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Madera County, California

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83,297
Active registered voters
273
Precincts
37,270
Supervoters (44.74%)
5
Presidential cycles of results

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

Madera County, CA has 83,297 active registered voters — 38.9% Republican, 31.1% Democratic, and 21.5% with no party affiliation, as of October 2026.

Party registration

DEM 31.1%
REP 38.9%
NPA 21.5%
Other 8.5%
Democratic 25,947 · Republican 32,382 · No Party Affiliation 17,868 · Other parties 7,100
Source: Motion51 voter database — official California voter file

Most reliable-voting precincts

#PrecinctActive votersSupervotersSupervoter %
1504184957567.73%
2502171046665.63%
3504950533065.35%
4504892160165.26%
550421,5811,02564.83%
6504673347264.39%
750631,6841,06663.3%
8504049731463.18%
9102151131661.84%
1050441,14971061.79%

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 Madera County voted for president

42.4
55.7
2008
39.2
58.7
2012
38.8
56.1
2016
43.1
54.7
2020
38.4
59.2
2024
■ Democratic %   ■ Republican %  ·  2024 total votes cast: 54,624

Election results are public records.

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

Madera County at a glance.

Madera County had an estimated 165,432 residents in July 2024, the 32nd most populous of California's 58 counties, up 5.9% since the 2020 census. Of those, 121,480 are 18 or older, the voting-age population, and 14.7% are 65 or older. Its 83,297 active registered voters equal about 68.6% of that voting-age population.

It covers 2,137 square miles of land (77 people per square mile), and 46.6% of residents live outside any incorporated city or town. The largest cities and towns are Madera (69,094) and Chowchilla (19,191). The American Community Survey (2020-2024) puts it at a median age of 34.6, a median household income of $76,627, 17.9% of adults 25 and older holding a bachelor's degree or higher and 67.5% of occupied homes owned by the people living in them.

In 2024, 54,624 votes were cast for president, about 45.0% of the voting-age population; the Democratic ticket took 38.4% and the Republican ticket 59.2%. The two-party margin moved from R+13.3 in 2008 to R+20.8 in 2024.

Population (2024 estimate)
165,432
Population (2020 census base)
156,254
Voting-age population (18+)
121,480
Active voters per 100 adults
68.6
Residents 65 and older
14.7%
People per square mile
77
Living outside incorporated places
46.6%
Land area
2,137 sq mi
Median age
34.6
Median household income
$76,627
Adults 25+ with a bachelor's degree
17.9%
Owner-occupied homes
67.5%

Largest cities and towns

  1. Madera 69,094
  2. Chowchilla 19,191

Presidential vote, 2008–2024

YearDemocraticRepublicanMarginVotes cast
202438.4%59.2%R+20.854,624
202043.1%54.7%R+11.653,722
201638.8%56.1%R+17.334,263
201239.2%58.7%R+19.532,372
200842.4%55.7%R+13.342,355

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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