Postal Code Finder
Registry / Japan / Postal code prefixes / 99 / 999-8422 /

Postal code 999-8422 in Chiyoda, Japan

📍 What is My Postal Code?

Postal code 999-8422 covers 1 verified locality record in Japan with interactive boundary centroid map and administrative hierarchy.

Mapped Localities for 999-8422

1 Place
Chiyoda
999-8422
Yamagata Ken · Sakata Shi
📍 38.9945, 139.886

Interactive Map: 999-8422 (Japan)

Geographic Centroid & Coverage: Highlighted marker and radius show the verified WGS84 postal area centroid for 999-8422.

Nearby postal code lookups in Japan

Compare 999-8422 with adjacent postal codes in the same area or prefix range:

999-8315
Owarabioka
999-8316
Toyoka
999-8317
Komatsu
999-8421
Yoneshima
999-8423
Miyauchi
999-8431
Sugasato(Jurizuka)
999-8432
Miyada
999-8433
Eji

Postal code prefix range: 99

Postal code 999-8422 belongs to the 99 prefix district in Japan.

View all 99 postal codes → Japan Directory

Verified data profile for Postal code 999-8422

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
999-8422
Example code
Postal code Locality Administrative path Coordinates
999-8422 Chiyoda Yamagata Ken / Sakata Shi 38.9945, 139.886

Related postal lookups

Japan
Country
Postal code prefixes
Postal code prefixes
Prefix 99
Postal code range · 2,093 records
999-8315
Nearby postal code · 1 records
999-8316
Nearby postal code · 1 records
999-8317
Nearby postal code · 1 records
999-8421
Nearby postal code · 1 records
999-8423
Nearby postal code · 1 records
999-8431
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/9998422.

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
999-8422
Sample code from Chiyoda.
Code Place Hierarchy Coordinates
999-8422 Chiyoda Yamagata Ken / Sakata Shi 38.9945, 139.886
Download postal data
CSV, JSON and XLSX exports for research, validation and data products.
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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
999-8315
Nearby postal code · 1 records
999-8316
Nearby postal code · 1 records
999-8317
Nearby postal code · 1 records
999-8421
Nearby postal code · 1 records
999-8423
Nearby postal code · 1 records
999-8431
Nearby postal code · 1 records

Data questions

How should I validate 999-8422?

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.