Postal Code Finder
Registry / United Kingdom / Postal code prefixes / CO4 /

Postal code CO4 in Blacksmith's Corner, United Kingdom

Postal code CO4 is mapped to 6 locality records in United Kingdom with administrative hierarchy and coordinates.

Verified data profile for Postal code CO4

Based on 6 records, 1 postal code values and 6 mapped localities. Coordinate coverage is 100.0%.

6
Records
1
Postal identifiers
100.0%
Geocoded
CO4
Example code
Postal code Locality Administrative path Coordinates
CO4 Blacksmith's Corner England / Essex 51.9086, 0.9209
CO4 Boxted England / Essex 51.95, 0.9167
CO4 Boxted Cross England / Essex 51.9086, 0.9209
CO4 Langham England / Essex 51.9488, 0.9433
CO4 Langham Moor England / Essex 51.9086, 0.9209
CO4 Mile End England / Essex 51.9167, 0.9

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How to validate postal code CO4

Treat CO4 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.

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Mapped localities

Blacksmith's Corner
England / Essex
51.9086, 0.9209
Boxted
England / Essex
51.95, 0.9167
Boxted Cross
England / Essex
51.9086, 0.9209
Langham
England / Essex
51.9488, 0.9433
Langham Moor
England / Essex
51.9086, 0.9209
Mile End
England / Essex
51.9167, 0.9

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.

CO15
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CO16
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CO8
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