Solano County, California
Precinct data
Results by precinct
203 precincts · 189,711 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| Precinct -2113021130 | 2,162 | 1,104 | 103 | 3,369 | 64.2% | 32.8% | D+31.4 |
|---|---|---|---|---|---|---|---|
| Precinct -3505735057 | 2,071 | 1,017 | 86 | 3,174 | 65.2% | 32.0% | D+33.2 |
| Precinct -2102021020 | 2,033 | 919 | 92 | 3,044 | 66.8% | 30.2% | D+36.6 |
| Precinct -4627046270 | 1,531 | 1,328 | 65 | 2,924 | 52.4% | 45.4% | D+6.9 |
| Precinct -2104521045 | 1,981 | 741 | 81 | 2,803 | 70.7% | 26.4% | D+44.2 |
| Precinct -5613056130 | 1,500 | 1,213 | 90 | 2,803 | 53.5% | 43.3% | D+10.2 |
| Precinct -2109021090 | 1,845 | 760 | 108 | 2,713 | 68.0% | 28.0% | D+40.0 |
| Precinct -5402554025 | 1,783 | 812 | 50 | 2,645 | 67.4% | 30.7% | D+36.7 |
| Precinct -1722017220 | 1,881 | 634 | 95 | 2,610 | 72.1% | 24.3% | D+47.8 |
| Precinct -5619056190 | 1,186 | 1,342 | 65 | 2,593 | 45.7% | 51.8% | R+6.0 |
| Precinct -1728817288 | 1,715 | 702 | 43 | 2,460 | 69.7% | 28.5% | D+41.2 |
| Precinct -5620556205 | 1,174 | 1,186 | 61 | 2,421 | 48.5% | 49.0% | R+0.5 |
| Precinct -5602056020 | 1,162 | 1,205 | 46 | 2,413 | 48.2% | 49.9% | R+1.8 |
| Precinct -4632046320 | 1,152 | 1,198 | 60 | 2,410 | 47.8% | 49.7% | R+1.9 |
| Precinct -5612556125 | 1,200 | 1,111 | 52 | 2,363 | 50.8% | 47.0% | D+3.8 |
| Precinct -5300553005 | 1,445 | 854 | 48 | 2,347 | 61.6% | 36.4% | D+25.2 |
| Precinct -3503535035 | 1,517 | 724 | 64 | 2,305 | 65.8% | 31.4% | D+34.4 |
| Precinct -1730017300 | 1,605 | 597 | 64 | 2,266 | 70.8% | 26.3% | D+44.5 |
| Precinct -5303553035 | 1,292 | 753 | 78 | 2,123 | 60.9% | 35.5% | D+25.4 |
| Precinct -4232542325 | 945 | 1,094 | 69 | 2,108 | 44.8% | 51.9% | R+7.1 |
| Precinct -4613046130 | 969 | 1,054 | 59 | 2,082 | 46.5% | 50.6% | R+4.1 |
| Precinct -3307533075 | 1,412 | 604 | 48 | 2,064 | 68.4% | 29.3% | D+39.1 |
| Precinct -1714017140 | 1,549 | 416 | 74 | 2,039 | 76.0% | 20.4% | D+55.6 |
| Precinct -5402054020 | 1,367 | 623 | 49 | 2,039 | 67.0% | 30.6% | D+36.5 |
| Precinct -2301723017 | 1,147 | 796 | 89 | 2,032 | 56.4% | 39.2% | D+17.3 |
| Precinct -4615046150 | 932 | 1,054 | 42 | 2,028 | 46.0% | 52.0% | R+6.0 |
| Precinct -1707017070 | 1,542 | 410 | 36 | 1,988 | 77.6% | 20.6% | D+56.9 |
| Precinct -1710017100 | 1,459 | 437 | 57 | 1,953 | 74.7% | 22.4% | D+52.3 |
| Precinct -5400554005 | 815 | 1,084 | 53 | 1,952 | 41.8% | 55.5% | R+13.8 |
| Precinct -3313533135 | 1,243 | 624 | 73 | 1,940 | 64.1% | 32.2% | D+31.9 |
| Precinct -2300523005 | 1,141 | 702 | 75 | 1,918 | 59.5% | 36.6% | D+22.9 |
| Precinct -1705017050 | 1,393 | 442 | 43 | 1,878 | 74.2% | 23.5% | D+50.6 |
