31.99% 301,658 1964 44.25% 412,665 55.75% 519,834 1960 59.02% 533,039 40.98% 533,039 For most of the first half of the 20th century, Oklahoma was a Democratic stronghold. From 1908 to 1948, the state only supported a Republican twice, in 1920 and 1928. However, Oklahoma Democrats have always been considerably more conservative