91340 can be classified socioeconomically as Lower Middle Class class compared to other ZIP Codes in California based on Median Household Income and Average Adjusted Gross Income. The majority race/ethnicity residing in 91340 is Hispanic. The majority race/ethnicity attending public schools in 91340 is Hispanic. The current unemployment level in 91340 is 5.2%.
| Population | 34,822 |
| Population Growth Rate | 0.00% |
| Population Density | 10,000 People per Square Mile |
| Total Households | 8,453 |
| Percentage High Income Households | 1.6% |
| Median Household Income (2021) | $67,638 |
| Average Adjusted Gross Income (2021) | $349,190 |
| Current Unemployment Rate (May 2026) | 5.2% |
| Sales Tax Rate (2025) | 10.5% |
| Majority Race/Ethnicty | Hispanic - 63.17% |
| Public School Majority Race/Ethnicty | Hispanic - 96.60% |
91340 Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
| White | 17,460 | 33.3% |
| Black | 649 | 1.24% |
| Hispanic | 33,120 | 63.17% |
| Asian | 839 | 1.6% |
| Native American | 364 | 0.69% |
| Hawaiian/Pac. Islander | 0 | 0% |
91340 Public School Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
| White | 170 | 1.6% |
| Black | 88 | 0.83% |
| Hispanic | 10,283 | 96.9% |
| Asian | 55 | 0.52% |
| Native American | 12 | 0.11% |
| Hawaiian/Pac. Islander | 4 | 0.04% |
91340 Educational Attainment Levels
| Highest Education Level Attained | Total | Percentage |
| Less Than 1 Year of College | 637 | 5.41% |
| Bachelor Degree | 1,434 | 12.18% |
| High School Diploma | 4,532 | 38.49% |
| No High School Diploma | 1,101 | 9.35% |
| GED or Alternate | 392 | 3.33% |
| 1 or More Years of College | 2,128 | 18.08% |
| Associates Degree | 1,064 | 9.04% |
| Masters Degree | 379 | 3.22% |
| Professional Degree | 86 | 0.73% |
| Doctorate Degree | 20 | 0.17% |