Postal Code Finder
Registry / United Kingdom / Postal code prefixes / CM3 /

Postal code CM3 in Althorne, United Kingdom

Postal code CM3 is mapped to 40 locality records in United Kingdom with administrative hierarchy and coordinates.

Verified data profile for Postal code CM3

Based on 40 records, 1 postal code values and 40 mapped localities. Coordinate coverage is 100.0%.

40
Records
1
Postal identifiers
100.0%
Geocoded
CM3
Example code
Postal code Locality Administrative path Coordinates
CM3 Althorne England / Essex 51.6572, 0.7608
CM3 Bicknacre England / Essex 51.694, 0.5852
CM3 Boreham England / Essex 51.7596, 0.5412
CM3 Cock Clarks England / Essex 51.7221, 0.5846
CM3 Cold Norton England / Essex 51.6721, 0.67
CM3 Crix England / Essex 51.7221, 0.5846

Related postal lookups

United Kingdom
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Postal code prefixes
code_index
CM21
nearby_postal_code · 3 records
CM22
nearby_postal_code · 14 records
CM23
nearby_postal_code · 10 records
CM24
nearby_postal_code · 1 records
CM4
nearby_postal_code · 9 records
CM5
nearby_postal_code · 21 records

How to validate postal code CM3

Treat CM3 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.

Mapped localities

Althorne
England / Essex
51.6572, 0.7608
Bicknacre
England / Essex
51.694, 0.5852
Boreham
England / Essex
51.7596, 0.5412
Cock Clarks
England / Essex
51.7221, 0.5846
Cold Norton
England / Essex
51.6721, 0.67
Crix
England / Essex
51.7221, 0.5846
Danbury
England / Essex
51.7164, 0.5824
East Hanningfield
England / Essex
51.6828, 0.559
Fairstead
England / Essex
51.823, 0.5502
Ford End
England / Essex
51.8251, 0.4313
Fuller Street
England / Essex
51.7221, 0.5846
Gamble's Green
England / Essex
51.7221, 0.5846
Great Canney
England / Essex
51.7221, 0.5846
Great Leighs
England / Essex
51.8276, 0.5064
Great Waltham
England / Essex
51.7938, 0.4567
Hatfield Peverel
England / Essex
51.7759, 0.5949
Hazeleigh
England / Essex
51.702, 0.6328
Howe Street
England / Essex
51.7221, 0.5846
Latchingdon
England / Essex
51.6716, 0.7258
Little Baddow
England / Essex
51.7375, 0.5762
Little Leighs
England / Essex
51.7221, 0.5846
Little Waltham
England / Essex
51.7875, 0.4786
Littley Green
England / Essex
51.7221, 0.5846
Mayland
England / Essex
51.6803, 0.7672
Maylandsea
England / Essex
51.6803, 0.7672
Nounsley
England / Essex
51.7221, 0.5846
Pleshey
England / Essex
51.8044, 0.4131
Purleigh
England / Essex
51.6872, 0.6583
Rank's Green
England / Essex
51.7221, 0.5846
Rettendon
England / Essex
51.6554, 0.5522
Rettendon Place
England / Essex
51.6554, 0.5522
Rudley Green
England / Essex
51.7221, 0.5846
Runsell Green
England / Essex
51.7221, 0.5846
South Hanningfield
England / Essex
51.6501, 0.5169
South Woodham Ferrers
England / Essex
51.6447, 0.6125
Stow Maries
England / Essex
51.6603, 0.6455
Terling
England / Essex
51.8061, 0.5684
Willows Green
England / Essex
51.7221, 0.5846
Woodham Ferrers
England / Essex
51.6667, 0.598
Young's End
England / Essex
51.7221, 0.5846

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.

CM21
Allen's Green
CM22
Bamber's Green
CM23
Berden
CM24
Stansted Mountfitchet
CM4
Blackmore
CM5
Abbess Roding
CM6
Aythorpe Roding
CM7
Bardfield Saling