Sonoma County, California Population 2020

Sonoma County, California's estimated population is 493,334 with a growth rate of -0.67% in the past year according to the most recent United States census data. Sonoma County, California is the 17th largest county in California.

Year Population Growth Growth Rate
2020493,334-3,304-0.67%
2019496,638-3,304-0.66%
2018499,942-3,304-0.66%
2017503,246-3-0.00%
2016503,2491,9030.38%
2015501,3462,5430.51%
2014498,8034,5600.92%
2013494,2434,1720.85%
2012490,0712,6480.54%
2011487,4232,6470.55%
2010484,77696,55424.87%
1990388,22288,54129.55%
1980299,68194,79646.27%
1970204,88557,51039.02%
1960147,37543,97042.52%
1950103,40534,35349.75%
194069,0526,83010.98%
193062,22210,13219.45%
192052,0903,6967.64%
191048,3949,91425.76%
190038,4805,75917.60%
189032,7216,79526.21%
188025,9266,10730.81%
187019,8197,95267.01%
186011,86711,3072019.11%
18505600.00%
2020 Growth Rate
-0.67%
County Website
County Seat

Sonoma County, California Population Growth

Population by Race

Race Population Percentage
White375,51974.91%
Some Other Race63,42212.65%
Two or More Races27,8395.55%
Asian20,0874.01%
Black or African American7,9601.59%
American Indian and Alaska Native4,8540.97%
Native Hawaiian and Other Pacific Islander1,6360.33%

Sonoma County, California Population Pyramid 2020

Sonoma County, California Median Age

41.7


Total

40


Male

43.5


Female

Sonoma County, California Adults

There are 400,499 adults, (91,097 of whom are seniors) in Sonoma County, California.

Sonoma County, California Age Dependency

62

Age Dependency Ratio

29.4

Old Age Dependency Ratio

32.6

Child Dependency Ratio

Sonoma County, California Sex Ratio

Female

256,121

51.09%

Male

245,196

48.91%

Sonoma County, California Households and Families

Sonoma County, California Renter vs Owner Occupied by Household Type

Sonoma County, California Household Types

Type Owner Renter
Married73.8%26.2%
All60.8%39.2%
Non Family50.3%49.7%
Female46.5%53.5%
Male42%58%

60.8%

Rate of Home Ownership

Type Count Average Size Owned
All189,3392.660.8
Married91,2173.2473.8
Non Family68,9241.3850.3
Female19,0713.4446.5
Male10,1273.6242

3.16

Average Family Size

2.6

Average Household Size

7.4%

Unmarried (Opposite Sex)

0.6%

Unmarried (Same Sex)

Sonoma County, California Education

Education Attained Count Percentage
Less Than 9th Grade22,1496.19%
9th to 12th Grade20,6825.78%
High School Graduate67,18318.77%
Some College88,95224.85%
Associates Degree34,1299.53%
Bachelors Degree78,69221.98%
Graduate Degree46,18112.90%

Sonoma County, California Educational Attainment by Race

Name Total High School Bachelors
White252,166240,625103,941
Hispanic73,74145,7929,399
Other Race35,52319,1812,801
Asian15,13113,2316,514
Multiple Races12,98711,7333,699
Black5,3974,9011,536
Native American3,3222,532253
Islander1,3311,212332

The highest rate of high school graduation is among white people with a rate of 95.42%.

The highest rate of bachelors degrees is among asian people with a rate of 43.05%.

Name Average Male Female
Overall$41,245$47,722$35,019
Less Than High School$26,188$30,104$19,317
High School Grad$32,038$39,732$25,593
Some College$40,793$49,388$33,557
Bachelors Degree$54,544$64,822$46,314
Graduate Degree$69,793$85,763$62,469

$41,245

Average Earnings

$47,722

Average Male

$35,019

Average Female

Sonoma County, California Language

Sonoma County, California Language by Age

Sonoma County, California Language

74.50% of Sonoma County, California residents speak only English, while 25.50% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 19.81% of the population.

Sonoma County, California Poverty

Sonoma County, California Poverty by Race

Name Total In Poverty Poverty Rate
White314,53525,9268.24%
Hispanic130,75918,82614.40%
Other62,42211,03017.67%
Multiple27,4013,36412.28%
Asian19,8221,8489.32%
Black7,6491,38818.15%
Native4,7523607.58%
Islander1,61919211.86%

10.26%

Overall Poverty Rate

9.42%

Male Poverty Rate

11.05%

Female Poverty Rate

Poverty in Sonoma County, California

The race most likely to be in poverty in Sonoma County, California is Black, with 18.15% below the poverty level.

The race least likely to be in poverty in Sonoma County, California is Native, with 7.58% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.97%. Among those working part-time, it was 12.75%, and for those that did not work, the poverty rate was 16.74%.

Name Poverty
Less Than High School17.56%
High School11.11%
Some College8.30%
Bachelors or Greater5.17%
Name Poverty
Male Unemployed25.29%
Female Unemployed21.31%
Female Employed6.98%
Male Employed4.35%

Sonoma County, California Income

Sonoma County, California Income by Household Type

Name Median Mean
Households$76,753$102,483
Families$91,937$119,912
Married Families$106,699$135,748
Non Families$47,768$66,086

Sonoma County, California Marital Status

Sonoma County, California Marital Status

Marriage Rates

47.8%

Overall Marriage Rate

49.4%

Male Marriage Rate

46.4%

Female Marriage Rate

Sonoma County, California Married by Age and Sex

Sonoma County, California Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 35-44.

Sonoma County, California Marital Status by Race

Sonoma County, California Veterans

26,477

Number of Veterans

24,865

Male Veterans

1,612

Female Veterans

War Veterans
Vietnam11,163
First Gulf War3,544
Second Gulf War3,469
Korea2,591
World War II1,652
Age Group Veterans
65 to 748,732
75+7,353
35 to 544,322
55 to 644,237
18 to 341,833
Name Veterans % of Total
White23,8707.66%
Hispanic2,0152.26%
2 or More7874.90%
Other6301.47%
Asian5703.34%
Black4196.63%
Indian1924.91%
Hawaiian90.60%

$Sonoma County, California Veterans by Education

6.26%

Veteran Poverty Rate

28.51%

Veteran Disability Rate

Sonoma County, California Employment Status

65%

Labor Force Participation

61.5%

Employment Rate

5.1%

Unemployment Rate

Sonoma County, California Place of Birth

Origin of Non-Citizens

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

Origin of Naturalized Citizens

61.46%

Born in California

83.46%

Native Born

16.54%

Foreign Born

9.47%

Non Citizen

Place of Birth

83.46% of Sonoma County, California residents were born in the United States, with 61.46% having been born in California. 9.47% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

  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