The ISLEWORTH Post Town in Middlesex

The ISLEWORTH Post Town is a Postal Region within the historic Postal County of Middlesex

When addressing mail to properties within this area it is important to write ISLEWORTH in capital letters before the postcode.

You no longer need to write the postal county of Middlesex when writing an address but many still do because it's fun and avoids confusion when a postal town shares the same name.