Registry / Japan / Postal code prefixes / 10 /

Japan postal codes starting with 10

Prefix 10 contains 3,476 postal code records across 1,440 mapped localities in Japan.

Verified data profile for Japan prefix 10

Based on 3,503 records, 3,476 postal code values and 1,440 mapped localities. Coordinate coverage is 100.0%.

3,503

Records

3,476

Postal identifiers

100.0%

Geocoded

100-0000

Example code

Postal code	Locality	Administrative path	Coordinates
100-0000	Chiyoda Ku	Tokyo To / Chiyoda Ku	35.6738, 139.7616
100-0001	Chiyoda	Tokyo To / Chiyoda Ku	35.6841, 139.7521
100-0002	Kokyogaien	Tokyo To / Chiyoda Ku	35.6799, 139.7585
100-0003	Hitotsubashi(1-Chome)	Tokyo To / Chiyoda Ku	35.6738, 139.7616
100-0004	Otemachi (Tsuginobiruonozoku)	Tokyo To / Chiyoda Ku	35.6738, 139.7616
100-0005	Marunochi (Tsuginobiruonozoku)	Tokyo To / Chiyoda Ku	35.6738, 139.7616

Prefix coverage and examples

Use this page to understand country coverage, postal code formats, prefixes and the most useful child pages for lookup or download. The canonical route for this record set is /postal-codes/japan/codes/10.

How to use this lookup

Use the sample rows to verify what the prefix actually covers.
Compare neighboring prefixes when a city or district spans multiple ranges.
Download the country dataset when you need every code in the prefix.

Records

3,503

Database rows represented by this canonical route.

Postal identifiers

3,476

Distinct postal code values in this route.

Localities

1,440

Mapped place names or administrative entries.

Coordinate coverage

100.0%

Rows with latitude and longitude available.

Detected format

7 digits (NNN-NNNN)

Japanese postal codes use seven digits, commonly formatted with a hyphen after the third digit.

Example

100-0000

Sample code from Chiyoda Ku.

Prefix use

range lookup

Use this range when you know the first digits or letters but need matching localities.

Code	Place	Hierarchy	Coordinates
100-0000	Chiyoda Ku	Tokyo To / Chiyoda Ku	35.6738, 139.7616
100-0001	Chiyoda	Tokyo To / Chiyoda Ku	35.6841, 139.7521
100-0002	Kokyogaien	Tokyo To / Chiyoda Ku	35.6799, 139.7585
100-0003	Hitotsubashi(1-Chome)	Tokyo To / Chiyoda Ku	35.6738, 139.7616
100-0004	Otemachi (Tsuginobiruonozoku)	Tokyo To / Chiyoda Ku	35.6738, 139.7616

Download postal data

CSV, JSON and XLSX exports for research, validation and data products.

Use the API

Query postal codes by country, place name, region or code prefix.

Implementation notes

Field definitions, canonical paths and practical lookup guidance.

Useful related pages

Japan

Country · 146,883 records

All prefixes

Postal code prefixes · 142,577 records

Prefix 50

Postal code range · 3,764 records

Prefix 60

Postal code range · 3,535 records

Prefix 96

Postal code range · 3,342 records

Prefix 93

Postal code range · 3,327 records

Prefix 95

Postal code range · 3,274 records

Prefix 98

Postal code range · 3,266 records

Data questions

What does this postal code prefix cover?

This page lists representative records, localities and nearby ranges for the Japan prefix 10 prefix in Japan.

Is the complete prefix dataset shown here?

The HTML page shows a bounded sample from 3,476 matching identifiers and points to the country export for complete coverage.

How should I use a prefix page?

Use it to narrow a lookup when you know the first characters of the code, then confirm locality, region and coordinates.

Related prefix ranges in Japan

Compare this range with other active postal code prefixes from the same country-level directory.

3,764 codes across 3,302 localities.

3,535 codes across 3,286 localities.

3,342 codes across 3,179 localities.

3,327 codes across 3,037 localities.

3,274 codes across 2,669 localities.

