Mendocino County Population

1850–2026

87,305

2026 projection

4.4% since 2020 (decrease)

020K40K60K80K100K186018801900192019401960198020002020

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Mendocino County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202687,305-8170.93%
202588,122-8170.92%
202488,939-4020.45%
202389,341-6920.77%
202290,033-1,2331.35%
202191,266-820.09%
202091,348+4,4165.08%
201986,932-6170.70%
201887,549-1410.16%
201787,690+3710.42%

Showing 10 of 32 years.

Mendocino County Demographics

44.1median age

Median age

Female45.5 yrs
Male43.2 yrs

Adults

71,347
22,154 seniors (65+) · 31% of adults49,193 other adults

Sex

Female 50.4% · 45,508Male 49.6% · 44,736

Population by age

MaleFemale85+ years, male: 71985+ years, female: 1,20280–84 years, male: 1,31580–84 years, female: 1,20075–79 years, male: 1,95575–79 years, female: 2,33370–74 years, male: 3,28870–74 years, female: 3,22665–69 years, male: 3,12765–69 years, female: 3,78960–64 years, male: 3,15760–64 years, female: 3,05555–59 years, male: 2,56955–59 years, female: 2,96550–54 years, male: 2,60550–54 years, female: 2,69445–49 years, male: 2,64545–49 years, female: 2,50440–44 years, male: 2,79340–44 years, female: 2,79935–39 years, male: 2,81935–39 years, female: 2,57430–34 years, male: 2,66430–34 years, female: 2,49225–29 years, male: 2,40825–29 years, female: 2,19620–24 years, male: 2,19320–24 years, female: 2,19215–19 years, male: 2,78015–19 years, female: 2,38710–14 years, male: 2,48710–14 years, female: 2,7645–9 years, male: 3,0095–9 years, female: 2,6730–4 years, male: 2,2030–4 years, female: 2,46385+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–41K1K2K2K3K3K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 902 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Mendocino County Income

$68,092median household income

Median household income

$68,092

Half of households earn more, half earn less

Median earnings

$45,711

Typical yearly pay for a worker 25 or older.

Poverty rate

15.4%

About 1 in 7 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Mendocino County Marital Status

42% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married42%43%41%
Never married33%38%29%
Divorced16%14%17%
Widowed7%4%11%
Separated2%2%2%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201

Sources

8 sources, all from the U.S. Census Bureau

Population

American Community Survey, 2024 5-year