Humboldt County, California
Precinct data
Results by precinct
89 precincts · 63,890 votes
Precinct boundaries and identifiers are cycle-specific. This table does not join rows across years without a validated crosswalk.
| Precinct -5MK-15MK-1 | 2,584 | 1,353 | 155 | 4,092 | 63.1% | 33.1% | D+30.1 |
|---|---|---|---|---|---|---|---|
| Precinct -5MK-55MK-5 | 2,346 | 1,195 | 151 | 3,692 | 63.5% | 32.4% | D+31.2 |
| Precinct -1CS-11CS-1 | 1,589 | 1,155 | 96 | 2,840 | 56.0% | 40.7% | D+15.3 |
| Precinct -2F-R12F-R1 | 1,120 | 1,512 | 80 | 2,712 | 41.3% | 55.8% | R+14.5 |
| Precinct -2F--22F--2 | 1,270 | 1,265 | 104 | 2,639 | 48.1% | 47.9% | D+0.2 |
| Precinct -4ES-44ES-4 | 1,339 | 791 | 84 | 2,214 | 60.5% | 35.7% | D+24.8 |
| Precinct -3A-133A-13 | 1,782 | 252 | 159 | 2,193 | 81.3% | 11.5% | D+69.8 |
| Precinct -3A--13A--1 | 1,768 | 233 | 147 | 2,148 | 82.3% | 10.8% | D+71.5 |
| Precinct -3A-103A-10 | 1,591 | 200 | 141 | 1,932 | 82.3% | 10.4% | D+72.0 |
| Precinct -1SB-101SB-10 | 984 | 711 | 58 | 1,753 | 56.1% | 40.6% | D+15.6 |
| Precinct -4E-514E-51 | 1,239 | 413 | 89 | 1,741 | 71.2% | 23.7% | D+47.4 |
| Precinct -4E-204E-20 | 1,102 | 542 | 67 | 1,711 | 64.4% | 31.7% | D+32.7 |
| Precinct -4E-114E-11 | 1,155 | 426 | 102 | 1,683 | 68.6% | 25.3% | D+43.3 |
| Precinct -3A-P23A-P2 | 1,125 | 299 | 91 | 1,515 | 74.3% | 19.7% | D+54.5 |
| Precinct -2R--12R--1 | 487 | 807 | 43 | 1,337 | 36.4% | 60.4% | R+23.9 |
| Precinct -1E-301E-30 | 856 | 417 | 40 | 1,313 | 65.2% | 31.8% | D+33.4 |
| Precinct -1SB-21SB-2 | 586 | 519 | 43 | 1,148 | 51.0% | 45.2% | D+5.8 |
| Precinct -4E-404E-40 | 770 | 323 | 55 | 1,148 | 67.1% | 28.1% | D+38.9 |
| Precinct -1ES-11ES-1 | 616 | 363 | 33 | 1,012 | 60.9% | 35.9% | D+25.0 |
| Precinct -3JCF3JCF | 738 | 226 | 46 | 1,010 | 73.1% | 22.4% | D+50.7 |
| Precinct -5TU-15TU-1 | 758 | 186 | 50 | 994 | 76.3% | 18.7% | D+57.5 |
| Precinct -2HV-12HV-1 | 357 | 572 | 32 | 961 | 37.1% | 59.5% | R+22.4 |
| Precinct -1F--11F--1 | 475 | 403 | 27 | 905 | 52.5% | 44.5% | D+8.0 |
| Precinct -4E-444E-44 | 584 | 250 | 38 | 872 | 67.0% | 28.7% | D+38.3 |
| Precinct -4E-314E-31 | 592 | 217 | 37 | 846 | 70.0% | 25.7% | D+44.3 |
| Precinct -1E-471E-47 | 533 | 245 | 38 | 816 | 65.3% | 30.0% | D+35.3 |
| Precinct -3FWS3FWS | 499 | 255 | 37 | 791 | 63.1% | 32.2% | D+30.8 |
| Precinct -1FS1FS | 236 | 521 | 22 | 779 | 30.3% | 66.9% | R+36.6 |
| Precinct -5KTF15KTF1 | 430 | 281 | 36 | 747 | 57.6% | 37.6% | D+19.9 |
