The BBC has calculated the number of votes received by each party, for the 648 districts for which results have been released. These figures will change slightly when the last two districts are counted.

Conservative 10,681,417, 36.1%
Labour 8,501,441, 29.1%
Liberal Democrat 6,805,665, 23.0%
UK Independence 914,811, 3.1%
British National Party 562,977, 1.9%
Scottish National Party 491,386, 1.7%
Green 284,566, 1.0%
Sinn Fein 171,942 .6%
Democratic Unionist Party 168,216 .6%
Plaid Cymru 165,394 .6%
Social Democratic & Labour Party 110,970 .4%
Ulster Conservatives and Unionists – New Force 102,361, .3%
English Democrats 64,826, .2%
Alliance Party 42,762 .1%
Respect-Unity Coalition 33,251 .1%
Traditional Unionist Voice 26,300 .1%
Christian Party 18,623 .1%
Independent Community and Health Concern 16,150 .1%
Trade Unionist and Socialist Coalition 12,275 .0%
Scottish Socialist Party 3,157 .0%
others 319,891 1.1%

The Libertarian Party had two candidates, and their vote is included in “other”, above. Nic Coombe got 141 votes, or .3% in the Devizes district. Martin Cullip got 41 votes, or .1% in the Sutton and Cheam district. Thanks to Eric Garris for the link. See here for more detail.

For the first time, the Green Party won a seat in the UK Parliament. Caroline Lucas won in the constituency of Brighton Pavilion in southern England.

Here are the results:

Caroline Lucas, Green: 31.3%
Nancy Platts, Labour: 28.9%
Charlotte Vere, Conservative: 23.7%
Bernadette Millam, Liberal Democrat: 13.8%
Nigel Carter, UK Independence Party: 1.8%
Ian Fyvie Socialist Labour Party: 0.3%
Soraya Karam, Citizens for Undead Rights and Equality: 0.1%
Leo Atreides, Independent: 0.05%

The Washington legislature’s 18th district is a safely Republican district. Earlier this year, the incumbent for one of the two State House seats in that district said she would not run for re-election. Soon after, six Republicans announced that they would run for the seat (House Seat 18-1). Each Washington state legislative district elects two House members. The two contests are separate from each other on primary and general election ballots. Candidates either file for seat (1) or seat (2). The voters elect one candidate in the 18-1 contest, and one candidate in the 18-2 contest.

Republican Party officials have begun to worry that if there are six Republicans in the primary, the party may lose the seat. Washington is one of two states that uses the top-two system, in which only the two candidates who get the most votes in the primary may be on the general election ballot.

In November 2008 the vote on this seat had been 60.0% for the Republican and 40.0% for the Democrat. Filing doesn’t close until June. If two Democrats file, and there are six Republicans and two Democrats on the August 2010 primary ballot, it is highly likely that the two Democrats will place first and second, leaving no Republican on the November ballot. So a district that leans Republican could have no opportunity to elect a Republican in November, except by write-in vote. See this story. Republican Party officials will wait until they know if two Democrats will file. If two Democrats do file, the party will then undertake an informal process to limit the Republican field. Thanks to Krist Novoselic for the link.