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Withernsea is a post town.

The Withernsea postcode town comprises the following postcode district(s):

The Withernsea postcode town is within the Hull postcode area (also known as the HU postcode area).

The postcodes of the other post towns within the Hull postcode area are as follows:

Villages within the Withernsea post town:

A map of the Withernsea postcode town