Postal Code Finder
Registry / Japan / Postal code prefixes / 99 / 999-5101 /

Postal code 999-5101 in Showa, Japan

📍 What is My Postal Code?

Postal code 999-5101 covers 1 verified locality record in Japan with interactive boundary centroid map and administrative hierarchy.

Mapped Localities for 999-5101

1 Place
Showa
999-5101
Yamagata Ken · Shinjo Shi
📍 38.7882, 140.3399

Interactive Map: 999-5101 (Japan)

Geographic Centroid & Coverage: Highlighted marker and radius show the verified WGS84 postal area centroid for 999-5101.

Nearby postal code lookups in Japan

Compare 999-5101 with adjacent postal codes in the same area or prefix range:

999-4602
Chojahara
999-4603
Tomita
999-4604
Horiuchi
999-4605
Nagasawa
999-5102
Hagino
999-5103
Izumita
999-5191
Tokamachi(Nekoyashiki329-356)
999-5200
Sakegawa Mura

Postal code prefix range: 99

Postal code 999-5101 belongs to the 99 prefix district in Japan.

View all 99 postal codes → Japan Directory

Verified data profile for Postal code 999-5101

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

1
Records
1
Postal identifiers
100.0%
Geocoded
999-5101
Example code
Postal code Locality Administrative path Coordinates
999-5101 Showa Yamagata Ken / Shinjo Shi 38.7882, 140.3399

Related postal lookups

Japan
Country
Postal code prefixes
Postal code prefixes
Prefix 99
Postal code range · 2,093 records
999-4602
Nearby postal code · 1 records
999-4603
Nearby postal code · 1 records
999-4604
Nearby postal code · 1 records
999-4605
Nearby postal code · 1 records
999-5102
Nearby postal code · 1 records
999-5103
Nearby postal code · 1 records

Postal code validation data

Use this page to validate one postal code or locality against real parent areas, nearby records and downloadable source rows. The canonical route for this record set is /postal-codes/japan/code/9995101.

Records
1
Database rows represented by this canonical route.
Postal identifiers
1
Distinct postal code values available for this page.
Localities
1
Mapped place names or administrative entries.
Coordinate coverage
100.0%
Rows with latitude and longitude available.
Example
999-5101
Sample code from Showa.
Code Place Hierarchy Coordinates
999-5101 Showa Yamagata Ken / Shinjo Shi 38.7882, 140.3399
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
Postal code prefixes
Postal code prefixes
Prefix 99
Postal code range · 2,093 records
999-4602
Nearby postal code · 1 records
999-4603
Nearby postal code · 1 records
999-4604
Nearby postal code · 1 records
999-4605
Nearby postal code · 1 records
999-5102
Nearby postal code · 1 records
999-5103
Nearby postal code · 1 records

Data questions

How should I validate 999-5101?

Validate the postal identifier together with country, locality and administrative hierarchy fields, not as a standalone global pattern.

What context is available for this record?

The page includes the parent country, related prefix or nearby codes, coordinates when available and source rows for download/API workflows.