The IP postcode area, also known as the Ipswich postcode area,[2] is a group of 33 postcode districts in the east of England, within 15 post towns.

These cover most of Suffolk (including Ipswich, Bury St Edmunds, Aldeburgh, Brandon, Eye, Felixstowe, Halesworth, Leiston, Saxmundham, Southwold, Stowmarket and Woodbridge), southern and southwestern Norfolk (including Thetford, Diss and Harleston), and a very small part of Cambridgeshire.

The approximate coverage of the postcode districts: [2]