Postcodes in Welwyn Hatfield page 49 Local Authority District

This page provides postcode data for the Welwyn Hatfield UK Local Authority District.

In 2021, Welwyn Hatfield contained approximately 46,200 households with a population of about 119,900

In 2011, Welwyn Hatfield contained approximately 43,600 households with a population of about 110,474

Wards in this Local Authority District

Brookmans Park and Little Heath , Haldens , Handside , Hatfield Central , Hatfield East , Hatfield South West , Hatfield Villages , Hollybush , Howlands , Northaw and Cuffley , Panshanger , Peartree , Sherrards , Welham Green and Hatfield South , Welwyn East , Welwyn West

Parishes in this Local Authority District

Ayot St Lawrence , Ayot St Peter , Essendon , Hatfield , North Mymms , Northaw and Cuffley , Welwyn , Welwyn Hatfield, unparished area , Woolmer Green

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Key

Active postcode

Postcode no longer in use

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Postcode	Ward	Latitude	Longitude	Easting	Northing	Grid ref
SG3 6LW	Welwyn East	51.849761	-0.178209	525581	218365	TL255183
SG3 6LX	Welwyn East	51.851255	-0.17825	525574	218531	TL255185
SG3 6LZ	Welwyn East	51.84921	-0.176867	525675	218306	TL256183
SG3 6NB	Welwyn East	51.849544	-0.175793	525748	218345	TL257183
SG3 6NF	Welwyn East	51.849159	-0.176477	525702	218301	TL257183
SG3 6QT	Welwyn East	51.850485	-0.183146	525239	218437	TL252184
SG3 6SG	Welwyn East	51.850847	-0.172836	525948	218495	TL259184
SG3 6XA	Welwyn East	51.852153	-0.183413	525216	218622	TL252186
SG4 8SR	Welwyn West	51.845591	-0.249385	520690	217781	TL206177

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Contains Royal Mail data © Royal Mail copyright and database right 2026
Contains National Statistics data © Crown copyright and database rights 2026
Source: Office for National Statistics licensed under the Open Government Licence v.3.0
Contains data from Wikipedia covered by the Creative Commons license