The borough boundary differs from Welwyn Hatfield parliamentary constituency only by the single ward of Northaw and Cuffley being within the borough, but in the parliamentary constituency of Broxborne.
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Since 1973 control of the council has alternated between the Conservative and Labour parties, with the Conservatives having controlled it since the 2002 election.
Hatfield | Welwyn Garden City | Mark Hatfield | Hatfield rail crash | Welwyn | Hatfield Peverel | Bobby Hatfield | Hatfield House | Hatfield Aerodrome | William Herbert Hatfield | William Hatfield | Welwyn North railway station | Welwyn Hatfield (UK Parliament constituency) | Welwyn Hatfield Council election, 2002 | Tinker Hatfield | Thorne and Hatfield Moors Peat Canals | Mark O. Hatfield United States Courthouse | James Hatfield | Jack Hatfield | Hatfield, South Yorkshire | Hatfield railway station | Hatfield Colliery | Hatfield College | Hatfield and the North | Elaine Hatfield | Charles Hatfield |