List of parliamentary constituencies in Avon
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Avon was abolished in 1996 both as a county council and a ceremonial county, but the name Avon continues to be used unofficially in subsequent boundary reviews as presented by the Boundary Commission for England to describe the area covered by the former county for the purpose of the rules which strongly deter cross-council constituencies (spanning more than one local authority within its area).
The Boundary Commission for England reviewed Avon in 2000 and devised a constituencies scheme in which no constituency spanned the four unitary authority boundaries within the abolished county. This entailed four seats to Bristol, three to South Gloucestershire and two each to Bath and North East Somerset and North Somerset and accordingly a net increase of one seat. Constituency names were aligned with the new local council names.[1][2] These changes were implemented at the 2010 general election. Bath was restored as a borough constituency (to which a different election expenses quota and returning officer applies compared to county constituencies). Thus Avon has 6 borough constituencies and 5 county constituencies.
Following the 2023 Periodic Review of Westminster constituencies, Avon underwent further boundary changes, although the total number of seats was retained at 11.