Postal Code Finder
Registry / United Kingdom / Postal code prefixes / CM2 / CM23 /

Postal code CM23 in Berden, United Kingdom

Postal code CM23 is mapped to 10 locality records in United Kingdom with administrative hierarchy and coordinates.

Verified data profile for Postal code CM23

Based on 10 records, 1 postal code values and 10 mapped localities. Coordinate coverage is 100.0%.

10
Records
1
Postal identifiers
100.0%
Geocoded
CM23
Example code
Postal code Locality Administrative path Coordinates
CM23 Berden England / Essex 51.9475, 0.1355
CM23 Birchanger England / Essex 51.8837, 0.1916
CM23 Bishop's Stortford England / Hertfordshire 51.8711, 0.1587
CM23 Farnham England / Essex 51.9023, 0.1421
CM23 Farnham Green England / Essex 51.8954, 0.1562
CM23 Hazel End England / Essex 51.8954, 0.1562

Related postal lookups

United Kingdom
country
Postal code prefixes
code_index
Prefix CM2
code_prefix · 6 records
CM2
nearby_postal_code · 8 records
CM20
nearby_postal_code · 3 records
CM21
nearby_postal_code · 3 records
CM22
nearby_postal_code · 14 records
CM24
nearby_postal_code · 1 records
CM3
nearby_postal_code · 40 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/united-kingdom/code/cm23.

Records
10
Database rows represented by this canonical route.
Postal identifiers
1
Distinct postal code values available for this page.
Localities
10
Mapped place names or administrative entries.
Coordinate coverage
100.0%
Rows with latitude and longitude available.
Example
CM23
Sample code from Berden.
Code Place Hierarchy
CM23 Berden England / Essex
CM23 Birchanger England / Essex
CM23 Bishop's Stortford England / Hertfordshire
CM23 Farnham England / Essex
CM23 Farnham Green England / Essex
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

United Kingdom
country
Postal code prefixes
code_index
Prefix CM2
code_prefix · 6 records
CM2
nearby_postal_code · 8 records
CM20
nearby_postal_code · 3 records
CM21
nearby_postal_code · 3 records
CM22
nearby_postal_code · 14 records
CM24
nearby_postal_code · 1 records
CM3
nearby_postal_code · 40 records

Data questions

How should I validate CM23?

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 CM2 prefix range for United Kingdom.

View all CM2 postal codes

How to validate postal code CM23

Treat CM23 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 United Kingdom.

United Kingdom lookup
Open the country-level hierarchy and dataset exports.
Browse all prefixes
Compare this code with neighboring country ranges.
Prefix CM2
View related codes in the same prefix range.

Mapped localities

Berden
England / Essex
51.9475, 0.1355
Birchanger
England / Essex
51.8837, 0.1916
Bishop's Stortford
England / Hertfordshire
51.8711, 0.1587
Farnham
England / Essex
51.9023, 0.1421
Farnham Green
England / Essex
51.8954, 0.1562
Hazel End
England / Essex
51.8954, 0.1562
Manuden
England / Essex
51.9189, 0.1672
Spellbrook
England / Essex
51.8954, 0.1562
Thorley
England / Hertfordshire
51.8488, 0.1419
Thorley Street
England / Essex
51.8954, 0.1562

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

CM2
Galleyend
CM20
Eastwick
CM21
Allen's Green
CM22
Bamber's Green
CM24
Stansted Mountfitchet
CM3
Althorne
CM4
Blackmore
CM5
Abbess Roding