It elected one knight of the shire (MP) by the first past the post system.

By 1918, having too small a relative population the area was combined with that of Breconshire to form Brecon and Radnor constituency.

Wilkins' death caused a by-election.

Walsh was elevated to the peerage, becoming 1st Baron Ormathwaite and causing a by-election.

The political parties had been making preparations for an election to take place and by July 1914, the following candidates had been selected;