rm20

The RM postcode area, also known as the Romford postcode area, is a group of twenty postcode districts in England, within nine post towns. These cover parts of east London, most of the London Borough of Havering and south-west Essex. Inward mail for the area is sorted, along with mail for the E and IG postcode areas, at the Romford Mail Centre.
The area served includes most of the London Borough of Havering, the eastern part of the London Borough of Barking and Dagenham and a small part of the London Borough of Redbridge. In Essex, the area covers most of the Thurrock unitary district, while RM4 covers small parts of the Epping Forest District and the Borough of Brentwood.

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