These representative diagrams show the composition of the parties in Parliament.

This is not the official seating plan of the House of Commons, which has five rows of benches on each side, with the government party to the right of the speaker and opposition parties to the left, but with room for only around two-thirds of MPs to sit at any one time.

Note: The effective Government majority was higher than the notional majority, because MPs from Sinn Féin did not take their seats due to their long-standing policy of abstentionism and vacant seats have no vote.

The following table is a list of MPs elected on 5 May 2005, ordered by constituency.

In this case, the previous MPs cannot be shown, and the previous party column shows the notional winner of the new seat, based on analysis of the 2001 general election result.