Postal Code Finder
Registry / Netherlands / Postal code prefixes / 912 / 9121 /

Postal code 9121 in Aalsum, Netherlands

Postal code 9121 is mapped to 1 locality record in Netherlands with administrative hierarchy and coordinates.

Verified data profile for Postal code 9121

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
9121
Example code
Postal code Locality Administrative path Coordinates
9121 Aalsum Friesland / Noardeast-Fryslân 53.3411, 6.0049

Related postal lookups

Netherlands
Country
Postal code prefixes
Postal code prefixes
Prefix 912
Postal code range · 5 records
9111
Nearby postal code · 1 records
9112
Nearby postal code · 1 records
9113
Nearby postal code · 1 records
9114
Nearby postal code · 1 records
9122
Nearby postal code · 1 records
9123
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/netherlands/code/9121.

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
9121
Sample code from Aalsum.
Code Place Hierarchy Coordinates
9121 Aalsum Friesland / Noardeast-Fryslân 53.3411, 6.0049
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

Netherlands
Country
Postal code prefixes
Postal code prefixes
Prefix 912
Postal code range · 5 records
9111
Nearby postal code · 1 records
9112
Nearby postal code · 1 records
9113
Nearby postal code · 1 records
9114
Nearby postal code · 1 records
9122
Nearby postal code · 1 records
9123
Nearby postal code · 1 records

Data questions

How should I validate 9121?

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 912 prefix range for Netherlands.

View all 912 postal codes

How to validate postal code 9121

Treat 9121 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 Netherlands.

Netherlands lookup
Open the country-level hierarchy and dataset exports.
Browse all prefixes
Compare this code with neighboring country ranges.
Prefix 912
View related codes in the same prefix range.

Mapped localities

Aalsum
Friesland / Noardeast-Fryslân
53.3411, 6.0049

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 Netherlands. Each link opens a canonical postal-code page with its mapped places and administrative context.

9111
Burdaard
9112
Burdaard
9113
Wâlterswâld
9114
Driezum
9122
Wetsens
9123
Mitselwier
9124
Jouswier
9125
Eastrum