| Precinct -5300753007 | 1,168 | 601 | 64 | 1,833 | 63.7% | 32.8% | D+30.9 |
| Precinct -2304723047 | 1,151 | 605 | 48 | 1,804 | 63.8% | 33.5% | D+30.3 |
| Precinct -5308053080 | 1,116 | 611 | 67 | 1,794 | 62.2% | 34.1% | D+28.1 |
| Precinct -3300533005 | 1,047 | 662 | 67 | 1,776 | 59.0% | 37.3% | D+21.7 |
| Precinct -2711527115 | 1,270 | 457 | 40 | 1,767 | 71.9% | 25.9% | D+46.0 |
| Precinct -1738017380 | 1,170 | 530 | 37 | 1,737 | 67.4% | 30.5% | D+36.8 |
| Precinct -2705027050 | 1,208 | 457 | 71 | 1,736 | 69.6% | 26.3% | D+43.3 |
| Precinct -5502555025 | 1,076 | 607 | 44 | 1,727 | 62.3% | 35.1% | D+27.2 |
| Precinct -2711027110 | 1,262 | 412 | 52 | 1,726 | 73.1% | 23.9% | D+49.2 |
| Precinct -5305753057 | 1,041 | 630 | 55 | 1,726 | 60.3% | 36.5% | D+23.8 |
| Precinct -1718517185 | 1,281 | 366 | 59 | 1,706 | 75.1% | 21.5% | D+53.6 |
| Precinct -4602546025 | 755 | 890 | 40 | 1,685 | 44.8% | 52.8% | R+8.0 |
| Precinct -4640046400 | 936 | 709 | 39 | 1,684 | 55.6% | 42.1% | D+13.5 |
| Precinct -1704017040 | 1,113 | 480 | 31 | 1,624 | 68.5% | 29.6% | D+39.0 |
| Precinct -2109521095 | 1,125 | 455 | 39 | 1,619 | 69.5% | 28.1% | D+41.4 |
| Precinct -5310053100 | 993 | 566 | 46 | 1,605 | 61.9% | 35.3% | D+26.6 |
| Precinct -5314053140 | 920 | 641 | 42 | 1,603 | 57.4% | 40.0% | D+17.4 |
| Precinct -4201042010 | 700 | 832 | 45 | 1,577 | 44.4% | 52.8% | R+8.4 |
| Precinct -2713027130 | 1,016 | 484 | 50 | 1,550 | 65.5% | 31.2% | D+34.3 |
| Precinct -3304533045 | 894 | 607 | 43 | 1,544 | 57.9% | 39.3% | D+18.6 |
| Precinct -4638046380 | 808 | 643 | 52 | 1,503 | 53.8% | 42.8% | D+11.0 |
| Precinct -2302023020 | 908 | 509 | 54 | 1,471 | 61.7% | 34.6% | D+27.1 |
| Precinct -2309023090 | 904 | 509 | 44 | 1,457 | 62.0% | 34.9% | D+27.1 |
| Precinct -4619346193 | 738 | 678 | 40 | 1,456 | 50.7% | 46.6% | D+4.1 |
| Precinct -3303033030 | 836 | 568 | 50 | 1,454 | 57.5% | 39.1% | D+18.4 |
| Precinct -5601556015 | 806 | 620 | 25 | 1,451 | 55.5% | 42.7% | D+12.8 |
| Precinct -3306033060 | 868 | 514 | 35 | 1,417 | 61.3% | 36.3% | D+25.0 |
| Precinct -2113521135 | 902 | 463 | 37 | 1,402 | 64.3% | 33.0% | D+31.3 |
| Precinct -3505535055 | 871 | 474 | 43 | 1,388 | 62.8% | 34.1% | D+28.6 |
| Precinct -3307033070 | 868 | 459 | 56 | 1,383 | 62.8% | 33.2% | D+29.6 |
| Precinct -4605546055 | 665 | 670 | 44 | 1,379 | 48.2% | 48.6% | R+0.4 |
| Precinct -4206542065 | 628 | 696 | 43 | 1,367 | 45.9% | 50.9% | R+5.0 |
| Precinct -3319533195 | 886 | 438 | 39 | 1,363 | 65.0% | 32.1% | D+32.9 |
| Precinct -4974049740 | 513 | 816 | 30 | 1,359 | 37.7% | 60.0% | R+22.3 |
| Precinct -4207042070 | 685 | 636 | 31 | 1,352 | 50.7% | 47.0% | D+3.6 |
| Precinct -4618046180 | 681 | 640 | 31 | 1,352 | 50.4% | 47.3% | D+3.0 |
