Registry / Japan / Postal code prefixes / 51 /

Japan postal codes starting with 51

Prefix 51 contains 2,734 postal code records across 2,402 mapped localities in Japan.

Verified data profile for Japan prefix 51

Based on 2,759 records, 2,734 postal code values and 2,402 mapped localities. Coordinate coverage is 100.0%.

2,759

Records

2,734

Postal identifiers

100.0%

Geocoded

510-0000

Example code

Postal code	Locality	Administrative path	Coordinates
510-0000	Asahi Cho	Mie Ken / Mie Gun / Asahi Cho	34.9949, 136.6321
510-0000	Kawagoe Cho	Mie Ken / Mie Gun / Kawagoe Cho	34.9949, 136.6321
510-0000	Yokkaichi Shi	Mie Ken / Yokkaichi Shi	34.9949, 136.6321
510-0001	Hatta	Mie Ken / Yokkaichi Shi	34.9945, 136.6411
510-0002	Hazunaka	Mie Ken / Yokkaichi Shi	34.9938, 136.635
510-0003	Omiyacho	Mie Ken / Yokkaichi Shi	34.991, 136.6305

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/51.

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

2,759

Database rows represented by this canonical route.

Postal identifiers

2,734

Distinct postal code values in this route.

Localities

2,402

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

510-0000

Sample code from Asahi Cho.

Prefix use

range lookup

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

Code	Place	Hierarchy	Coordinates
510-0000	Asahi Cho	Mie Ken / Mie Gun / Asahi Cho	34.9949, 136.6321
510-0000	Kawagoe Cho	Mie Ken / Mie Gun / Kawagoe Cho	34.9949, 136.6321
510-0000	Yokkaichi Shi	Mie Ken / Yokkaichi Shi	34.9949, 136.6321
510-0001	Hatta	Mie Ken / Yokkaichi Shi	34.9945, 136.6411
510-0002	Hazunaka	Mie Ken / Yokkaichi Shi	34.9938, 136.635

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 93

Postal code range · 3,327 records

Prefix 95

Postal code range · 3,274 records

Prefix 98

Postal code range · 3,266 records

Prefix 92

Postal code range · 2,912 records

Prefix 94

Postal code range · 2,680 records

Prefix 91

Postal code range · 2,412 records

Prefix 01

Postal code range · 2,299 records

Prefix 67

Postal code range · 2,277 records

Data questions

What does this postal code prefix cover?

This page lists representative records, localities and nearby ranges for the Japan prefix 51 prefix in Japan.

Is the complete prefix dataset shown here?

The HTML page shows a bounded sample from 2,734 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.

3,327 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.

2,680 codes across 2,415 localities.

2,412 codes across 2,178 localities.

2,299 codes across 2,151 localities.

