Orange County Registered Voters, 1920-2024

Senator Tom Kuchel voting in Orange County, June 8, 1954.

Here's a breakdown of voter registrations by party affiliation, beginning in 1920, compiled by the late historian Phil Brigandi. I think I'm the only one who still had a copy of this list, and it seemed too useful to waste, so I'm sharing it. 

To Phil's list -- which ended with 1980 -- I've added data for various years from 1990 to 2024. It's also worth mentioning that 2013 was the first time since the early 1960s that Orange County had more registered Democrats (547,458) than Republicans (547,369).

1920:
Republican: 9,145
Democrat: 3,202
Decline to State: 1,275
Prohibition: 658
Socialist: 147
All Other: 112

1926:
Republican: 29,243
Democrat: 9,194
All Other: 3,289

1928:
Republican: 36,036
Democrat: 11,487
Decline to State: 2,106
Prohibition: 709
Socialist: 199
All Other: 560

1930:
Republican: 37,154
Democrat: 10,692
Decline to state: 1,802
Prohibition: 475
Socialist: 181

1932:
Republican:  37,921
Democratic: 21,712
Decline to state: 1,738
Prohibition: 473
Socialist: 388
All Other: 74

1936:
Republican: 28,805
Democrat: 35,222
Decline to state: 1,499
Prohibition: 307
Socialist: 102
All Other: 19

1938:
Democrat: 39,473
Republican: 31,356
Townsend: 1,985
Decline to State: 1,629
Prohibition: 261
All Other: 137

1940:
Democrat: 42,890
Republican: 35,811
Decline to State: 1,851
Townsend: 988
Prohibition: 248
All Other: 163

1944:
Republican: 37,996
Democrat: 37,478
Decline to State: 2,056
Prohibition: 289
Townsend: 205
All Other: 72

1948:
Republican: 48,813
Democrat: 46,555
Decline to State: 3,998
Prohibition: 310
Independent-Progressive: 118
All Other: 219

1952:
Republican: 66,147
Democrat: 56,216
Decline to State: 4,293
Prohibition: 266
Independent: 191
All Other: 134

1956:
Republican: 98,808
Democrat: 86,996
Decline to State: 6,289
Independent: 605
Prohibition: 183
All Other: 56

1960:
Democrat: 154,373
Republican: 153,915
Decline to State: 12,433
Independent: 1,701
Constitution: 260
Prohibition: 156
All Other: 42

1964:
Republican: 229,943
Democrat: 215,749
Decline to State: 14,090
Independent: 2,951
Conservative: 121
All Other: 149

1968:
Republican: 306,696
Democrat: 243,469
All Other: 30,721

1972:
Republican: 394,935
Democrat: 337,279
All Other: 61,960

1976:
Republican: 362,990
Democrat: 335,330
Decline to State: 47,451
American Independent: 3,029
Peace and Freedom: 1,097
All Other: 713

1980:
Republican: 465,792
Democrat: 422,303
Non-Partisan: 92,363
Libertarian: 19,066
American Independent: 11,401
Peace and Freedom: 2,412

[ADDENDUM:]

1990:
Republican: 609,492
Democrat: 371,394
Decline to State: 93,894
American Independent: 11,214
Libertarian: 5,525
Peace and Freedom: 2,948
All Others: 1,239

2000:
Republican: 577,016
Democrat: 373,190
Decline to State: 160,892
American Independent: 22,705
Reform: 8,858
Libertarian: 8,184
New Law: 4,576
Green: 4,315
All Others: 5,796

2010:
Republican: 689,737
Democrat: 514,519
Decline to State: 325,474
American Independent: 36,349
Libertarian: 10,616
Green: 7,302
Peace and Freedom: 4,367
All Others: 6,436

2020:
Democrat: 648,537
Republican: 606,174
No Party Preference: 431,435
American Independent: 50,404
Libertarian: 17,899
Peace and Freedom: 5,961
Green: 5,078
All Other: 7,212

2024:
Democrat: 676,458
Republican: 618,872
American Independent: 68,956
No Party Preference: 412,816
Libertarian: 21,979
Peace and Freedom: 9,274
Green: 6,688
All Other: 5,435