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
999-6701 Yamagata Ken Sagoshi Sakata Shi Sakata Shi 1
999-6702 Yamagata Ken Sagoshimidoricho Sakata Shi Sakata Shi 1
999-6703 Yamagata Ken Tenjindo Sakata Shi Sakata Shi 1
999-6704 Yamagata Ken Ishibashi Sakata Shi Sakata Shi 1
999-6705 Yamagata Ken Sakurabayashi Sakata Shi Sakata Shi 1
999-6706 Yamagata Ken Sakurabayashikoya Sakata Shi Sakata Shi 1
999-6707 Yamagata Ken Koriyama Sakata Shi Sakata Shi 1
999-6708 Yamagata Ken Izumikoya Sakata Shi Sakata Shi 1
999-6711 Yamagata Ken Asuka Sakata Shi Sakata Shi 1
999-6712 Yamagata Ken Narahashi Sakata Shi Sakata Shi 1
999-6721 Yamagata Ken Horinochi Sakata Shi Sakata Shi 1
999-6722 Yamagata Ken Nakanome Sakata Shi Sakata Shi 1
999-6723 Yamagata Ken Sannomiya Sakata Shi Sakata Shi 1
999-6724 Yamagata Ken Yamadate Sakata Shi Sakata Shi 1
999-6725 Yamagata Ken Yamayashinden Sakata Shi Sakata Shi 1
999-6726 Yamagata Ken Yamaya Sakata Shi Sakata Shi 1
999-6727 Yamagata Ken Nakanomata Sakata Shi Sakata Shi 1
999-6731 Yamagata Ken Tazawa Sakata Shi Sakata Shi 1
999-6732 Yamagata Ken Tateyama Sakata Shi Sakata Shi 1
999-6733 Yamagata Ken Nishisakamoto Sakata Shi Sakata Shi 1
999-6734 Yamagata Ken Yamamoto Sakata Shi Sakata Shi 1
999-6735 Yamagata Ken Kobayashi Sakata Shi Sakata Shi 1
999-6741 Yamagata Ken Kitamata Sakata Shi Sakata Shi 1
999-6801 Yamagata Ken Furukuchi(Kashizawa) Mogami Gun Mogami Gun 1
999-6811 Yamagata Ken Kashiyazawa Sakata Shi Sakata Shi 1
999-6812 Yamagata Ken Narikoya Sakata Shi Sakata Shi 1
999-6813 Yamagata Ken Okawado Sakata Shi Sakata Shi 1
999-6814 Yamagata Ken Jimikoya Sakata Shi Sakata Shi 1
999-6815 Yamagata Ken Usugasawa Sakata Shi Sakata Shi 1
999-6816 Yamagata Ken Onumashinden Sakata Shi Sakata Shi 1
999-6821 Yamagata Ken Yamadera Sakata Shi Sakata Shi 1
999-6822 Yamagata Ken Minamishinyashiki Sakata Shi Sakata Shi 1
999-6823 Yamagata Ken Shingakujisawa Sakata Shi Sakata Shi 1
999-6824 Yamagata Ken Motoshinyashiki Sakata Shi Sakata Shi 1
999-6825 Yamagata Ken Minamimachi Sakata Shi Sakata Shi 1
999-6826 Yamagata Ken Inarizawa Sakata Shi Sakata Shi 1
999-6827 Yamagata Ken Nakamachi Sakata Shi Sakata Shi 1
999-6831 Yamagata Ken Sokojisawa Sakata Shi Sakata Shi 2
999-6832 Yamagata Ken Shinyashiki Sakata Shi Sakata Shi 1
999-6833 Yamagata Ken Kitamachi Sakata Shi Sakata Shi 1
999-6834 Yamagata Ken Aramachi Sakata Shi Sakata Shi 1
999-6835 Yamagata Ken Hommachi Sakata Shi Sakata Shi 2
999-6836 Yamagata Ken Sakanamachi Sakata Shi Sakata Shi 1
999-6837 Yamagata Ken Kanaya Sakata Shi Sakata Shi 2
999-6838 Yamagata Ken Katamachi Sakata Shi Sakata Shi 1
999-6839 Yamagata Ken Tsuchibuchi Sakata Shi Sakata Shi 1
999-6841 Yamagata Ken Myogasawa Sakata Shi Sakata Shi 1
999-6842 Yamagata Ken Kamimochiyama Sakata Shi Sakata Shi 1
999-6843 Yamagata Ken Kamikitame Sakata Shi Sakata Shi 1
999-6844 Yamagata Ken Nakakitame Sakata Shi Sakata Shi 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.