SG4
Postcode district906 live postcodes: 900 in North Hertfordshire, 5 in Stevenage and 1 in Welwyn Hatfield.
A postcode has no figures of its own: each layer is published for whole councils, neighbourhoods or exact points. The figures below are for the whole of North Hertfordshire, which holds 99% of SG4’s postcodes. Open the map at SG4 for neighbourhoods and points. Open the map at SG4
Deprivation by neighbourhood
English Indices of Deprivation 2025
Most deprived 10%Least
1 of North Hertfordshire’s 82 neighbourhoods are in England’s most deprived 20%.
North Hertfordshire, the council that holds 99% of SG4
Councils in SG4
- North Hertfordshire900 postcodes
- Stevenage5 postcodes
- Welwyn Hatfield1 postcodes