Postal Code Finder
Registry / France / Postal code prefixes / 42 / 42940 /

Postal code 42940 in Châtelneuf, France

Postal code 42940 is mapped to 2 locality records in France with administrative hierarchy and coordinates.

Verified data profile for Postal code 42940

Based on 2 records, 1 postal code values and 2 mapped localities. Coordinate coverage is 100.0%.

2
Records
1
Postal identifiers
100.0%
Geocoded
42940
Example code
Postal code Locality Administrative path Coordinates
42940 Châtelneuf Auvergne-Rhône-Alpes / Loire / Montbrison 45.6384, 3.9824
42940 Saint-Bonnet-le-Courreau Auvergne-Rhône-Alpes / Loire / Montbrison 45.661, 3.9451

Related postal lookups

France
country
Postal code prefixes
code_index
Prefix 42
code_prefix · 233 records
42830
nearby_postal_code · 2 records
42840
nearby_postal_code · 2 records
42890
nearby_postal_code · 1 records
42920
nearby_postal_code · 3 records
42950 CEDEX 1
nearby_postal_code · 1 records
42951 CEDEX 1
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/france/code/42940.

Records
2
Database rows represented by this canonical route.
Postal identifiers
1
Distinct postal code values available for this page.
Localities
2
Mapped place names or administrative entries.
Coordinate coverage
100.0%
Rows with latitude and longitude available.
Example
42940
Sample code from Châtelneuf.
Code Place Hierarchy
42940 Châtelneuf Auvergne-Rhône-Alpes / Loire / Montbrison
42940 Saint-Bonnet-le-Courreau Auvergne-Rhône-Alpes / Loire / Montbrison
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

France
country
Postal code prefixes
code_index
Prefix 42
code_prefix · 233 records
42830
nearby_postal_code · 2 records
42840
nearby_postal_code · 2 records
42890
nearby_postal_code · 1 records
42920
nearby_postal_code · 3 records
42950 CEDEX 1
nearby_postal_code · 1 records
42951 CEDEX 1
nearby_postal_code · 1 records

Data questions

How should I validate 42940?

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 42 prefix range for France.

View all 42 postal codes

How to validate postal code 42940

Treat 42940 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 France.

France lookup
Open the country-level hierarchy and dataset exports.
Browse all prefixes
Compare this code with neighboring country ranges.
Prefix 42
View related codes in the same prefix range.

Mapped localities

Châtelneuf
Auvergne-Rhône-Alpes / Loire / Montbrison
45.6384, 3.9824
Saint-Bonnet-le-Courreau
Auvergne-Rhône-Alpes / Loire / Montbrison
45.661, 3.9451

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

42830
La Tuilière
42840
Combre
42890
Sail-sous-Couzan
42920
Chalmazel
42950 CEDEX 1
Saint-Étienne
42951 CEDEX 1
Saint-Étienne
42952 CEDEX 1
Saint-Étienne
42953 CEDEX 1
Saint-Étienne