Registry / Japan / Postal code prefixes / 31 /

Japan postal codes starting with 31

Prefix 31 contains 1,353 postal code records across 1,190 mapped localities in Japan.

Verified data profile for Japan prefix 31

Based on 1,359 records, 1,353 postal code values and 1,190 mapped localities. Coordinate coverage is 100.0%.

1,359

Records

1,353

Postal identifiers

100.0%

Geocoded

310-0000

Example code

Postal code	Locality	Administrative path	Coordinates
310-0000	Mito Shi	Ibaraki Ken / Mito Shi	36.3834, 140.4588
310-0001	Kamigachicho	Ibaraki Ken / Mito Shi	36.4186, 140.4544
310-0002	Nakagachicho	Ibaraki Ken / Mito Shi	36.4015, 140.4588
310-0003	Yanakawacho	Ibaraki Ken / Mito Shi	36.4001, 140.4683
310-0004	Aoyagicho	Ibaraki Ken / Mito Shi	36.3947, 140.4805
310-0005	Suifucho	Ibaraki Ken / Mito Shi	36.3782, 140.4855

Postal data context

This page is backed by structured postal records, canonical hierarchy links and representative examples from the current database.

Records

1,359

Database rows represented by this canonical route.

Postal identifiers

1,353

Distinct postal code values in this route.

Localities

1,190

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

310-0000

Sample code from Mito Shi.

Code	Place	Hierarchy
310-0000	Mito Shi	Ibaraki Ken / Mito Shi
310-0001	Kamigachicho	Ibaraki Ken / Mito Shi
310-0002	Nakagachicho	Ibaraki Ken / Mito Shi
310-0003	Yanakawacho	Ibaraki Ken / Mito Shi
310-0004	Aoyagicho	Ibaraki Ken / Mito Shi

Useful related pages

Japan

country · 146,883 records

All prefixes

code_index · 142,577 records

Prefix 48

code_prefix · 1,509 records

Prefix 45

code_prefix · 1,439 records

Prefix 29

code_prefix · 1,432 records

Prefix 09

code_prefix · 1,430 records

Prefix 47

code_prefix · 1,289 records

Prefix 65

code_prefix · 1,281 records

Prefix 42

code_prefix · 1,276 records

Prefix 69

code_prefix · 1,254 records

Data questions

What does this postal code prefix cover?

This page lists representative records, localities and nearby ranges for the Japan prefix 31 prefix.

Is the complete prefix dataset shown here?

The page keeps a bounded sample for fast crawling and points to the country export for complete coverage.

Related prefix ranges in Japan

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

1,509 codes across 1,462 localities.

1,439 codes across 1,305 localities.

1,432 codes across 1,245 localities.

1,430 codes across 1,130 localities.

1,289 codes across 1,065 localities.

1,281 codes across 1,162 localities.

1,276 codes across 946 localities.

