Marin County, California
Population, Census, April 1, 2020 262,321
People
Population
Population estimates, July 1, 2025, (V2025) 253,694
Population estimates, July 1, 2024, (V2024) 256,400
Population estimates base, April 1, 2020, (V2025) 262,312
Population estimates base, April 1, 2020, (V2024) 262,325
Population, percent change - April 1, 2020 (estimates base) to July 1, 2025, (V2025) -3.3%
Population, percent change - April 1, 2020 (estimates base) to July 1, 2024, (V2024) -2.3%
Population, Census, April 1, 2020 262,321
Population, Census, April 1, 2010 252,409
Age and Sex
Persons under 5 years, percent 4.4%
Persons under 18 years, percent 18.7%
Persons 65 years and over, percent 25.0%
Female persons, percent 50.9%
Race and Hispanic Origin
White alone, percent 83.9%
Black alone, percent(a) 2.9%
American Indian and Alaska Native alone, percent(a) 1.3%
Asian alone, percent(a) 7.2%
Native Hawaiian and Other Pacific Islander alone, percent(a) 0.3%
Two or More Races, percent 4.4%
Hispanic or Latino, percent(b) 20.4%
White alone, not Hispanic or Latino, percent 66.3%
Population Characteristics
Veterans, 2020-2024 7,912
Foreign-born persons, percent, 2020-2024 19.6%
Housing
Housing Units, July 1, 2025, (V2025) 113,112
Owner-occupied housing unit rate, 2020-2024 64.7%
Median value of owner-occupied housing units, 2020-2024 $1,507,300
Median selected monthly owner costs - with a mortgage, 2020-2024 $4,000+
Median selected monthly owner costs - without a mortage, 2020-2024 $1,315
Median gross rent, 2020-2024 $2,668
Building Permits, 2025 149
Families & Living Arrangements
Households, 2020-2024 103,018
Persons per household, 2020-2024 2.44
Living in the same house 1 year ago, percent of persons age 1 year+ , 2020-2024 89.7%
Language other than English spoken at home, percent of persons age 5 years+, 2020-2024 23.9%
Computer and Internet Use
Households with a computer, percent, 2020-2024 97.7%
Households with a broadband Internet subscription, percent, 2020-2024 95.8%
Education
High school graduate or higher, percent of persons age 25 years+, 2020-2024 92.8%
Bachelor's degree or higher, percent of persons age 25 years+, 2020-2024 61.1%
Health
With a disability, under age 65 years, percent, 2020-2024 5.6%
Persons without health insurance, under age 65 years, percent 4.5%
Economy
In civilian labor force, total, percent of population age 16 years+, 2020-2024 62.2%
In civilian labor force, female, percent of population age 16 years+, 2020-2024 57.5%
Total accommodation and food services sales, 2022 ($1,000)(c) 1,216,460
Total health care and social assistance receipts/revenue, 2022 ($1,000)(c) 3,246,007
Total transportation and warehousing receipts/revenue, 2022 ($1,000)(c) 2,738,185
Total retail sales, 2022 ($1,000)(c) 7,322,663
Total retail sales per capita, 2022(c) $28,587
Transportation
Mean travel time to work (minutes), workers age 16 years+, 2020-2024 27.4
Income & Poverty
Median households income (in 2024 dollars), 2020-2024 $149,091
Per capita income in past 12 months (in 2024 dollars), 2020-2024 $93,920
Persons in poverty, percent 9.9%
Businesses
Businesses
Total employer establishments, 2023 10,049
Total employment, 2023 106,249
Total annual payroll, 2023 ($1,000) 9,219,043
Total employment, percent change, 2022-2023 2.7%
Total nonemployer establishments, 2023 34,635
All employer firms, Reference year 2023 8,422
Male-owned employer firms, Reference year 2023 4,383
Female-owned employer firms, Reference year 2023 2,626
Minority-owned employer firms, Reference year 2023 1,223
Nonminority-owned employer firms, Reference year 2023 6,340
Veteran-owned employer firms, Reference year 2023 238
Nonveteran-owned employer firms, Reference year 2023 7,376
Geography
Geography
Population per square mile, 2020 504.1
Population per square mile, 2010 485.1
Land area in square miles, 2020 520.42
Land area in square miles, 2010 520.31
FIPS Code 06041