Postal Code Finder
Registry / Japan / Postal code prefixes / 87 / 870-0309 /

Postal code 870-0309 in Sakanoichinishi, Japan

Postal code 870-0309 is mapped to 1 locality record in Japan with administrative hierarchy and coordinates.

Verified data profile for Postal code 870-0309

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
870-0309
Example code
Postal code Locality Administrative path Coordinates
870-0309 Sakanoichinishi Oita Ken / Oita Shi 33.2289, 131.7479

Related postal lookups

Japan
country
Postal code prefixes
code_index
Prefix 87
code_prefix · 2,030 records
870-0305
nearby_postal_code · 1 records
870-0306
nearby_postal_code · 1 records
870-0307
nearby_postal_code · 1 records
870-0308
nearby_postal_code · 1 records
870-0311
nearby_postal_code · 1 records
870-0312
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/8700309.

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
870-0309
Sample code from Sakanoichinishi.
Code Place Hierarchy Coordinates
870-0309 Sakanoichinishi Oita Ken / Oita Shi 33.2289, 131.7479
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
code_index
Prefix 87
code_prefix · 2,030 records
870-0305
nearby_postal_code · 1 records
870-0306
nearby_postal_code · 1 records
870-0307
nearby_postal_code · 1 records
870-0308
nearby_postal_code · 1 records
870-0311
nearby_postal_code · 1 records
870-0312
nearby_postal_code · 1 records

Data questions

How should I validate 870-0309?

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.

Postal code range

This code belongs to the 87 prefix range for Japan.

View all 87 postal codes

How to validate postal code 870-0309

Treat 870-0309 as a text value, not a number. Postal identifiers can contain leading zeroes, spaces or letters in other countries, so applications should validate the country and original string together. For this page, the code is valid when it appears with one of the mapped localities below and the administrative path belongs to Japan.

Japan lookup
Open the country-level hierarchy and dataset exports.
Browse all prefixes
Compare this code with neighboring country ranges.
Prefix 87
View related codes in the same prefix range.

Mapped localities

Sakanoichinishi
Oita Ken / Oita Shi
33.2289, 131.7479

Common lookup mistakes

A postal code can map to more than one locality record, and the same locality name can appear in different administrative areas. Always compare the country, postal code, place name and region together before treating a match as final.

Coordinates on this page are useful for map previews and approximate area checks. They should be read as locality or postal-area centroids, not as exact delivery addresses. For bulk validation, download the country dataset and keep this canonical URL as the human-readable reference for the code.

Nearby postal code lookups

These neighboring identifiers help compare adjacent code ranges inside Japan. Each link opens a canonical postal-code page with its mapped places and administrative context.

870-0305
Hoso
870-0306
Higashiueno
870-0307
Sakanoichichuo
870-0308
Sakanoichiminami
870-0311
Kida
870-0312
Ichino
870-0313
Yayama
870-0314
Kudo