| Precinct -4616546165 | 539 | 775 | 32 | 1,346 | 40.0% | 57.6% | R+17.5 |
| Precinct -1728017280 | 889 | 388 | 27 | 1,304 | 68.2% | 29.8% | D+38.4 |
| Precinct -5610756107 | 668 | 589 | 38 | 1,295 | 51.6% | 45.5% | D+6.1 |
| Precinct -2708027080 | 933 | 287 | 40 | 1,260 | 74.0% | 22.8% | D+51.3 |
| Precinct -1700517005 | 855 | 369 | 35 | 1,259 | 67.9% | 29.3% | D+38.6 |
| Precinct -4608046080 | 614 | 590 | 37 | 1,241 | 49.5% | 47.5% | D+1.9 |
| Precinct -1734017340 | 835 | 373 | 30 | 1,238 | 67.4% | 30.1% | D+37.3 |
| Precinct -1711017110 | 882 | 287 | 43 | 1,212 | 72.8% | 23.7% | D+49.1 |
| Precinct -1731017310 | 936 | 226 | 48 | 1,210 | 77.4% | 18.7% | D+58.7 |
| Precinct -5620056200 | 697 | 441 | 27 | 1,165 | 59.8% | 37.9% | D+22.0 |
| Precinct -1727017270 | 759 | 329 | 35 | 1,123 | 67.6% | 29.3% | D+38.3 |
| Precinct -3500535005 | 671 | 407 | 30 | 1,108 | 60.6% | 36.7% | D+23.8 |
| Precinct -1711517115 | 776 | 280 | 45 | 1,101 | 70.5% | 25.4% | D+45.0 |
| Precinct -4601046010 | 510 | 549 | 38 | 1,097 | 46.5% | 50.0% | R+3.6 |
| Precinct -5311553115 | 692 | 338 | 51 | 1,081 | 64.0% | 31.3% | D+32.7 |
| Precinct -2717527175 | 703 | 275 | 33 | 1,011 | 69.5% | 27.2% | D+42.3 |
| Precinct -1735017350 | 684 | 272 | 19 | 975 | 70.2% | 27.9% | D+42.3 |
| Precinct -1739017390 | 654 | 228 | 32 | 914 | 71.6% | 24.9% | D+46.6 |
| Precinct -3319033190 | 558 | 310 | 37 | 905 | 61.7% | 34.3% | D+27.4 |
| Precinct -4612046120 | 501 | 363 | 35 | 899 | 55.7% | 40.4% | D+15.4 |
| Precinct -2106021060 | 609 | 248 | 30 | 887 | 68.7% | 28.0% | D+40.7 |
| Precinct -4603746037 | 434 | 429 | 22 | 885 | 49.0% | 48.5% | D+0.6 |
| Precinct -3321033210 | 585 | 236 | 24 | 845 | 69.2% | 27.9% | D+41.3 |
| Precinct -2716527165 | 559 | 241 | 27 | 827 | 67.6% | 29.1% | D+38.5 |
| Precinct -4621246212 | 427 | 360 | 22 | 809 | 52.8% | 44.5% | D+8.3 |
| Precinct -4204542045 | 362 | 413 | 27 | 802 | 45.1% | 51.5% | R+6.4 |
| Precinct -2718527185 | 495 | 280 | 22 | 797 | 62.1% | 35.1% | D+27.0 |
| Precinct -4603546035 | 369 | 398 | 29 | 796 | 46.4% | 50.0% | R+3.6 |
| Precinct -3301533015 | 464 | 313 | 16 | 793 | 58.5% | 39.5% | D+19.0 |
| Precinct -2719027190 | 555 | 204 | 21 | 780 | 71.2% | 26.2% | D+45.0 |
| Precinct -3325033250 | 464 | 278 | 21 | 763 | 60.8% | 36.4% | D+24.4 |
| Precinct -3502035020 | 500 | 218 | 28 | 746 | 67.0% | 29.2% | D+37.8 |
| Precinct -3304333043 | 424 | 290 | 22 | 736 | 57.6% | 39.4% | D+18.2 |
| Precinct -2305023050 | 465 | 219 | 34 | 718 | 64.8% | 30.5% | D+34.3 |
| Precinct -3324533245 | 449 | 246 | 22 | 717 | 62.6% | 34.3% | D+28.3 |
| Precinct -2702027020 | 544 | 141 | 31 | 716 | 76.0% | 19.7% | D+56.3 |