3,266 codes across 3,317 localities.

2,912 codes across 2,491 localities.

2,734 codes across 2,402 localities.

Representative postal code examples

This page keeps a bounded sample for fast crawling and links each code to its canonical lookup page. Use the country export when you need the full prefix dataset.

Postal code	Locality	Region	Coordinates
100-0000	Chiyoda Ku	Tokyo To / Chiyoda Ku	35.6738, 139.7616
100-0001	Chiyoda	Tokyo To / Chiyoda Ku	35.6841, 139.7521
100-0002	Kokyogaien	Tokyo To / Chiyoda Ku	35.6799, 139.7585
100-0003	Hitotsubashi(1-Chome)	Tokyo To / Chiyoda Ku	35.6738, 139.7616
100-0004	Otemachi (Tsuginobiruonozoku)	Tokyo To / Chiyoda Ku	35.6738, 139.7616
100-0005	Marunochi (Tsuginobiruonozoku)	Tokyo To / Chiyoda Ku	35.6738, 139.7616
100-0006	Yurakucho	Tokyo To / Chiyoda Ku	35.6738, 139.7616
100-0011	Uchisaiwaicho	Tokyo To / Chiyoda Ku	35.6708, 139.7561
100-0012	Hibiyakoen	Tokyo To / Chiyoda Ku	35.6739, 139.7562
100-0013	Kasumigaseki (Tsuginobiruonozoku)	Tokyo To / Chiyoda Ku	35.6708, 139.7561
100-0014	Nagatacho (Tsuginobiruonozoku)	Tokyo To / Chiyoda Ku	35.6708, 139.7561
100-0100	Oshima Machi	Tokyo To / Oshima Machi	34.7533, 139.3892
100-0101	Motomachi	Tokyo To / Oshima Machi	34.7609, 139.3724
100-0102	Okata	Tokyo To / Oshima Machi	34.7781, 139.3871
100-0103	Senzu	Tokyo To / Oshima Machi	34.7571, 139.42
100-0104	Nomashi	Tokyo To / Oshima Machi	34.7169, 139.3772
100-0211	Sashikiji	Tokyo To / Oshima Machi	34.7066, 139.4212
100-0212	Habuminato	Tokyo To / Oshima Machi	34.6989, 139.4437
100-0301	Toshimamuraichien	Tokyo To / Toshima Mura	35.1442, 139.5556
100-0400	Niijima Mura	Tokyo To / Niijima Mura	34.4184, 139.2851
100-0401	Wakago	Tokyo To / Niijima Mura	34.4184, 139.2851
100-0402	Honson	Tokyo To / Niijima Mura	34.4184, 139.2851
100-0511	Shikinejima	Tokyo To / Niijima Mura	34.3265, 139.2135
100-0601	Kozushimamuraichien	Tokyo To / Kozushima Mura	35.1442, 139.5556
100-2100	Ogasawara Mura	Tokyo To / Ogasawara Mura	27.0712, 142.2096
100-2101	Chichijima	Tokyo To / Ogasawara Mura	27.0712, 142.2096
100-2211	Hahajima	Tokyo To / Ogasawara Mura	26.6601, 142.1558
100-6001	Kasumigaseki Kasumigasekibiru(1-Kai	Tokyo To / Chiyoda Ku	35.694, 139.7536
100-6002	Kasumigaseki Kasumigasekibiru(2-Kai	Tokyo To / Chiyoda Ku	35.694, 139.7536
100-6003	Kasumigaseki Kasumigasekibiru(3-Kai	Tokyo To / Chiyoda Ku	35.694, 139.7536
100-6004	Kasumigaseki Kasumigasekibiru(4-Kai	Tokyo To / Chiyoda Ku	35.694, 139.7536
100-6005	Kasumigaseki Kasumigasekibiru(5-Kai	Tokyo To / Chiyoda Ku	35.694, 139.7536
