Marin County, California Population 2022

Marin County, California's estimated population is 256,318 with a growth rate of -0.33% in the past year according to the most recent United States census data. Marin County, California is the 27th largest county in California. The 2010 Population was 252,904 and has seen a growth of 1.35% since this time.

Note: 2021 and 2022 data is projected
Year Population Growth Annual Growth Rate
18503230.00%
18603,3343,011932.20%
18706,9033,569107.05%
188011,3244,42164.04%
189013,0721,74815.44%
190015,7022,63020.12%
191025,1149,41259.94%
192027,3422,2288.87%
193041,64814,30652.32%
194052,90711,25927.03%
195085,61932,71261.83%
1960146,82061,20171.48%
1970206,03859,21840.33%
1980222,56816,5308.02%
1990230,0967,5283.38%
2010252,90422,8089.91%
2011255,3762,4720.98%
2012256,0616850.27%
2013258,4092,3480.92%
2014260,3591,9500.75%
2015260,9165570.21%
2016260,562-354-0.14%
2017259,749-813-0.31%
2018259,662-87-0.03%
2019258,826-836-0.32%
2020257,990-836-0.32%
2021257,154-836-0.32%
2022256,318-836-0.33%
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Marin County, California Population Growth

Population by Race

Race Population Percentage
White199,06876.73%
Black or African American6,0012.31%
American Indian and Alaska Native6730.26%
Asian15,0605.80%
Native Hawaiian and Other Pacific Islander3610.14%
Some Other Race20,8458.03%
Two or More Races17,4336.72%
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Marin County, California Population by Race

Marin County, California Population Pyramid 2022

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Marin County, California Median Age

47.1


Total

45.6


Male

48.4


Female

Marin County, California Adults

There are 207,467 adults, (57,834 of whom are seniors) in Marin County, California.

Marin County, California Age Dependency

Age Dependency Ratio

38.7

Old Age Dependency Ratio

34.7

Child Dependency Ratio

Marin County, California Sex Ratio

Female

132,912

51.23%

Male

126,529

48.77%

Marin County, California Population by Age

Marin County, California Renter vs Owner Occupied by Household Type

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Marin County, California Household Types

Type Owner Renter
Married76.4%23.6%
All63.6%36.4%
Male51.4%48.6%
Non Family50.4%49.6%
Female48.6%51.4%

63.6%

Rate of Home Ownership

Marin County, California Households and Families

Type Count Average Size Owned
All104,9002.4163.6
Married53,7103.0576.4
Male3,7273.0451.4
Female8,6643.1148.6
Non Family38,7991.2950.4

2.97

Average Family Size

2.41

Average Household Size

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Marin County, California Households by Type

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Education Attained Count Percentage
Less Than 9th Grade7,6194.00%
9th to 12th Grade4,5182.37%
High School Graduate19,53410.25%
Some College32,44417.03%
Associates Degree11,7846.19%
Bachelors Degree65,50334.38%
Graduate Degree49,10125.77%
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Marin County, California Educational Attainment by Sex (over 25)

Marin County, California Educational Attainment by Race

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Race Total High School Bachelors
White143,075140,10495,317
Asian12,20311,1887,688
2+ Races9,1188,5494,880
Hispanic24,18716,8376,928
Black4,2933,574895
Other Race11,5136,6301,923
Native American42831734
Islander2401914

The highest rate of high school graduation is among white people with a rate of 97.92%.

The highest rate of bachelors degrees is among white people with a rate of 66.62%.

Marin County, California Educational Attainment by Race

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Name Average Male Female
Overall$67,212$81,615$54,704
Less Than 9th Grade$25,769$28,935$21,945
High School Graduate$40,231$44,375$31,534
Some College$46,676$55,947$38,249
Bachelors Degree$80,832$105,863$61,390
Graduate Degree$111,546$144,282$89,477

$67,212

Average Earnings

$81,615

Average Male

$54,704

Average Female

Marin County, California Earnings by Educational Attainment

Marin County, California Language by Age

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Marin County, California Language

78.94% of Marin County, California residents speak only English, while 21.06% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 11.47% of the population.

Marin County, California Language

Marin County, California Poverty by Race

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Name Total In Poverty Poverty Rate
Native59613923.32%
Hispanic39,9916,28615.72%
Black5,06065112.87%
Multiple16,8881,2807.58%
Asian14,4941,0877.50%
White181,2528,5624.72%
Islander33092.73%
Other4,464NaN%

6.90%

Overall Poverty Rate

6.44%

Male Poverty Rate

7.33%

Female Poverty Rate

Poverty in Marin County, California

The race most likely to be in poverty in Marin County, California is Native, with 23.32% below the poverty level.

The race least likely to be in poverty in Marin County, California is Other, with NaN% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.57%. Among those working part-time, it was 7.63%, and for those that did not work, the poverty rate was 12.60%.

Marin County, California Poverty

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Name Poverty
Less Than 9th Grade21.61%
High School9.55%
Some College7.20%
Bachelors or Greater3.88%

Marin County, California Poverty Rate by Education

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Rate Poverty
Male Employed2.63%
Male Unemployed20.12%
Female Employed4.19%
Female Unemployed17.07%

Marin County, California Poverty Rate by Employment Status and Sex

Marin County, California Income by Household Type

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Name Median Mean
Households$121,671$181,737
Families$159,898$223,262
Married Families$182,363-
Non Families$67,274$104,746
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Income by Household Type

Marin County, California Marital Status

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Marriage Rates

52.4%

Overall Marriage Rate

56.1%

Male Marriage Rate

48.8%

Female Marriage Rate

Marin County, California Married by Age and Sex

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Marin County, California Marriage

The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 35-44.

Marin County, California Marital Status by Race

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Marin County, California Marital Status

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9,370

Number of Veterans

Male Veterans

Female Veterans

War Veterans
Second Gulf War909
First Gulf War889
Vietnam3,760
Korea1,174
World War II556

Marin County, California Veterans by War

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Age Group Veterans
18 to 34549
35 to 54953
55 to 641,054
65 to 742,653
75+4,161

Marin County, California Veterans by Age

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Name Veterans % of Total
White8,2905.05%
Black3046.25%
Native American6413.09%
Asian2862.14%
Islander155.88%
Other Race1631.16%
2+ Races2482.40%
Hispanic4181.47%

Marin County, California Veterans by Race

Marin County, California Veterans by Education

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2.94%

Veteran Poverty Rate

26.89%

Veteran Disability Rate

Marin County, California Veterans by Education

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63.8%

Labor Force Participation

60.8%

Employment Rate

4.5%

Unemployment Rate

Marin County, California Employment by Age

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Marin County, California Employment by Race

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Marin County, California Employment by Education

Origin of Non-Citizens

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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

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50.59%

Born in Marin County, California

81.74%

Native Born

18.26%

Foreign Born

9.30%

Non Citizen

8.96%

Naturalized

Place of Birth

81.74% of Marin County, California residents were born in the United States, with 50.59% having been born in California. 9.30% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Marin County, California Place of Birth

  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990

Sources