| Precinct -2SH-12SH-1 | 476 | 215 | 39 | 730 | 65.2% | 29.5% | D+35.8 |
| Precinct -5MK-85MK-8 | 464 | 227 | 26 | 717 | 64.7% | 31.7% | D+33.1 |
| Precinct -5KT-15KT-1 | 451 | 214 | 19 | 684 | 65.9% | 31.3% | D+34.6 |
| Precinct -3B--13B--1 | 489 | 160 | 33 | 682 | 71.7% | 23.5% | D+48.2 |
| Precinct -2SHF92SHF9 | 398 | 219 | 49 | 666 | 59.8% | 32.9% | D+26.9 |
| Precinct -3A-J13A-J1 | 531 | 60 | 33 | 624 | 85.1% | 9.6% | D+75.5 |
| Precinct -1LU1LU | 313 | 285 | 23 | 621 | 50.4% | 45.9% | D+4.5 |
| Precinct -3FWF3FWF | 406 | 155 | 23 | 584 | 69.5% | 26.5% | D+43.0 |
| Precinct -5FB5FB | 349 | 171 | 16 | 536 | 65.1% | 31.9% | D+33.2 |
| Precinct -2SH-52SH-5 | 315 | 170 | 33 | 518 | 60.8% | 32.8% | D+28.0 |
| Precinct -5BLF5BLF | 260 | 181 | 22 | 463 | 56.2% | 39.1% | D+17.1 |
| Precinct -2SHF72SHF7 | 266 | 153 | 18 | 437 | 60.9% | 35.0% | D+25.9 |
| Precinct -2CU2CU | 144 | 279 | 13 | 436 | 33.0% | 64.0% | R+31.0 |
| Precinct -3FW3FW | 261 | 147 | 16 | 424 | 61.6% | 34.7% | D+26.9 |
| Precinct -1SCD1SCD | 175 | 222 | 18 | 415 | 42.2% | 53.5% | R+11.3 |
| Precinct -5BU5BU | 263 | 137 | 15 | 415 | 63.4% | 33.0% | D+30.4 |
| Precinct -3PA-13PA-1 | 260 | 127 | 20 | 407 | 63.9% | 31.2% | D+32.7 |
| Precinct -1FS-11FS-1 | 134 | 233 | 7 | 374 | 35.8% | 62.3% | R+26.5 |
| Precinct -4E-334E-33 | 247 | 92 | 10 | 349 | 70.8% | 26.4% | D+44.4 |
| Precinct -1E-261E-26 | 201 | 128 | 15 | 344 | 58.4% | 37.2% | D+21.2 |
| Precinct -3MA-23MA-2 | 241 | 76 | 26 | 343 | 70.3% | 22.2% | D+48.1 |
| Precinct -4E-524E-52 | 240 | 85 | 15 | 340 | 70.6% | 25.0% | D+45.6 |
| Precinct -1E-351E-35 | 222 | 102 | 13 | 337 | 65.9% | 30.3% | D+35.6 |
| Precinct -2SHS4C2SHS4C | 199 | 102 | 14 | 315 | 63.2% | 32.4% | D+30.8 |
| Precinct -3ESS63ESS6 | 169 | 110 | 7 | 286 | 59.1% | 38.5% | D+20.6 |
| Precinct -1MU1MU | 174 | 70 | 30 | 274 | 63.5% | 25.5% | D+38.0 |
| Precinct -3PA-43PA-4 | 169 | 76 | 10 | 255 | 66.3% | 29.8% | D+36.5 |
| Precinct -2SH-42SH-4 | 169 | 69 | 16 | 254 | 66.5% | 27.2% | D+39.4 |
| Precinct -3A-P53A-P5 | 164 | 78 | 11 | 253 | 64.8% | 30.8% | D+34.0 |
| Precinct -2BV-12BV-1 | 109 | 129 | 10 | 248 | 44.0% | 52.0% | R+8.1 |
| Precinct -1SB-71SB-7 | 125 | 109 | 12 | 246 | 50.8% | 44.3% | D+6.5 |
| Precinct -1FB-11FB-1 | 131 | 101 | 12 | 244 | 53.7% | 41.4% | D+12.3 |
| Precinct -5T--15T--1 | 169 | 49 | 11 | 229 | 73.8% | 21.4% | D+52.4 |
