Mendocino County, California

2024 results by precinct

165 precincts · 39,219 votes cast

Harris · D+27

Harris +50

Trump +50

Real precinct boundaries. Hover for vote totals.

38 presidential elections

Year	Won	Margin	Democratic	Republican	Total
2024	D	+26.8%	24,049	13,528	39,219
2020	D	+35.8%	28,782	13,267	43,340
2016	D	+29.5%	22,079	10,888	37,915
2012	D	+38.5%	23,193	9,658	35,137
2008	D	+42.6%	27,843	10,721	40,184
2004	D	+29.7%	24,385	12,955	38,429
2000	D	+12.7%	16,634	12,272	34,410
1996	D	+15.9%	14,952	9,765	32,692
1992	D	+28.4%	18,344	7,958	36,538
1988	D	+13.5%	17,152	12,979	30,947
1984	R	−6.2%	14,407	16,369	31,422
1980	R	−5.8%	10,784	12,432	28,224
1976	D	+4.0%	10,653	9,784	21,509
1972	R	−7.8%	9,435	11,128	21,814
1968	R	−2.1%	7,935	8,305	17,904
1964	D	+30.4%	11,869	6,322	18,227
1960	D	+0.9%	9,476	9,301	18,871
1956	R	−14.1%	7,767	10,327	18,137
1952	R	−22.2%	6,580	10,388	17,157
1948	R	−6.5%	5,553	6,368	12,603
1944	D	+7.9%	5,452	4,655	10,143
1940	D	+13.6%	7,055	5,345	12,569
1936	D	+26.9%	6,432	3,670	10,266
1932	D	+26.2%	5,867	3,365	9,551
1928	R	−28.8%	2,628	4,810	7,588
1924	R	−44.4%	739	3,465	6,137
1920	R	−39.3%	1,789	4,443	6,749
1916	R	−1.6%	3,371	3,494	7,468
1912	D	+44.4%	2,507	0	5,648
1908	R	−20.1%	1,752	2,746	4,942
1904	R	−30.0%	1,489	2,904	4,718
1900	R	−8.0%	1,861	2,192	4,124
1896	D	+0.6%	2,120	2,093	4,278
1892	D	+7.7%	2,023	1,709	4,082
1888	D	+7.7%	2,006	1,711	3,821
1884	D	+9.0%	1,589	1,317	3,013
1880	D	+15.0%	1,313	969	2,290
1876	D	+16.0%	1,283	929	2,212

Demographics

Race, ethnicity, and ancestry

Click any group to see the ancestries typically reported within it.

American

100.0%

Irish

0.5%

Sample size too small to break out by ancestry reliably.

Multiple ancestry combinations reported; no single grouping above 1%.

American Indian, Alaska Native, Native Hawaiian, and Pacific Islander combined.

Source · American Community Survey 5-year estimates, 2024 release. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.

Age distribution by sex

Median age: 44.1 in this county, 39.1 nationally

Male

Age

Female

0.8%

85+

1.3%

3.6%

75–84

3.9%

7.1%

65–74

7.8%

6.3%

55–64

6.7%

5.8%

45–54

5.8%

6.2%

35–44

6.0%

5.6%

25–34

5.2%

3.5%

18–24

3.4%

8.1%

5–17

7.7%

2.4%

2.7%

Source · American Community Survey 5-year estimates, 2024 release.

Median household income

2024 inflation-adjusted dollars

$68,092

Mendocino County ranks near the middle of US counties.

Mendocino County$68,092

California$99,122

United States$80,734

Source · American Community Survey 5-year estimates, 2024 release.

Poverty rate

All persons below federal poverty line

15.4%

Children face moderate poverty.

Children under 1818.0%

Working age (18–64)100.0%

Seniors (65+)18.0%

Source · American Community Survey 5-year estimates, 2024 release.

Language at home

Population aged 5 and older

0.0%

speak English only

Source · ACS 5-year estimates, 2024.

Religious adherents

Adherents per capita by tradition

Catholic & Orthodox

17.5%

Non-Christian

11.8%

Other Christian

6.5%

Mainline Protestant

1.2%

Baptist

1.2%

Pentecostal & Holiness

0.9%

Methodist

0.9%

Source · 2020 US Religion Census. Remaining 60.0% of residents not counted as adherents by any reporting body.

Mendocino's sparse population, rugged Pacific coastline, and long-established counterculture communities have anchored its Democratic lean for decades, with 2024's D+26.8 margin consistent with its recent presidential-cycle pattern.

The Democratic margin in Mendocino County peaked at forty-four points in 1912. By 1988 the county had flipped, voting Republican for the first time in many years. The 2024 margin was twenty-seven points, the most Democratic-leaning result in the county's modern history.

The economic context is the key. Mendocino County's median household income of $68,092 sits well below state and national norms, and 15% of residents live below the federal poverty line. The shift here is part of a broader realignment of working-class places across the country. The county's voting pattern over the last decade is most similar to that of Windham County and Santa Cruz County.

Most similar counties

Mendocino County was solidly one party for decades. In the last twenty years, it flipped.