2,277 codes across 2,167 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
510-0000	Asahi Cho	Mie Ken / Mie Gun / Asahi Cho	34.9949, 136.6321
510-0000	Kawagoe Cho	Mie Ken / Mie Gun / Kawagoe Cho	34.9949, 136.6321
510-0000	Yokkaichi Shi	Mie Ken / Yokkaichi Shi	34.9949, 136.6321
510-0001	Hatta	Mie Ken / Yokkaichi Shi	34.9945, 136.6411
510-0002	Hazunaka	Mie Ken / Yokkaichi Shi	34.9938, 136.635
510-0003	Omiyacho	Mie Ken / Yokkaichi Shi	34.991, 136.6305
510-0004	Omiyanishimachi	Mie Ken / Yokkaichi Shi	34.9927, 136.6283
510-0005	Yamatecho	Mie Ken / Yokkaichi Shi	34.9926, 136.6245
510-0006	Midorigaokacho	Mie Ken / Yokkaichi Shi	34.9944, 136.6225
510-0007	Betsumei	Mie Ken / Yokkaichi Shi	34.9969, 136.6285
510-0008	Minamiikarugacho	Mie Ken / Yokkaichi Shi	35.0012, 136.6291
510-0011	Kasumi	Mie Ken / Yokkaichi Shi	34.9876, 136.636
510-0012	Hazu	Mie Ken / Yokkaichi Shi	34.9876, 136.636
510-0013	Fujicho	Mie Ken / Yokkaichi Shi	34.9844, 136.6397
510-0014	Kanebacho	Mie Ken / Yokkaichi Shi	34.9846, 136.6344
510-0015	Shiroyamacho	Mie Ken / Yokkaichi Shi	34.9862, 136.6323
510-0016	Hazuyamacho	Mie Ken / Yokkaichi Shi	34.9887, 136.6279
510-0017	Hazucho	Mie Ken / Yokkaichi Shi	34.9891, 136.636
510-0018	Shirasuka	Mie Ken / Yokkaichi Shi	34.9917, 136.6449
510-0021	Saburomachi	Mie Ken / Yokkaichi Shi	34.9748, 136.6467
510-0022	Daikyocho	Mie Ken / Yokkaichi Shi	34.975, 136.6375
510-0023	Umaokoshi	Mie Ken / Yokkaichi Shi	34.973, 136.64
510-0024	Shinhamacho	Mie Ken / Yokkaichi Shi	34.9723, 136.6342
510-0025	Toshincho	Mie Ken / Yokkaichi Shi	34.9748, 136.6351
510-0026	Takahamacho	Mie Ken / Yokkaichi Shi	34.9777, 136.6373
510-0027	Takahamashimmachi	Mie Ken / Yokkaichi Shi	34.9768, 136.641
510-0031	Hamaisshikicho	Mie Ken / Yokkaichi Shi	34.9782, 136.6313
510-0032	Kyomachi	Mie Ken / Yokkaichi Shi	34.9764, 136.6305
510-0033	Kawaramachi	Mie Ken / Yokkaichi Shi	34.9745, 136.6284
510-0034	Takigawacho	Mie Ken / Yokkaichi Shi	34.9755, 136.6239
510-0035	Toeicho	Mie Ken / Yokkaichi Shi	34.9785, 136.6256
510-0041	Inabacho	Mie Ken / Yokkaichi Shi	34.9637, 136.638
510-0042	Takasagocho	Mie Ken / Yokkaichi Shi	34.9618, 136.6365
510-0043	Minaminayacho	Mie Ken / Yokkaichi Shi	34.9623, 136.6334
510-0044	Aioicho	Mie Ken / Yokkaichi Shi	34.9632, 136.6321
510-0045	Kuramachi	Mie Ken / Yokkaichi Shi	34.9654, 136.6331
510-0046	Hamamachi	Mie Ken / Yokkaichi Shi	34.9676, 136.6352
510-0047	Kitanayacho	Mie Ken / Yokkaichi Shi	34.9662, 136.6374
510-0048	Nakanayacho	Mie Ken / Yokkaichi Shi	34.9643, 136.6349
510-0051	Chitosecho	Mie Ken / Yokkaichi Shi	34.9546, 136.6357
510-0052	Suehirocho	Mie Ken / Yokkaichi Shi	34.9538, 136.6307
510-0053	Akebono	Mie Ken / Yokkaichi Shi	34.9539, 136.6239
510-0054	Akebonocho	Mie Ken / Yokkaichi Shi	34.9522, 136.6262
510-0055	Kotobukicho	Mie Ken / Yokkaichi Shi	34.9517, 136.6222
510-0056	Minamiokoshicho	Mie Ken / Yokkaichi Shi	34.9549, 136.6271
510-0057	Shoeicho	Mie Ken / Yokkaichi Shi	34.9581, 136.6283
510-0058	Nishisuehirocho	Mie Ken / Yokkaichi Shi	34.96, 136.6307
510-0059	Onoecho	Mie Ken / Yokkaichi Shi	34.9602, 136.634
510-0061	Asahimachi	Mie Ken / Yokkaichi Shi	34.9613, 136.6276
510-0062	Kitahamadacho	Mie Ken / Yokkaichi Shi	34.9615, 136.623
510-0063	Jushichikencho	Mie Ken / Yokkaichi Shi	34.959, 136.6236
510-0064	Shinsho	Mie Ken / Yokkaichi Shi	34.9567, 136.618
510-0065	Nakahamadacho	Mie Ken / Yokkaichi Shi	34.9619, 136.6189
510-0066	Minamihamadacho	Mie Ken / Yokkaichi Shi	34.9611, 136.6168
510-0067	Hamadacho	Mie Ken / Yokkaichi Shi	34.964, 136.62
510-0068	Saneicho	Mie Ken / Yokkaichi Shi	34.9636, 136.6236
510-0069	Saiwaicho	Mie Ken / Yokkaichi Shi	34.9622, 136.6254
510-0071	Nishiura	Mie Ken / Yokkaichi Shi	34.9717, 136.6179
510-0072	Kunoshirocho	Mie Ken / Yokkaichi Shi	34.9638, 136.6145
510-0073	Nishihamadacho	Mie Ken / Yokkaichi Shi	34.9627, 136.6138

Showing 60 representative records from 2,734 matching codes to keep the page fast and crawlable. Download the Japan dataset for complete coverage.