| Precinct -2SH-22SH-2 | 74 | 118 | 11 | 203 | 36.5% | 58.1% | R+21.7 |
| Precinct -4E-494E-49 | 134 | 50 | 7 | 191 | 70.2% | 26.2% | D+44.0 |
| Precinct -4PE4PE | 115 | 57 | 16 | 188 | 61.2% | 30.3% | D+30.9 |
| Precinct -5KT-45KT-4 | 131 | 48 | 6 | 185 | 70.8% | 25.9% | D+44.9 |
| Precinct -3ES-73ES-7 | 115 | 59 | 7 | 181 | 63.5% | 32.6% | D+30.9 |
| Precinct -5KT-75KT-7 | 114 | 32 | 13 | 159 | 71.7% | 20.1% | D+51.6 |
| Precinct -3AS-13AS-1 | 105 | 33 | 4 | 142 | 73.9% | 23.2% | D+50.7 |
| Precinct -5BLS5BLS | 81 | 30 | 5 | 116 | 69.8% | 25.9% | D+44.0 |
| Precinct -3JC3JC | 81 | 24 | 10 | 115 | 70.4% | 20.9% | D+49.6 |
| Precinct -5AS-55AS-5 | 71 | 29 | 2 | 102 | 69.6% | 28.4% | D+41.2 |
| Precinct -5PA-35PA-3 | 63 | 25 | 6 | 94 | 67.0% | 26.6% | D+40.4 |
| Precinct -3AS-93AS-9 | 52 | 22 | 12 | 86 | 60.5% | 25.6% | D+34.9 |
| Precinct -1SB-131SB-13 | 39 | 43 | 0 | 82 | 47.6% | 52.4% | R+4.9 |
| Precinct -3GF3GF | 36 | 35 | 3 | 74 | 48.6% | 47.3% | D+1.4 |
| Precinct -4E-574E-57 | 42 | 13 | 3 | 58 | 72.4% | 22.4% | D+50.0 |
| Precinct -1RD1RD | 23 | 29 | 0 | 52 | 44.2% | 55.8% | R+11.5 |
| Precinct -2MR2MR | 23 | 11 | 2 | 36 | 63.9% | 30.6% | D+33.3 |
| Precinct -1F--71F--7 | 12 | 21 | 1 | 34 | 35.3% | 61.8% | R+26.5 |
| Precinct -5BL5BL | 24 | 7 | 3 | 34 | 70.6% | 20.6% | D+50.0 |
| Precinct -3ES-63ES-6 | 15 | 11 | 3 | 29 | 51.7% | 37.9% | D+13.8 |
| Precinct -1SB-111SB-11 | 8 | 19 | 1 | 28 | 28.6% | 67.9% | R+39.3 |
| Precinct -3AS123AS12 | 19 | 4 | 3 | 26 | 73.1% | 15.4% | D+57.7 |
| Precinct -5AS-5A5AS-5A | 11 | 9 | 1 | 21 | 52.4% | 42.9% | D+9.5 |
| Precinct -5MC5MC | 15 | 5 | 1 | 21 | 71.4% | 23.8% | D+47.6 |
| Precinct -5BM5BM | 7 | 11 | 0 | 18 | 38.9% | 61.1% | R+22.2 |
| Precinct -1SB-11SB-1 | 8 | 3 | 0 | 11 | 72.7% | 27.3% | D+45.5 |
| Precinct -3MA-13MA-1 | 4 | 4 | 2 | 10 | 40.0% | 40.0% | Even |
Presidential margin, 1876–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1876 | −18.4% |
| 1880 | −23.8% |
| 1884 | −18.1% |
| 1888 | −15.3% |
| 1892 | −10.5% |
| 1896 | −11.9% |
| 1900 | −37.5% |
| 1904 | −54.7% |
| 1908 | −46.4% |
| 1912 | +33.8% |
| 1916 | −14.9% |
| 1920 | −50.9% |
| 1924 | −49.7% |
| 1928 | −41.4% |
| 1932 | +12.0% |
| 1936 | +27.0% |
| 1940 | +13.0% |
| 1944 | +13.9% |
| 1948 | +1.2% |
| 1952 | −20.3% |
| 1956 | −5.5% |
| 1960 | +6.0% |
| 1964 | +32.7% |
| 1968 | −0.7% |
| 1972 | −2.7% |
| 1976 | +12.6% |
| 1980 | −14.2% |
| 1984 | −4.9% |
| 1988 | +16.0% |
