-party open dataset, an open reference dataset. CodeReff does not independently verify each entry, so use the information as a reference rather than an official confirmation.
Enter a full or partial postal code, or a building or street name, in the search box above. You can also browse the paginated table and open any code to see its building and address records.

Related Pages

Postcodes Postal Code ZIP Code Japan country page Postcode Finder
Information provided on CodeReff is for reference purposes only. Always verify financial and banking details with the relevant institution before use.