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Kern County, California

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464,513
Active registered voters
1,452
Precincts
181,027
Supervoters (38.97%)
5
Presidential cycles of results

Data as of October 18, 2026 · refreshed automatically from the official California voter file

Kern County, CA has 464,513 active registered voters — 36.8% Republican, 33.7% Democratic, and 21.2% with no party affiliation, as of October 2026.

Party registration

DEM 33.7%
REP 36.8%
NPA 21.2%
Other 8.4%
Democratic 156,361 · Republican 170,719 · No Party Affiliation 98,470 · Other parties 38,963
Source: Motion51 voter database — official California voter file

Most reliable-voting precincts

#PrecinctActive votersSupervotersSupervoter %
1001511148541184.74%
2001513673859380.35%
3004045347236777.75%
4004410083263576.32%
5004329049436573.89%
6002114959342972.34%
7004413251136972.21%
8004045250636471.94%
9004040154438971.51%
10002114472851070.05%

Supervoters are active registered voters who cast a ballot in at least 3 of the last 4 November general elections (2018–2024). Percentages are precinct totals from the official state voter file — no individual voter information is shown. Precincts with fewer than 400 active voters are excluded.

Source: Motion51 voter database — official California voter file

How Kern County voted for president

40.1
57.9
2008
38.5
59.4
2012
39.7
54.7
2016
43.7
53.9
2020
38.2
59.3
2024
■ Democratic %   ■ Republican %  ·  2024 total votes cast: 283,246

Election results are public records.

Source:  Official county canvasses via MIT Election Data + Science Lab

Kern County at a glance.

Kern County had an estimated 922,529 residents in July 2024, the 11th most populous of California's 58 counties, up 1.5% since the 2020 census. Of those, 665,289 are 18 or older, the voting-age population, and 12.4% are 65 or older. Its 464,513 active registered voters equal about 69.8% of that voting-age population.

It covers 8,135 square miles of land (113 people per square mile), and 33.3% of residents live outside any incorporated city or town. The largest cities and towns are Bakersfield (417,468), Delano (53,198), Ridgecrest (28,373), Wasco (27,409) and Shafter (22,754). The American Community Survey (2020-2024) puts it at a median age of 32.7, a median household income of $70,210, 18.8% of adults 25 and older holding a bachelor's degree or higher and 60.1% of occupied homes owned by the people living in them.

In 2024, 283,246 votes were cast for president, about 42.6% of the voting-age population; the Democratic ticket took 38.2% and the Republican ticket 59.3%. The two-party margin moved from R+17.8 in 2008 to R+21.1 in 2024.

Population (2024 estimate)
922,529
Population (2020 census base)
909,233
Voting-age population (18+)
665,289
Active voters per 100 adults
69.8
Residents 65 and older
12.4%
People per square mile
113
Living outside incorporated places
33.3%
Land area
8,135 sq mi
Median age
32.7
Median household income
$70,210
Adults 25+ with a bachelor's degree
18.8%
Owner-occupied homes
60.1%

Largest cities and towns

  1. Bakersfield 417,468
  2. Delano 53,198
  3. Ridgecrest 28,373
  4. Wasco 27,409
  5. Shafter 22,754

Presidential vote, 2008–2024

YearDemocraticRepublicanMarginVotes cast
202438.2%59.3%R+21.1283,246
202043.7%53.9%R+10.2305,226
201639.7%54.7%R+15.0217,725
201238.5%59.4%R+20.9168,116
200840.1%57.9%R+17.8232,850

Sources: U.S. Census Bureau Vintage 2024 population estimates and 2024 Gazetteer; American Community Survey 2020–2024 5-year estimates; certified county presidential returns. Growth, density and turnout are simple arithmetic on those figures.

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