| 1992 | +17.6% |
| 1996 | +8.7% |
| 2000 | +2.9% |
| 2004 | +18.6% |
| 2008 | +28.1% |
| 2012 | +27.1% |
| 2016 | +24.7% |
| 2020 | +33.1% |
| 2024 | +28.4% |
U.S. Senate
Registered voters
By party of registration, over time
Registration leans Democratic; the presidential vote runs 7.1 points more Republican.
82,097 registered voters · 2024 · down from 84,267 in 2022
Who moves in and out
Net migration over time, and who arrivals are — where they came from and what those places vote
−296 net domestic migration · 2025
Net −3,926 over 2011–2025 · gain loss
Arrivals reported $53,320 in average income, against $70,216 for residents who stayed — 24% lower. (IRS SOI, 2022–23)
The places arrivals came from lean D+16.9 on average — 12 points more Republican-leaning than Humboldt County, CA itself (D+28.4).
Where arrivals came from lean of each source
- Los Angeles County, CA179D+32.9
- San Diego County, CA110D+16.8
- Sacramento County, CA107D+19.7
- Shasta County, CA88R+36.5
- Sonoma County, CA84D+46.2
- Orange County, CA69D+2.7
Where departures went households, 2022–23
- Los Angeles County, CA136
- Shasta County, CA123
- Sacramento County, CA100
- San Diego County, CA85
- Sonoma County, CA72
- Butte County, CA71
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 | −185 |
| 2012 | −869 |
| 2013 | −434 |
| 2014 | −20 |
| 2015 | +437 |
| 2016 | +1,026 |
| 2017 | +137 |
| 2018 | −231 |
| 2019 | −625 |
| 2021 | −1,032 |
| 2022 | +191 |
| 2023 | −659 |
| 2024 | −1,366 |
| 2025 | −296 |
Humboldt's D+28 presidential margin coexists with a long history of tension between environmentalists and the extractive industries — logging and fishing — that once defined the regional economy.
Across the recorded series it reached a Democratic high of 33.8 points in 1912 and a Republican high of 54.7 points in 1904. Between 2020 and 2024 the county moved 4.7 points toward the Republican candidate; the 2024 margin was 28.4 points.
A population of 134,541, a 70% non-Hispanic-white share, and a median household income of $61,160 describe the county. The county's voting pattern over the last decade is most similar to that of Lane County and Multnomah County.
The counties whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
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 →
Humboldt County, California. Akashic. https://akashic.app/county/06023/. Accessed May 20, 2026. License: CC BY 4.0.