Aylesbury, Buckingham, Chipping Wycombe and Great Marlow were disenfranchised as borough constituencies.
Constituency created (1265): See Simon de Montfort's Parliament for further details.
Voters could cast a vote for one or two (or three in three-member elections 1832–1868) candidates, as they chose.
In by-elections, to fill a single seat, the first past the post system applied.
After 1832, when registration of voters was introduced, a turnout figure is given for contested elections.
The results are based on Stooks Smith from 1790 until the 1832 United Kingdom general election and Craig from 1832.