| Precinct -5616056160 | 348 | 339 | 15 | 702 | 49.6% | 48.3% | D+1.3 |
| Precinct -3322033220 | 454 | 198 | 25 | 677 | 67.1% | 29.2% | D+37.8 |
| Precinct -2710027100 | 473 | 168 | 20 | 661 | 71.6% | 25.4% | D+46.1 |
| Precinct -2941029410 | 279 | 332 | 25 | 636 | 43.9% | 52.2% | R+8.3 |
| Precinct -4235542355 | 259 | 354 | 12 | 625 | 41.4% | 56.6% | R+15.2 |
| Precinct -4200542005 | 292 | 307 | 17 | 616 | 47.4% | 49.8% | R+2.4 |
| Precinct -3304233042 | 387 | 191 | 19 | 597 | 64.8% | 32.0% | D+32.8 |
| Precinct -2941229412 | 302 | 278 | 15 | 595 | 50.8% | 46.7% | D+4.0 |
| Precinct -4912049120 | 233 | 351 | 8 | 592 | 39.4% | 59.3% | R+19.9 |
| Precinct -3329033290 | 368 | 201 | 17 | 586 | 62.8% | 34.3% | D+28.5 |
| Precinct -3323533235 | 394 | 173 | 16 | 583 | 67.6% | 29.7% | D+37.9 |
| Precinct -3940539405 | 213 | 330 | 17 | 560 | 38.0% | 58.9% | R+20.9 |
| Precinct -2111721117 | 374 | 150 | 16 | 540 | 69.3% | 27.8% | D+41.5 |
| Precinct -3504235042 | 332 | 145 | 13 | 490 | 67.8% | 29.6% | D+38.2 |
| Precinct -3305733057 | 304 | 174 | 10 | 488 | 62.3% | 35.7% | D+26.6 |
| Precinct -1718017180 | 368 | 103 | 13 | 484 | 76.0% | 21.3% | D+54.8 |
| Precinct -1739517395 | 312 | 143 | 20 | 475 | 65.7% | 30.1% | D+35.6 |
| Precinct -2707027070 | 348 | 112 | 15 | 475 | 73.3% | 23.6% | D+49.7 |
| Precinct -4921049210 | 144 | 307 | 8 | 459 | 31.4% | 66.9% | R+35.5 |
| Precinct -4990049900 | 210 | 219 | 11 | 440 | 47.7% | 49.8% | R+2.0 |
| Precinct -2707527075 | 291 | 121 | 16 | 428 | 68.0% | 28.3% | D+39.7 |
| Precinct -5615056150 | 183 | 231 | 13 | 427 | 42.9% | 54.1% | R+11.2 |
| Precinct -1727317273 | 297 | 84 | 16 | 397 | 74.8% | 21.2% | D+53.7 |
| Precinct -3313333133 | 224 | 155 | 13 | 392 | 57.1% | 39.5% | D+17.6 |
| Precinct -4617246172 | 203 | 170 | 14 | 387 | 52.5% | 43.9% | D+8.5 |
| Precinct -4211042110 | 179 | 174 | 11 | 364 | 49.2% | 47.8% | D+1.4 |
| Precinct -2982029820 | 238 | 93 | 15 | 346 | 68.8% | 26.9% | D+41.9 |
| Precinct -3308033080 | 172 | 153 | 13 | 338 | 50.9% | 45.3% | D+5.6 |
| Precinct -2918729187 | 223 | 84 | 12 | 319 | 69.9% | 26.3% | D+43.6 |
| Precinct -3508035080 | 196 | 105 | 9 | 310 | 63.2% | 33.9% | D+29.4 |
| Precinct -4235042350 | 139 | 142 | 4 | 285 | 48.8% | 49.8% | R+1.1 |
| Precinct -3925039250 | 113 | 161 | 5 | 279 | 40.5% | 57.7% | R+17.2 |
| Precinct -1740517405 | 171 | 85 | 5 | 261 | 65.5% | 32.6% | D+33.0 |
| Precinct -4234242342 | 125 | 122 | 12 | 259 | 48.3% | 47.1% | D+1.2 |
| Precinct -4230042300 | 116 | 129 | 8 | 253 | 45.8% | 51.0% | R+5.1 |
| Precinct -5314653146 | 131 | 102 | 7 | 240 | 54.6% | 42.5% | D+12.1 |
| Precinct -3306233062 | 128 | 97 | 7 | 232 | 55.2% | 41.8% | D+13.4 |
