Prior to 1885 1290–1653, 1658-1885: The
historic county of
Cambridgeshire. (Although Cambridgeshire contained the borough of
Cambridge, which elected two MPs in its own right, this was not excluded from the county constituency, and owning property within the borough could confer a vote at the county election. In the elections of 1830 and 1831, about an eighth of the votes cast for the county came from within Cambridge itself. The city of
Ely also elected its own MPs in 1295.)
1654–1658: The historic county was divided for the
First and the
Second Protectorate Parliaments, between the two-member
Isle of Ely area and the four-member constituency consisting of the rest of the county.
1918–1983 • The
administrative county of
Cambridgeshire, excluding the
Municipal Borough of Cambridge. There were minor boundary changes in 1950, when some of the constituency was transferred to the Cambridge seat, which was expanded to align with the Municipal Borough, and in 1974, to align with changes to the county boundary. ==Members of Parliament==