
Plaid Cymru first put a candidate up for election in Wales in the 1929 general election. That one candidate polled 609 votes out of a total of 1,316,912 votes cast in Wales. By the 1979 general election, the support for Plaid Cymru had grown to 8.1% of the votes cast, resulting in Plaid Cymru winning two constituencies in Wales.
1929: 609 votes in Wales; 0.0% of the votes cast; 0 MP elected
1931: 1,136 votes in Wales; 0.1% of the votes cast; 0 MP elected
1935: 2,534 votes in Wales; 0.3% of the votes cast; 0 MP elected
1945: 14,321 votes in Wales; 1.1% of the votes cast; 0 MP elected
1950: 17,580 votes in Wales; 1.2% of the votes cast; 0 MP elected
1951: 10,920 votes in Wales; 0.7% of the votes cast; 0 MP elected
1955: 45,119 votes in Wales; 3.1% of the votes cast; 0 MP elected
1959: 77,571 votes in Wales; 5.2% of the votes cast; 0 MP elected
1964: 69,507 votes in Wales; 4.8% of the votes cast; 0 MP elected
1966: 61,071 votes in Wales; 4.3% of the votes cast; 0 MP elected
1970: 175,016 votes in Wales; 11.5% of the votes cast; 0 MP elected
1974 (Feb): 171,374 votes in Wales; 10.7% of the votes cast; 2 MP's elected
1974 (Oct): 166,321 votes in Wales; 10.8% of the votes cast; 3 MP's elected
1979: 132,544 votes in Wales; 8.1% of the votes cast; 2 MP's elected
British Elections 1832 to 1979
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