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COUNTY · 2020 ACS

Marin County

California · 262,321 residents · 520.141 sq mi
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The short version

Marin County is significantly wealthier than the US average, with a median household income of $121,671. Population has held roughly steady since 2000. 60% of adults hold a bachelor's degree or higher, well above the national rate of 33%. Median home value has more than doubled since 2000, reaching $1,053,600. With a median age of 46.5, the population is older than the US median of 38.8. Households here earn about 55% more than the California median.

At a glance
Wealthier
above the US median
US median: $66,278
Older
median age 46.5
US median: 38.8
More educated
60% hold a bachelor's degree
US average: 33%
Less affordable
home values up 42%, inflation adjusted
US median home: $265,253
Section 01

Population & growth

Total population
262,321
+6%since 2000
from 247,289 in 2000
1990 – 2025
Population density
504 / sq mi
+6%since 2000
from 475 / sq mi in 2000
US average: 280
Median age
46.5
+13%since 2000
from 41.3 in 2000
US average: 38.8
Population, 1990 – 2024
227K237K246K256K266K1990201020202024Marin County
2024258K
1990201020202024
Section 02

Income & economy

Median household income
$121,671
+14%inflation adjusted, since 2000
from $71,306 in 2000
US average: $66,278
1990 – 2024
Per capita income
$74,446
+66%since 2000
from $44,962 in 2000
US average: $35,364
Households earning $100K+
67.2%
+10.4 ptssince 2009
from 56.9% in 2009
US average: 43.9%
Poverty rate
6.9%
+0.3 ptssince 2000
from 6.6% in 2000
US average: 12.8%
Workforce by industry, 2020
Other services9.7%
US avg: 6.6%
Information9.7%
US avg: 11.1%
Wholesale trade6.2%
US avg: 6.7%
Public administration5.9%
US avg: 4.7%
Retail trade4.6%
US avg: 10%
Arts, entertainment, food3.9%
US avg: 2%
Finance & insurance3%
US avg: 5.5%
Professional, scientific, technical2.4%
US avg: 4.7%
Transportation & warehousing2.2%
US avg: 2.5%
Agriculture, forestry, fishing0.8%
US avg: 1.7%
Construction0.7%
US avg: 1.2%
Education & health services0.5%
US avg: 0.8%
Manufacturing0.1%
US avg: 0.5%
BARS: THIS PLACE · TICKS: US AVERAGE
Section 03

Housing

Median home value
$1,053,600
+42%inflation adjusted, since 2000
from $493,300 in 2000
US average: $265,253
1990 – 2024
Median gross rent
$2,170
+24%inflation adjusted, since 2000
from $1,162 in 2000
US average: $1,124
Owner-occupied
62.0%
−1.6 ptssince 2000
from 63.6% in 2000
38.0% rent
Afford Score
8.7
+25%since 2000
from 6.9 in 2000
1990 – 2024
RELATED:See current rent listings in Marin County on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic78.6%(194,254)
Black2.8%(6,946)
Hispanic / Latino11.1%(27,351)
Asian4.5%(11,078)
Other0%
Diversity Score40.9%(101,033)
Segregation Score0%
2020
White, non-Hispanic66%(173,149)
Black2.3%(6,120)
Hispanic / Latino18.8%(49,410)
Asian6.2%(16,175)
Other5.4%(14,242)
Diversity Score63.7%(167,085)
Segregation Score32.7%(85,804)
Diversity Score
64
+56%since 2000
from 41 in 2000
1990 – 2024
Segregation Score
33
Section 05

Education

Bachelor's degree or higher
60.2%
+8.9 ptssince 2000
from 51.3% in 2000
US average: 32.9%
High school or higher
93.6%
+2.4 ptssince 2000
from 91.2% in 2000
US average: 88.5%
Graduate degree
25.8%
+5.3 ptssince 2000
from 20.5% in 2000
US average: 12.7%
Section 06

Commute & transportation

Average commute
31.8 min
+28%since 2000
from 24.9 min in 2000
US average: 26.9
Drive alone to work
62.5%
−4.6 ptssince 2009
from 67.1% in 2009
US average: 75.1%
No vehicle available
4.3%
−0.9 ptssince 2009
from 5.1% in 2009
US average: 8.4%
Section 07

Work & employment

Unemployment rate
4.5%
−1.8 ptssince 2011
from 6.3% in 2011
US average: 5.4%
Labor force participation
63.8%
−1.5 ptssince 2011
from 65.2% in 2011
US average: 63.4%
Management & professional
56.7%
−15.8 ptssince 2009
from 72.5% in 2009
US average: 39.3%
Section 08

People & community

Male
48.8%
−1.1 ptssince 2009
from 49.9% in 2009
Female
51.2%
+1.1 ptssince 2009
from 50.1% in 2009
Foreign born
18.3%
−0.1 ptssince 2009
from 18.3% in 2009
US average: 13.5%
Uninsured
3.2%
−87.9 ptssince 2013
from 91.1% in 2013
US average: 8.8%
Drill deeper

Places similar to Marin County

Forsyth County
Pop 282,805
Howard County
Pop 339,183
Douglas County
Pop 399,396
Santa Cruz County
Pop 258,852
Places similar to Marin County
Head to head

Compare Marin County to nearby counties

MARIN COUNTY VS
San Francisco County
Income$140,970+16%
Home value$1,394,500+32%
Population826,079+226%
SEE FULL COMPARISON →
MARIN COUNTY VS
Sonoma County
Income$104,674−14%
Home value$815,500−23%
Population486,444+92%
SEE FULL COMPARISON →
MARIN COUNTY VS
Napa County
Income$111,471−8%
Home value$869,500−17%
Population132,949−48%
SEE FULL COMPARISON →
MARIN COUNTY VS
Contra Costa County
Income$127,229+5%
Home value$866,800−18%
Population1,170,070+361%
SEE FULL COMPARISON →
Frequently asked

How many people live in Marin County, California?

Marin County, California has about 262,321 residents according to the 2020 American Community Survey.

What is the median household income in Marin County, California?

The typical household in Marin County, California earns about $121,671 a year. Half of households make more than that, and half make less.

Is Marin County, California expensive?

In Marin County, California, the median home is worth about $1,053,600, and the typical rent is about $2,170 a month.

How educated are people in Marin County, California?

About 60.2% of adults age 25 and over in Marin County, California hold a bachelor's degree or higher.

What is the poverty rate in Marin County, California?

About 6.9% of people in Marin County, California live below the federal poverty line.

Has Marin County, California grown since 1990?

Yes, Marin County, California has grown since 1990. The population has added about 32,225 residents, a change of about 14 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

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