Demographics & People — Walnut, California
Population Overview
| Population (Census) | 27,857 |
| Estimated 2026 | ~27,000 |
| Median Age | 46.8 |
| Total Households | 8,534 |
| Family Households | 7,433 |
| Average Household Size | 3.26 |
| Diversity Index | 0.5032 (moderately diverse) |
Race & Ethnicity
| White | 3,533 |
| Black or African American | 701 |
| Asian | 18,870 |
| Hispanic or Latino | 5,091 |
Heritage & Ancestry
| Group | Count |
| Other groups | 21,840 |
| Hispanic: Hispanic or Latino | 5,232 |
| Hispanic: Mexican | 4,389 |
| Unclassified or not reported | 3,982 |
| German | 647 |
| English | 560 |
| Hispanic: Other Hispanic or Latino | 395 |
| American | 381 |
| Italian | 368 |
| Hispanic: Central American | 269 |
Language
| English Only | 8,899 |
| Spanish | 2,316 |
| Population 5+ | 26,722 |
Veterans
| Veterans | 698 |
| Population 18+ | 22,884 |
Commuting
| Mean Commute Time | 33.5 minutes |
| Work from Home | 19.7% |
| Commuter Profile | N/A |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Walnut, California.