Walnut, California Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Walnut, California is 27,857 as of the 2023 American Community Survey, making it the 281st-largest city in California. The median household income is $133,762, the median home value is $972,500, and the median age is 46.4.
The population has declined 6.7% since 2010 (29,203 → 27,250).
27,857
Population
3099
People / sq mi
$133,762
Median Income
$972,500
Median Home Value
Walnut covers 9.0 sq mi of land at 3099 people per square mile.
About Walnut, CA
Walnut is a city in California with a population of 27,857. It ranks #281 among cities in California by population. The median age is 46.4, older than the national median. The population is 49.6% male and 50.4% female.
The median household income in Walnut is $133,762, above the US median of $74,580. 7.1% of residents live below the federal poverty level. Home values sit at a median of $972,500, with monthly rent averaging $3,120. The homeownership rate of 82.7% is higher than the national rate of 64.8%.
Educational attainment in Walnut reflects 55.3% of adults 25 and older holding a bachelor's degree or higher, above the national average of 34.3%. Roughly 18.5% of workers primarily work from home, noticeably above the national work-from-home rate of 14.2%. The average commute is 34.5 minutes each way.
Walnut city Population History (2010-2024)
The city of Walnut city had a population of 29,203 in 2010 and 27,250 in 2024, a -6.7% growth over 14 years. The peak was 30,015 in 2017. Average annual growth rate: -0.48%.
27,250
Population (2024)
29,203
Population (2010)
30,015
Peak (2017)
-0.48%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 29,203 |
| 2011 | 29,471 |
| 2012 | 29,842 |
| 2013 | 29,919 |
| 2014 | 29,940 |
| 2015 | 29,990 |
| 2016 | 29,925 |
| 2017 | 30,015 |
| 2018 | 29,910 |
| 2019 | 29,685 |
| 2020 | 28,350 |
| 2021 | 27,775 |
| 2022 | 27,445 |
| 2023 | 27,284 |
| 2024 | 27,250 |
Race & Ethnicity
| White | 12.7% |
| Black or African American | 2.5% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.5% |
| Two or More Races | 0.4% |
Economy & Income
$133,762
Median Household Income
$51,555
Per Capita Income
7.1%
Poverty Rate
2.1%
Unemployment Rate
Housing
$972,500
Median Home Value
$3,120
Median Rent
82.7%
Owner-Occupied
Education
93.9%
High School+
55.3%
Bachelor's+
Commute
2.4%
Drive Alone
68.0%
Public Transit
18.5%
Work From Home
34.5 min
Avg Commute
Community Profile
6.7%
Foreign Born
33.3%
Non-English at Home
2.7%
Veterans
7.5%
With Disability
95.2%
Health Insurance
97.6%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 25.0% |
| Finance, Insurance & Real Estate | 13.7% |
| Information | 10.0% |
| Manufacturing | 7.6% |
| Education, Health Care & Social Services | 6.7% |
| Retail Trade | 6.0% |
| Public Administration | 4.7% |
| Arts, Entertainment & Food Services | 3.9% |
| Construction | 3.2% |
| Transportation & Warehousing | 1.5% |
| Agriculture & Mining | 0.5% |
Largest cities in California
Largest counties in California
Part of California
Metro areas in California
City rankings
Frequently Asked Questions
Walnut, California has a population of 27,857 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 281st-largest city in California.
The median household income in Walnut, California is $133,762, with 7.1% of residents living below the federal poverty level.
The median home value in Walnut, California is $972,500, with median monthly rent at $3,120 and a homeownership rate of 82.7%.
The median age in Walnut, California is 46.4 years. The population is 49.6% male and 50.4% female.
The population has declined 6.7% since 2010 (29,203 → 27,250).
More from California
Population 3,857,897
Population 1,385,061
Population 990,054
Population 836,321
Population 543,615
Full rankings of California cities by population
Statewide data for California
Population, race, income, age, and trends across California
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.