Petaluma

59,776

Total Population in 2020

In 2020, Petaluma was home to 59,776 people. Residents were predominantly working age, while those under 18 were a larger segment of the community than those 65 and older. The population was a majority white, with more women than men.

Most Populous Demographics

Category	Demographic	Total	Percentage
Age	18-64	35,608	60%
Sex	Female	30,980	52%
Race and Hispanic or Latino	White (Not Hispanic or Latino)	38,538	64%

Age

43.4

Median Age

In 2020, Petaluma's population was a majority working-age adults, while those under age 18 were a moderately larger share of the community than those 65 and older. Looking at 10-year age ranges, 50-59 was the largest group.

Population by Age Range

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Population by Age Group

12,217

Under 18

35,608

18-64

11,951

65 and over

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Table: Population by Age Range

Age Range	Population in Petaluma
Age Range	Total	Percentage
0-9	6,170	10%
10-19	7,396	12%
20-29	5,971	10%
30-39	7,685	13%
40-49	7,802	13%
50-59	8,541	14%
60-69	8,212	14%
70-79	5,413	9%
80+	2,586	4%

Table: Population by Age Group

Age Group	Population in Petaluma
Age Group	Total	Percentage
Under 18	12,217	20%
18-64	35,608	60%
65 and over	11,951	20%

* For both charts above, the data is collected from the U.S. Census Bureau Decennial Data 2020, Demographic and Housing Characteristics File (DHC), P12 Sex by Age for Selected Age Categories.

Sex and Age

In 2020, females outnumbered males by a significant amount in Petaluma. Females 50-59 were the largest group by age, followed by females 60-69 and males 50-59. The biggest gap was in the 80-and-older age group, where females were the larger share.

Population by Sex

28,796

Male

30,980

Female

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Population by Sex and Age

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Male

Female

Table: Population by Sex

Sex	Petaluma
Sex	Total	Percentage
Male	28,796	48%
Female	30,980	52%

Table: Population by Sex and Age

Sex and Age	Petaluma
Sex and Age	Total	Percentage
Male	28,796	48%
Male: 0-9	3,019	5%
Male: 10-19	3,881	6%
Male: 20-29	3,059	5%
Male: 30-39	3,783	6%
Male: 40-49	3,770	6%
Male: 50-59	4,111	7%
Male: 60-69	3,828	6%
Male: 70-79	2,415	4%
Male: 80+	930	2%
Female	30,980	52%
Female: 0-9	3,151	5%
Female: 10-19	3,515	6%
Female: 20-29	2,912	5%
Female: 30-39	3,902	7%
Female: 40-49	4,032	7%
Female: 50-59	4,430	7%
Female: 60-69	4,384	7%
Female: 70-79	2,998	5%
Female: 80+	1,656	3%

* For both charts above, the data is collected from the U.S. Census Bureau Decennial Data 2020, Demographic and Housing Characteristics File (DHC), P12 Sex by Age for Selected Age Categories.

Race and Hispanic or Latino

64%

White (Not Hispanic or Latino)

In 2020, Petaluma had a majority white population. Hispanic residents also made up a significant segment of the community, while other/multiracial and Asian people were the next largest groups.

Population by Race and Hispanic or Latino

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Table: Population by Race and Hispanic or Latino

Race and Hispanic or Latino	Population in Petaluma
Race and Hispanic or Latino	Total	Percentage
White	38,538	64%
Black or African American	778	1%
American Indian / Alaska Native	179	<1%
Asian	2,809	5%
Native Hawaiian / Pacific Islander	148	<1%
Other / Multi-racial	3,718	6%
Hispanic or Latino (any race)	13,606	23%

* Categorized as Not Hispanic. This means that all the racial groups marked with an asterisk — White, Black or African American, American Indian / Alaska Native, Asian, Native Hawaiian / Pacific Islander, and Other / Multi-racial — do not include individuals who identify as Hispanic or Latino. The "Hispanic or Latino (any race)" category is separate, as Hispanic/Latino is considered an ethnicity rather than a racial category. For the chart above, the data is collected from the U.S. Census Bureau Decennial Data 2020, Demographic and Housing Characteristics File (DHC), P5 Hispanic or Latino Origin by Race.