Historical Voter Registration Data

Pennsylvania Voter Registration by Party 1925-1997
Year Democrats Republicans Others Indep & NonPartisan Constitutional Libertarian Patriot Reform Total
1925 697,180 2,238,084 53,809 255,892       3,244,965
1926 657,329 2,279,031 42,074 245,692       3,224,126
1927 689,850 2,556,303 37,238 204,620       3,488,011
1928 867,391 2,861,919 34,378 208,188       3,971,876
1929 694,174 2,683,909 25,467 185,387       3,588,937
1930 675,584 2,659,850 22,586 164,490       3,522,510
1931 724,337 2,963,738 26,435 145,475       3,859,985
1932 833,977 2,911,068 29,410 138,216       3,912,671
1933 1,087,890 2,742,327 26,120 135,941       3,992,278
1934 1,401,005 2,624,386 29,265 137,244       4,191,900
1935 1,691,173 2,631,491 31,197 136,718       4,490,579
1936 2,065,697 2,665,902 31,089 153,658       4,916,346
1937 1,897,438 2,075,557 20,100 44,200       4,037,295
1938 2,209,276 2,372,528 21,684 44,019       4,647,507
1939 2,089,645 2,549,208 14,795 47,378       4,701,026
1940 2,161,307 2,782,890 15,637 54,876       5,014,710
1941 2,022,076 2,644,339 16,154 47,028       4,729,597
1942 1,948,372 2,603,104 14,956 45,856       4,612,288
1943 1,819,472 2,510,498 7,184 46,240       4,383,394
1944 1,854,111 2,645,263 14,053 46,004       4,559,431
1945 1,775,497 2,573,039 10,934 45,508       4,404,978
1946 1,854,080 2,737,279 14,348 47,387       4,653,094
1947 1,770,998 2,724,231 9,515 46,197       4,550,941
1948 1,810,517 2,864,029 11,078 51,349       4,736,973
1949 1,955,288 2,901,762 13,825 47,820       4,918,695
1950 1,930,916 2,772,778 13,500 44,466       4,761,660
1951 1,945,642 2,871,566 10,799 46,093       4,874,100
1952 2,136,511 3,130,078 16,957 58,424       5,341,970
1953 2,080,678 3,023,825 17,341 54,352       5,176,196
1954 2,088,857 2,995,971 16,742 53,164       5,154,734
1955 2,202,561 2,774,040 10,228 51,271       5,038,100
1956 2,450,396 2,897,307 12,861 61,586       5,422,150
1957 2,460,925 2,804,976 8,060 62,755       5,336,716
1958 2,554,007 2,771,613 7,882 63,905       5,397,407
1959 2,566,629 2,636,525 5,416 59,872       5,268,442
1960 2,805,202 2,802,237 4,821 75,577       5,687,837
1961 2,841,144 2,685,505 4,100 72,089       5,602,838
1962 2,896,099 2,700,164 4,076 73,158       5,673,497
1963 2,739,416 2,656,403 3,621 67,278       5,466,718
1964 2,884,396 2,759,565 4,224 80,174       5,728,359
1965 2,795,257 2,685,258 4,040 76,035       5,560,590
1966 2,759,524 2,678,934 4,158 76,385       5,519,001
1967 2,618,723 2,628,225 4,322 69,452       *5323114
1968 2,715,507 2,775,456 103,793 4,608       5,599,364
1969 2,633,190 2,712,626 100,645 5,942       5,482,403
1970 2,627,130 2,680,411 104,941 7,069       5,419,551
1971 2,752,607 2,547,090 123,014 7,319       5,430,030
1972 2,993,092 2,697,694 173,427 7,689       5,871,902
1973 2,947,632 2,605,924 165,756 7,250       5,726,562
Pennsylvania Voter Registration by Party
Year Democrats Republicans Others Indep & NonPartisan Constitutional Libertarian Patriot Reform Total
1974 2,884,523 2,479,802 157,958 6,764       5,529,047
1975 2,838,046 2,281,188 129,434 7,336       5,256,004
1976 3,152,450 2,387,197 202,699 7,314       5,749,660
1977 3,134,943 2,324,884 212,703         5,672,530
1978 3,224,953 2,321,807 249,750         5,796,510
1979 2,997,490 2,209,798 222,372         5,429,660
1980 3,072,700 2,374,303 307,284         5,754,287
1981 3,023,334 2,364,713 301,137         5,689,184
1982 3,035,523 2,357,448 309,586 Consumers       5,702,557
1983 3,175,960 2,269,548 258,141 3,514       5,707,163
1984 3,380,675 2,487,552 321,589 3,886       6,193,702
1985 3,271,365 2,453,667 298,430 5,928       6,029,390
1986 3,128,265 2,422,385 291,632 4,693       5,846,975
1987 2,861,251 2,297,088 229,857         5,388,196
1988 3,069,234 2,518,282 288,427         5,875,943
1989 3,015,997 2,493,015 275,312         5,784,324
1990 2,907,156 2,476,222 275,811         5,659,189
1991 2,693,644 2,363,810 242,911         5,300,365
1992 3,043,757 2,567,643 381,602         5,993,002
1993 3,007,927 2,527,456 379,266     2,448 1,774 5,918,871
1994 2,955,594 2,534,087 381,315     4,408 3,689 5,879,093
1995 3,070,170 2,660,447 423,435   1,007 7,489 4,168 6,166,716
1996 3,336,933 2,910,614 539,080   3,121 13,770 2,094 6,805,612
1997 3,441,798 2,998,083 590,922   5,044 18,740 2,482 7,057,069 

Source:        Dept. of State, Bureau of Elections

Prepared by:   The Pennsylvania State Data Center, Penn State Harrisburg