Parliamentary constituencies in Hertfordshire

The county of Hertfordshire in England is divided into eleven Parliamentary constituencies. Each of the eleven elects a Member of Parliament (MP) to represent it at the United Kingdom (UK) Parliament in Westminster. As of the 2015 general election, all of Hertfordshire's eleven MPs are Conservatives. The county currently has two urban borough constituencies (BC) – Broxbourne and Watford – while the other nine are classed as more rural county constituencies (CC).

Hertfordshire has been represented in Parliament since 1290. The number of MPs and the geographic areas they have represented have changed considerably, with some of the bigger changes occurring in 1832, 1885, 1974, 1983 and 1997. Since the last constituency elections in 2005, some boundaries have been altered slightly. The present ones are based upon recommendations made by the Boundary Commission for England, and came into legal effect with the passing of the Parliamentary Constituencies (England) Order 2007.

Hertfordshire was first represented in the English parliament in the thirteenth century, during the reign of King Edward I. Edward held a meeting of Parliament in the county in 1295. By 1307, the county's representation in parliament consisted of two representatives, known as Knights of the Shire, who represented the county as a whole. In addition, the city of St Albans and borough of Hertford elected two representatives of their own. Parliament's role evolved over the next five centuries, from a body existing primarily to advise the monarch on taxation, into a legislative body in its own right following the English Civil War. However, Hertfordshire's constituency makeup within it remained unchanged until 1852, when the constituency of St Albans was abolished. The next change came in the Redistribution of Seats Act 1885. The constituency of Hertfordshire itself was abolished, with the county represented by the constituencies of Hertford, the re-established St Albans, and the newly formed Watford and Hitchin.

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