100-6006	Kasumigaseki Kasumigasekibiru(6-Kai	Tokyo To / Chiyoda Ku	35.694, 139.7536
100-6007	Kasumigaseki Kasumigasekibiru(7-Kai	Tokyo To / Chiyoda Ku	35.694, 139.7536
100-6008	Kasumigaseki Kasumigasekibiru(8-Kai	Tokyo To / Chiyoda Ku	35.694, 139.7536
100-6009	Kasumigaseki Kasumigasekibiru(9-Kai	Tokyo To / Chiyoda Ku	35.694, 139.7536
100-6010	Kasumigaseki Kasumigasekibiru(10-Ka	Tokyo To / Chiyoda Ku	35.694, 139.7536
100-6011	Kasumigaseki Kasumigasekibiru(11-Ka	Tokyo To / Chiyoda Ku	35.694, 139.7536
100-6012	Kasumigaseki Kasumigasekibiru(12-Ka	Tokyo To / Chiyoda Ku	35.694, 139.7536
100-6013	Kasumigaseki Kasumigasekibiru(13-Ka	Tokyo To / Chiyoda Ku	35.694, 139.7536
100-6014	Kasumigaseki Kasumigasekibiru(14-Ka	Tokyo To / Chiyoda Ku	35.694, 139.7536
100-6015	Kasumigaseki Kasumigasekibiru(15-Ka	Tokyo To / Chiyoda Ku	35.694, 139.7536
100-6016	Kasumigaseki Kasumigasekibiru(16-Ka	Tokyo To / Chiyoda Ku	35.694, 139.7536
100-6017	Kasumigaseki Kasumigasekibiru(17-Ka	Tokyo To / Chiyoda Ku	35.694, 139.7536
100-6018	Kasumigaseki Kasumigasekibiru(18-Ka	Tokyo To / Chiyoda Ku	35.694, 139.7536
100-6019	Kasumigaseki Kasumigasekibiru(19-Ka	Tokyo To / Chiyoda Ku	35.694, 139.7536
100-6020	Kasumigaseki Kasumigasekibiru(20-Ka	Tokyo To / Chiyoda Ku	35.694, 139.7536
100-6021	Kasumigaseki Kasumigasekibiru(21-Ka	Tokyo To / Chiyoda Ku	35.694, 139.7536
100-6022	Kasumigaseki Kasumigasekibiru(22-Ka	Tokyo To / Chiyoda Ku	35.694, 139.7536
100-6023	Kasumigaseki Kasumigasekibiru(23-Ka	Tokyo To / Chiyoda Ku	35.694, 139.7536
100-6024	Kasumigaseki Kasumigasekibiru(24-Ka	Tokyo To / Chiyoda Ku	35.694, 139.7536
100-6025	Kasumigaseki Kasumigasekibiru(25-Ka	Tokyo To / Chiyoda Ku	35.694, 139.7536
100-6026	Kasumigaseki Kasumigasekibiru(26-Ka	Tokyo To / Chiyoda Ku	35.694, 139.7536
100-6027	Kasumigaseki Kasumigasekibiru(27-Ka	Tokyo To / Chiyoda Ku	35.694, 139.7536
100-6028	Kasumigaseki Kasumigasekibiru(28-Ka	Tokyo To / Chiyoda Ku	35.694, 139.7536
100-6029	Kasumigaseki Kasumigasekibiru(29-Ka	Tokyo To / Chiyoda Ku	35.694, 139.7536
100-6030	Kasumigaseki Kasumigasekibiru(30-Ka	Tokyo To / Chiyoda Ku	35.694, 139.7536
100-6031	Kasumigaseki Kasumigasekibiru(31-Ka	Tokyo To / Chiyoda Ku	35.694, 139.7536
100-6032	Kasumigaseki Kasumigasekibiru(32-Ka	Tokyo To / Chiyoda Ku	35.694, 139.7536
100-6033	Kasumigaseki Kasumigasekibiru(33-Ka	Tokyo To / Chiyoda Ku	35.694, 139.7536

Showing 60 representative records from 3,476 matching codes to keep the page fast and crawlable. Download the Japan dataset for complete coverage.