| Precinct -2984029840 | 153 | 70 | 4 | 227 | 67.4% | 30.8% | D+36.6 |
| Precinct -3322533225 | 155 | 60 | 11 | 226 | 68.6% | 26.5% | D+42.0 |
| Precinct -4970049700 | 99 | 115 | 4 | 218 | 45.4% | 52.8% | R+7.3 |
| Precinct -4931149311 | 64 | 140 | 5 | 209 | 30.6% | 67.0% | R+36.4 |
| Precinct -5974059740 | 73 | 122 | 4 | 199 | 36.7% | 61.3% | R+24.6 |
| Precinct -2707327073 | 152 | 40 | 6 | 198 | 76.8% | 20.2% | D+56.6 |
| Precinct -4928049280 | 65 | 126 | 4 | 195 | 33.3% | 64.6% | R+31.3 |
| Precinct -3311933119 | 123 | 55 | 9 | 187 | 65.8% | 29.4% | D+36.4 |
| Precinct -4973049730 | 54 | 122 | 6 | 182 | 29.7% | 67.0% | R+37.4 |
| Precinct -4974949749 | 58 | 121 | 1 | 180 | 32.2% | 67.2% | R+35.0 |
| Precinct -5624056240 | 66 | 107 | 2 | 175 | 37.7% | 61.1% | R+23.4 |
| Precinct -5970059700 | 63 | 105 | 6 | 174 | 36.2% | 60.3% | R+24.1 |
| Precinct -4971249712 | 65 | 100 | 5 | 170 | 38.2% | 58.8% | R+20.6 |
| Precinct -4973349733 | 54 | 110 | 5 | 169 | 32.0% | 65.1% | R+33.1 |
| Precinct -4639946399 | 95 | 62 | 3 | 160 | 59.4% | 38.8% | D+20.6 |
| Precinct -4969549695 | 48 | 104 | 2 | 154 | 31.2% | 67.5% | R+36.4 |
| Precinct -5601256012 | 83 | 64 | 2 | 149 | 55.7% | 43.0% | D+12.8 |
| Precinct -5934059340 | 61 | 85 | 3 | 149 | 40.9% | 57.0% | R+16.1 |
| Precinct -4611846118 | 58 | 60 | 9 | 127 | 45.7% | 47.2% | R+1.6 |
| Precinct -4606046060 | 52 | 68 | 5 | 125 | 41.6% | 54.4% | R+12.8 |
| Precinct -3940039400 | 56 | 62 | 4 | 122 | 45.9% | 50.8% | R+4.9 |
| Precinct -4976049760 | 22 | 90 | 3 | 115 | 19.1% | 78.3% | R+59.1 |
| Precinct -5930059300 | 31 | 62 | 1 | 94 | 33.0% | 66.0% | R+33.0 |
| Precinct -2951029510 | 50 | 40 | 2 | 92 | 54.3% | 43.5% | D+10.9 |
| Precinct -4612646126 | 34 | 47 | 2 | 83 | 41.0% | 56.6% | R+15.7 |
| Precinct -4973549735 | 28 | 52 | 0 | 80 | 35.0% | 65.0% | R+30.0 |
| Precinct -4926049260 | 38 | 37 | 1 | 76 | 50.0% | 48.7% | D+1.3 |
| Precinct -5955059550 | 36 | 34 | 2 | 72 | 50.0% | 47.2% | D+2.8 |
| Precinct -4970649706 | 16 | 54 | 0 | 70 | 22.9% | 77.1% | R+54.3 |
| Precinct -2983029830 | 55 | 11 | 1 | 67 | 82.1% | 16.4% | D+65.7 |
| Precinct -4627846278 | 37 | 28 | 2 | 67 | 55.2% | 41.8% | D+13.4 |
| Precinct -5950059500 | 21 | 36 | 1 | 58 | 36.2% | 62.1% | R+25.9 |
| Precinct -4979049790 | 15 | 33 | 0 | 48 | 31.3% | 68.8% | R+37.5 |
| Precinct -4922049220 | 16 | 28 | 3 | 47 | 34.0% | 59.6% | R+25.5 |
| Precinct -3941539415 | 13 | 27 | 6 | 46 | 28.3% | 58.7% | R+30.4 |
| Precinct -5954559545 | 28 | 18 | 0 | 46 | 60.9% | 39.1% | D+21.7 |
| Precinct -5606556065 | 33 | 9 | 1 | 43 | 76.7% | 20.9% | D+55.8 |
| Precinct -4602046020 | 21 | 21 | 0 | 42 | 50.0% | 50.0% | Even |