1,254 codes across 1,145 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
310-0000	Mito Shi	Ibaraki Ken / Mito Shi	36.3834, 140.4588
310-0001	Kamigachicho	Ibaraki Ken / Mito Shi	36.4186, 140.4544
310-0002	Nakagachicho	Ibaraki Ken / Mito Shi	36.4015, 140.4588
310-0003	Yanakawacho	Ibaraki Ken / Mito Shi	36.4001, 140.4683
310-0004	Aoyagicho	Ibaraki Ken / Mito Shi	36.3947, 140.4805
310-0005	Suifucho	Ibaraki Ken / Mito Shi	36.3782, 140.4855
310-0011	Sannomaru	Ibaraki Ken / Mito Shi	36.3732, 140.4806
310-0012	Joto	Ibaraki Ken / Mito Shi	36.3732, 140.4944
310-0013	Wakamiya	Ibaraki Ken / Mito Shi	36.3755, 140.5024
310-0014	Wakamiyacho	Ibaraki Ken / Mito Shi	36.3802, 140.5022
310-0015	Miyamachi	Ibaraki Ken / Mito Shi	36.3716, 140.4741
310-0021	Minamimachi	Ibaraki Ken / Mito Shi	36.376, 140.4698
310-0022	Baiko	Ibaraki Ken / Mito Shi	36.374, 140.4678
310-0023	Shimobaiko	Ibaraki Ken / Mito Shi	36.376, 140.465
310-0024	Bizemmachi	Ibaraki Ken / Mito Shi	36.3748, 140.4637
310-0025	Tennocho	Ibaraki Ken / Mito Shi	36.3761, 140.4612
310-0026	Izumicho	Ibaraki Ken / Mito Shi	36.3791, 140.463
310-0031	Daikumachi	Ibaraki Ken / Mito Shi	36.3814, 140.4549
310-0032	Motoyamacho	Ibaraki Ken / Mito Shi	36.3784, 140.454
310-0033	Tokiwacho	Ibaraki Ken / Mito Shi	36.3726, 140.4536
310-0034	Midoricho	Ibaraki Ken / Mito Shi	36.381, 140.449
310-0035	Higashihara	Ibaraki Ken / Mito Shi	36.3847, 140.4459
310-0036	Shinso	Ibaraki Ken / Mito Shi	36.3846, 140.4527
310-0041	Kamimito	Ibaraki Ken / Mito Shi	36.3902, 140.4484
310-0042	Jiyugaoka	Ibaraki Ken / Mito Shi	36.3851, 140.4407
310-0043	Matsugaoka	Ibaraki Ken / Mito Shi	36.3868, 140.4358
310-0044	Nishihara	Ibaraki Ken / Mito Shi	36.3894, 140.4398
310-0045	Shinhara	Ibaraki Ken / Mito Shi	36.3933, 140.4358
310-0046	Akebonocho	Ibaraki Ken / Mito Shi	36.3947, 140.444
310-0051	Chitose	Ibaraki Ken / Mito Shi	36.3949, 140.451
310-0052	Matsumotocho	Ibaraki Ken / Mito Shi	36.3926, 140.4557
310-0053	Suehirocho	Ibaraki Ken / Mito Shi	36.3902, 140.4538
310-0054	Atagocho	Ibaraki Ken / Mito Shi	36.3962, 140.4524
310-0055	Hakamatsuka	Ibaraki Ken / Mito Shi	36.3969, 140.4453
310-0056	Bunkyo	Ibaraki Ken / Mito Shi	36.3996, 140.4477
310-0061	Kitamicho	Ibaraki Ken / Mito Shi	36.3792, 140.474
310-0062	Omachi	Ibaraki Ken / Mito Shi	36.3782, 140.4712
310-0063	Gokencho	Ibaraki Ken / Mito Shi	36.3815, 140.4638
310-0064	Sakaecho	Ibaraki Ken / Mito Shi	36.3839, 140.4584
310-0065	Hachimancho	Ibaraki Ken / Mito Shi	36.3884, 140.4588
310-0066	Kanemachi	Ibaraki Ken / Mito Shi	36.3836, 140.4655
310-0067	Nemoto	Ibaraki Ken / Mito Shi	36.3824, 140.4654
310-0068	Nemotocho	Ibaraki Ken / Mito Shi	36.3922, 140.4643
310-0801	Sakuragawa	Ibaraki Ken / Mito Shi	36.369, 140.4751
310-0802	Sakumachi	Ibaraki Ken / Mito Shi	36.3684, 140.4853
310-0803	Jonan	Ibaraki Ken / Mito Shi	36.3659, 140.4788
310-0804	Shiraume	Ibaraki Ken / Mito Shi	36.3633, 140.4792
310-0805	Chuo	Ibaraki Ken / Mito Shi	36.3665, 140.4707
310-0811	Higashisakuragawa	Ibaraki Ken / Mito Shi	36.3695, 140.4993
310-0812	Hamada	Ibaraki Ken / Mito Shi	36.3648, 140.4992
310-0813	Hamadacho	Ibaraki Ken / Mito Shi	36.3674, 140.5023
310-0814	Kawaraya	Ibaraki Ken / Mito Shi	36.3628, 140.4915
310-0815	Honcho	Ibaraki Ken / Mito Shi	36.365, 140.4932
310-0816	Konyacho	Ibaraki Ken / Mito Shi	36.363, 140.4885
310-0817	Yanagimachi	Ibaraki Ken / Mito Shi	36.3662, 140.4886
310-0818	Higashidai	Ibaraki Ken / Mito Shi	36.3679, 140.4944
310-0821	Nakaono	Ibaraki Ken / Mito Shi	36.3563, 140.5401
310-0822	Akutsuono	Ibaraki Ken / Mito Shi	36.3578, 140.5347
310-0823	Higashiono	Ibaraki Ken / Mito Shi	36.3597, 140.5281
310-0824	Nishiono	Ibaraki Ken / Mito Shi	36.3576, 140.5195
310-0825	Yadacho	Ibaraki Ken / Mito Shi	36.3531, 140.5042
310-0826	Shibuicho	Ibaraki Ken / Mito Shi	36.3632, 140.5062
310-0827	Yoshinumacho	Ibaraki Ken / Mito Shi	36.3666, 140.5166
310-0831	Asahicho	Ibaraki Ken / Mito Shi	36.3601, 140.4876
310-0832	Yoshida	Ibaraki Ken / Mito Shi	36.3623, 140.486
310-0833	Fujigaracho	Ibaraki Ken / Mito Shi	36.3611, 140.4841
310-0834	Miyauchicho	Ibaraki Ken / Mito Shi	36.3612, 140.482
310-0835	Motodaimachi	Ibaraki Ken / Mito Shi	36.3575, 140.4814
310-0836	Motoyoshidacho	Ibaraki Ken / Mito Shi	36.3494, 140.4752
310-0841	Sakadocho	Ibaraki Ken / Mito Shi	36.3468, 140.4925
310-0842	Keyakidai	Ibaraki Ken / Mito Shi	36.3666, 140.4864
310-0843	Motoishikawacho	Ibaraki Ken / Mito Shi	36.325, 140.4996
310-0844	Sumiyoshicho	Ibaraki Ken / Mito Shi	36.3332, 140.4723
310-0845	Yoshizawacho	Ibaraki Ken / Mito Shi	36.3278, 140.4597
310-0846	Tonocho	Ibaraki Ken / Mito Shi	36.3248, 140.4488
310-0847	Yonezawacho	Ibaraki Ken / Mito Shi	36.3419, 140.4612
310-0851	Sembacho	Ibaraki Ken / Mito Shi	36.3583, 140.4578
310-0852	Kasaharacho	Ibaraki Ken / Mito Shi	36.3415, 140.4485
310-0853	Hirasucho	Ibaraki Ken / Mito Shi	36.3279, 140.4318
310-0901	Tanocho	Ibaraki Ken / Mito Shi	36.4162, 140.4035

Showing 80 representative records from 1,353 matching codes to keep the page fast and crawlable. Download the Japan dataset for complete coverage.