Marin County, California

31 cities & places have their primary county here.

Population: 258,765
Median household income: $142,785
Median home value: $1,390,000

Home to 258,765 residents, Marin County is one of California's counties. 31 cities and places have their primary county here. Its median household income of $142,785 runs above the California figure of $96,334.

From 2019 to 2023, Marin County's population held roughly steady from 259,943 to 258,765, while its median household income rose 23.9% from $115,246 to $142,785.

62.9% of homes are single-family detached houses. The typical home was built around 1966.

Demographics

ACS 2019–2023

Population: 258,765
Median age: 47.3 yrs
Median household income: $142,785
Median home value: $1,390,000
Median gross rent: $2,584
Housing units: 111,860
Homeownership rate: 63.9%
Bachelor's degree or higher: 60.5%
Unemployment rate: 6.1%

Trends

ACS 5-year · 2019–2023

Population

259,943258,765

Median household income

$115,246$142,785

Median home value

$995,800$1,390,000

Median gross rent

$2,069$2,584

Year	Population	Median household income	Median home value	Median gross rent
2019	259,943	$115,246	$995,800	$2,069
2020	259,441	$121,671	$1,053,600	$2,170
2021	262,387	$131,008	$1,118,300	$2,307
2022	260,485	$142,019	$1,291,800	$2,487
2023	258,765	$142,785	$1,390,000	$2,584

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 54.4%

5 to 1715.3%

18 to 246.9%

25 to 348.5%

35 to 4411.8%

45 to 5414.9%

55 to 6415.0%

65 to 7413.1%

75 and over10.2%

	Count	Share
Under 5	11,472	4.4%
5 to 17	39,540	15.3%
18 to 24	17,800	6.9%
25 to 34	21,946	8.5%
35 to 44	30,410	11.8%
45 to 54	38,608	14.9%
55 to 64	38,797	15.0%
65 to 74	33,883	13.1%
75 and over	26,309	10.2%

Race & ethnicity

	Count	Share
White (non-Hispanic)	172,256	66.6%
Black or African American	5,544	2.1%
American Indian & Alaska Native	189	0.1%
Asian	15,755	6.1%
Native Hawaiian & Pacific Islander	417	0.2%
Some other race	2,028	0.8%
Two or more races	13,448	5.2%
Hispanic or Latino (any race)	49,128	19.0%

Educational attainment (age 25+)

No high school diploma7.3%

High school graduate10.8%

Some college or associate's21.5%

Bachelor's degree33.2%

Graduate or professional degree27.2%

	Count	Share
No high school diploma	13,801	7.3%
High school graduate	20,478	10.8%
Some college or associate's	40,830	21.5%
Bachelor's degree	63,089	33.2%
Graduate or professional degree	51,755	27.2%

Commute to work

Mean travel time to work: 28 min

Drove alone53.7%

Carpooled7.7%

Public transit4.9%

Walked3.5%

Bicycle1.0%

Worked from home27.9%

Other means1.3%

How workers get to work

	Count	Share
Drove alone	66,418	53.7%
Carpooled	9,555	7.7%
Public transit	6,014	4.9%
Walked	4,302	3.5%
Bicycle	1,293	1.0%
Worked from home	34,574	27.9%
Other means	1,559	1.3%

Travel time

	Count	Share
Under 15 min	23,176	26.0%
15 to 29 min	27,978	31.4%
30 to 44 min	17,839	20.0%
45 to 59 min	9,014	10.1%
60+ min	11,134	12.5%

Households

Average household size: 2.44
Poverty rate: 7.8% (19,907 of 254,311)

	Count	Share
Family households	65,149	63.1%
Nonfamily households	38,052	36.9%

Housing

Median year structure built: 1966

Occupancy

	Count	Share
Occupied	103,201	92.3%
Vacant	8,659	7.7%

Tenure (of occupied units)

	Count	Share
Owner-occupied	65,927	63.9%
Renter-occupied	37,274	36.1%

1-unit, detached62.9%

1-unit, attached7.7%

2 to 4 units8.5%

5 to 19 units10.4%

20 or more units8.7%

Mobile home & other1.6%

Units in structure

	Count	Share
1-unit, detached	70,401	62.9%
1-unit, attached	8,631	7.7%
2 to 4 units	9,545	8.5%
5 to 19 units	11,664	10.4%
20 or more units	9,783	8.7%
Mobile home & other	1,836	1.6%

Geography

County GEOID: 06041
State: California
Land area: 520 sq mi
Water area: 308 sq mi
Center point: 38.0514, -122.7464