| Precinct -4990549905 | 16 | 25 | 0 | 41 | 39.0% | 61.0% | R+22.0 |
| Precinct -5935759357 | 15 | 23 | 3 | 41 | 36.6% | 56.1% | R+19.5 |
| Precinct -4628446284 | 26 | 11 | 1 | 38 | 68.4% | 28.9% | D+39.5 |
| Precinct -3947039470 | 12 | 24 | 0 | 36 | 33.3% | 66.7% | R+33.3 |
| Precinct -1940019400 | 14 | 16 | 2 | 32 | 43.8% | 50.0% | R+6.3 |
| Precinct -3316733167 | 26 | 6 | 0 | 32 | 81.3% | 18.8% | D+62.5 |
| Precinct -5952059520 | 10 | 17 | 2 | 29 | 34.5% | 58.6% | R+24.1 |
| Precinct -4924049240 | 12 | 16 | 0 | 28 | 42.9% | 57.1% | R+14.3 |
| Precinct -5973059730 | 3 | 25 | 0 | 28 | 10.7% | 89.3% | R+78.6 |
| Precinct -4920049200 | 15 | 5 | 1 | 21 | 71.4% | 23.8% | D+47.6 |
| Precinct -4971149711 | 4 | 16 | 0 | 20 | 20.0% | 80.0% | R+60.0 |
| Precinct -2956529565 | 8 | 11 | 0 | 19 | 42.1% | 57.9% | R+15.8 |
| Precinct -4217042170 | 8 | 10 | 0 | 18 | 44.4% | 55.6% | R+11.1 |
| Precinct -2910029100 | 6 | 11 | 0 | 17 | 35.3% | 64.7% | R+29.4 |
| Precinct -2951529515 | 8 | 8 | 0 | 16 | 50.0% | 50.0% | Even |
| Precinct -5317553175 | 0 | 15 | 0 | 15 | 0.0% | 100.0% | R+100.0 |
| Precinct -5941059410 | 6 | 9 | 0 | 15 | 40.0% | 60.0% | R+20.0 |
| Precinct -2916029160 | 5 | 9 | 0 | 14 | 35.7% | 64.3% | R+28.6 |
| Precinct -3945139451 | 8 | 5 | 1 | 14 | 57.1% | 35.7% | D+21.4 |
| Precinct -5961559615 | 1 | 11 | 0 | 12 | 8.3% | 91.7% | R+83.3 |
| Precinct -4604246042 | 8 | 3 | 0 | 11 | 72.7% | 27.3% | D+45.5 |
| Precinct -2956029560 | 5 | 5 | 0 | 10 | 50.0% | 50.0% | Even |
| Precinct -5601056010 | 3 | 7 | 0 | 10 | 30.0% | 70.0% | R+40.0 |
| Precinct -5915059150 | 1 | 9 | 0 | 10 | 10.0% | 90.0% | R+80.0 |
presidential history
Presidential margin, 1876–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1876 | −5.3% |
| 1880 | −0.1% |
| 1884 | −9.1% |
| 1888 | −1.6% |
| 1892 | −4.7% |
| 1896 | −8.2% |
| 1900 | −15.1% |
| 1904 | −31.3% |
| 1908 | −19.0% |
| 1912 | +45.7% |
| 1916 | +22.0% |
| 1920 | −37.8% |
| 1924 | −38.4% |
| 1928 | −5.8% |
| 1932 | +36.9% |
| 1936 | +57.2% |
| 1940 | +42.1% |
| 1944 | +40.2% |
| 1948 | +29.8% |
| 1952 | +16.1% |
| 1956 | +16.4% |
| 1960 | +17.9% |
| 1964 | +39.1% |
| 1968 | +18.8% |
| 1972 | −11.3% |
| 1976 | +12.2% |
| 1980 | −12.4% |
| 1984 | −10.2% |
| 1988 | +3.8% |
| 1992 | +19.3% |
| 1996 | +20.4% |
| 2000 | +17.8% |
| 2004 | +15.3% |
| 2008 | +28.5% |
| 2012 | +29.2% |
| 2016 | +30.0% |
| 2020 | +30.1% |
| 2024 | +23.0% |
DemocraticRepublican
Congressional elections · 2 Senate races
U.S. Senate
voter registration
Registered voters
By party of registration, over time
Party registration · 2024D+25.0
Presidential vote · 2024D+23.0
Registration and the presidential vote track closely here — within 2.0 points.
