Bacteriostatic water in Welwyn Hatfield

Local facts for Welwyn Hatfield

Welwyn Hatfield is a local authority area in East of England. Its central point falls in the AL9 postcode district.

AL9 is a mainland UK district, so orders to Welwyn Hatfield go out on next-day UK delivery. How we deliver.

Nearest universities with REF 2021 research submissions in Biological Sciences or Chemistry:

• Institute of Zoology, Biological Sciences, 26.6 km
• University College London, Biological Sciences & Chemistry, 28.1 km
• Birkbeck College, Biological Sciences, 28.5 km

Straight-line distance. Listed for local context only; no affiliation implied.

Further universities within 80 km of Welwyn Hatfield with REF 2021 submissions in these units:

• King's College London (UKPRN 10003645): Biological Sciences & Chemistry, 29.7 km south
• Queen Mary University of London (UKPRN 10007775): Biological Sciences & Chemistry, 30.1 km south-east
• Imperial College of Science, Technology and Medicine (UKPRN 10003270): Biological Sciences & Chemistry, 30.6 km south
• Institute of Cancer Research: Royal Cancer Hospital (The) (UKPRN 10003324): Biological Sciences, 31.6 km south
• University of Greenwich (UKPRN 10007146): Chemistry, 35.1 km south-east
• Royal Holloway and Bedford New College (UKPRN 10005553): Biological Sciences, 45.9 km south-west
• University of Cambridge (UKPRN 10007788): Biological Sciences & Chemistry, 52.9 km north-east
• The University of Reading (UKPRN 10007802): Biological Sciences & Chemistry, 62.8 km south-west

Nearby: Hatfield (1.2 km), Welwyn Garden City (3.4 km), Potters Bar (8.7 km), St Albans (9.2 km), Hertford (9.5 km).

Regional hub: St Albans.

Welwyn Hatfield lies east of St Albans, about 9.2 km in a straight line.

Other location pages in the AL postcode area (6 of the 227 we list for East of England):

• AL, 8.3 km
• Harpenden, AL5, 11.2 km

Postcode districts in the AL area covered by our East of England location pages: AL3, AL5, AL8, AL9, AL10.

More nearby location pages in East of England (within 50 km; straight line, nearest first):

Also in Welwyn Hatfield (3 location pages): Hatfield 1.2 km, Welwyn Garden City 3.4 km.

Nearest location page in each direction from Welwyn Hatfield: north, Welwyn Garden City (3.4 km); east, Hertford (9.5 km); south, Hatfield (1.2 km); west, AL (8.3 km).

Location pages in East of England within 10 km of Welwyn Hatfield: 6; within 25 km: 45; within 50 km: 85.

Map reference: 51.7731, -0.2095.

Sources: OS Open Names and ONS Postcode Directory (OGL), OpenStreetMap (ODbL), REF 2021, Parcelforce zone list. Updated 12 Oct 2026.