County Council election and Borough council by-election results

Hertfordshire County Council elections were held on Thursday 1 May 2025.
Welwyn Hatfield consists of eight county divisions with 3 Liberal Democrat seats, 2 Conservative seats, 2 Reform seats and 1 Labour seat.
The overall turnout in the county council election was 30.6 per cent.
The full list of county council election results for the Welwyn Hatfield area can be found on the Welwyn Hatfield Borough Council website.
By-elections were also held for two casual vacancies on Welwyn Hatfield Borough Council. Fiona Thomson (Conservative) was elected in Brookmans Park and Little Heath ward and Fauzia Haider (Liberal Democrats) was elected in Peartree ward.