Demographics & People — Fullerton, California
Population Overview
| Population (Census) | 141,278 |
| Estimated 2026 | ~140,200 |
| Median Age | 36.9 |
| Total Households | 47,484 |
| Family Households | 33,334 |
| Average Household Size | 2.91 |
| Diversity Index | 0.6627 (highly diverse) |
Race & Ethnicity
| White | 60,760 |
| Black or African American | 2,950 |
| Asian | 34,644 |
| Hispanic or Latino | 55,900 |
Heritage & Ancestry
| Group | Count |
| Other groups | 80,569 |
| Hispanic: Hispanic or Latino | 54,090 |
| Hispanic: Mexican | 44,812 |
| Unclassified or not reported | 26,165 |
| German | 9,176 |
| English | 9,049 |
| Irish | 8,248 |
| Italian | 4,658 |
| American | 4,143 |
| Hispanic: Central American | 4,133 |
Language
| English Only | 71,225 |
| Spanish | 33,434 |
| Population 5+ | 132,776 |
Veterans
| Veterans | 4,006 |
| Population 18+ | 110,352 |
Commuting
| Mean Commute Time | 30.5 minutes |
| Work from Home | 14.9% |
| 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 Fullerton, California.