266,043 registered voters · 2024 · up from 260,687 in 2022
domestic migration
Who moves in and out
Net migration over time, and who arrivals are — where they came from and what those places vote
−1,264 net domestic migration · 2025
20112025
Net −270 over 2011–2025 · gain loss
Arrivals reported $73,996 in average income, against $92,113 for residents who stayed — 20% lower. (IRS SOI, 2022–23)
The places arrivals came from lean D+32.5 on average — 9.5 points more Democratic-leaning than Solano County, CA itself (D+23.0).
Where arrivals came from lean of each source
- Contra Costa County, CA2,151D+37.9
- Alameda County, CA995D+53.6
- Napa County, CA796D+34.9
- Sacramento County, CA739D+19.7
- Yolo County, CA422D+36.2
- San Francisco County, CA381D+64.8
Where departures went households, 2022–23
- Contra Costa County, CA1,294
- Sacramento County, CA1,057
- Alameda County, CA690
- Napa County, CA567
- Yolo County, CA461
- San Francisco County, CA349
Migration is one input to a place’s political change, not its cause — a shift can also come from residents changing their minds, generational turnover, or turnout. These figures describe the places people moved between; they do not measure how any mover voted.
| Year | Net domestic migration |
|---|---|
| 2011 | −673 |
| 2012 | +127 |
| 2013 | +916 |
| 2014 | +2,260 |
| 2015 | +1,405 |
| 2016 | +2,691 |
| 2017 | +2,300 |
| 2018 | +617 |
| 2019 | +277 |
| 2021 | −3,337 |
| 2022 | −3,944 |
| 2023 | −1,973 |
| 2024 | +328 |
| 2025 | −1,264 |
Home to Travis Air Force Base, Solano County blends a sizable active-duty and veteran population with expanding exurban communities, yet still returned a Democratic presidential margin of 23 points in 2024.
Across the recorded series it reached a Democratic high of 57.2 points in 1936 and a Republican high of 38.4 points in 1924. Between 2020 and 2024 the county moved 7.1 points toward the Republican candidate; the 2024 margin was 23.0 points.
A population of 451,918, a 33% non-Hispanic-white share, and a median household income of $100,401 describe the county. The county's voting pattern over the last decade is most similar to that of Sacramento County and Contra Costa County.
Political twins — counties
The counties whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Sacramento County
California
96.8twin score
% Asian2016–2024 trajectory
Contra Costa County
California
96.1twin score
% Asian2016–2024 trajectory≠ college share
Yolo County
California
95.5twin score
% Asian2016–2024 trajectory≠ college share
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
Browse places by community — income, education, race & ethnicity, language — all community cuts →
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
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All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Solano County, California. Akashic. https://akashic.app/county/06095/. Accessed May 20, 2026. License: CC BY 4.0.
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Cities & towns in Solano County
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Frequently asked questions
How did Solano County, California vote in 2024?
In 2024, Solano County, California voted Democratic by 23.0 points (D+23.0), carried by the Democratic candidate. Out of 189,834 votes cast, 113,997 went Democratic and 70,345 went Republican.
When did Solano County, California last vote Republican?
The most recent presidential election in which Solano County, California voted Republican was 1984.
How many people live in Solano County, California?
Solano County, California has a population of 451,918 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Solano County, California?
Median household income in Solano County, California is $100,401 — above the national median of $80,734. The California state median is $99,122.
What is the political history of Solano County, California?
Akashic tracks 38 presidential elections in Solano County, California from 1876 to 2024. Of those, 22 went Democratic and 15 went Republican.