Walnut Creek

70,127

Total Population in 2020

In 2020, Walnut Creek was home to 70,127 people. Residents were a majority working age, while those 65 and older were a larger segment of the community than those under 18. The population was a majority white, with more women than men.

Most Populous Demographics

Category	Demographic	Total	Percentage
Age	18-64	37,852	54%
Sex	Female	37,712	54%
Race and Hispanic or Latino	White (Not Hispanic or Latino)	44,922	64%

Age

47.5

Median Age

In 2020, Walnut Creek's population was a majority working-age adults, while those 65 and older were a considerably larger share of the community than those under age 18. Looking at 10-year age ranges, 30-39 was the largest group.

Population by Age Range

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Population by Age Group

11,889

Under 18

37,852

18-64

20,386

65 and over

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Table: Population by Age Range

Age Range	Population in Walnut Creek
Age Range	Total	Percentage
0-9	6,595	9%
10-19	6,366	9%
20-29	6,363	9%
30-39	9,594	14%
40-49	8,162	12%
50-59	8,341	12%
60-69	8,690	12%
70-79	8,741	12%
80+	7,275	10%

Table: Population by Age Group

Age Group	Population in Walnut Creek
Age Group	Total	Percentage
Under 18	11,889	17%
18-64	37,852	54%
65 and over	20,386	29%

* 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 Walnut Creek. Females 70-79 were the largest group by age, followed by females 60-69 and females 30-39. The biggest gap was in the 80-and-older age group, where females were the larger share.

Population by Sex

32,415

Male

37,712

Female

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Population by Sex and Age

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Male

Female

Table: Population by Sex

Sex	Walnut Creek
Sex	Total	Percentage
Male	32,415	46%
Female	37,712	54%

Table: Population by Sex and Age

Sex and Age	Walnut Creek
Sex and Age	Total	Percentage
Male	32,415	46%
Male: 0-9	3,379	5%
Male: 10-19	3,337	5%
Male: 20-29	3,074	4%
Male: 30-39	4,754	7%
Male: 40-49	3,947	6%
Male: 50-59	4,020	6%
Male: 60-69	3,788	5%
Male: 70-79	3,488	5%
Male: 80+	2,628	4%
Female	37,712	54%
Female: 0-9	3,216	5%
Female: 10-19	3,029	4%
Female: 20-29	3,289	5%
Female: 30-39	4,840	7%
Female: 40-49	4,215	6%
Female: 50-59	4,321	6%
Female: 60-69	4,902	7%
Female: 70-79	5,253	7%
Female: 80+	4,647	7%

* 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, Walnut Creek had a majority white population. Asian residents also made up a notable segment of the community, while Hispanic and other/multiracial 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 Walnut Creek
Race and Hispanic or Latino	Total	Percentage
White	44,922	64%
Black or African American	1,477	2%
American Indian / Alaska Native	81	<1%
Asian	11,538	16%
Native Hawaiian / Pacific Islander	103	<1%
Other / Multi-racial	4,702	7%
Hispanic or Latino (any race)	7,304	10%

* 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.