| | Monterey Park, CA | Pico Rivera, CA | United States |
| Population | 61,153 | 62,383 | 329,725,481 |
| Female Population | 52.1% | 51.3% | 50.5% |
| Male Population | 47.9% | 48.7% | 49.5% |
| Median Age | 43.8 | 39 | 38.4 |
| space3 | | | |
| Population - 2010 | 60,260 | 62,955 | 309,327,143 |
| Population - 2000 | 60,051 | 63,428 | 285,036,114 |
| Population - 1990 | 60,738 | 59,177 | 251,960,433 |
| Pop. 2000 to Now | -1.2% | -3.3% | 15.6% |
| Pop. 1990 to Now | -2.3% | 3.7% | 30.8% |
| space4 | | | |
| Population Density | 7,969.9 | 7,520.6 | 93.4 |
| Land Area | 7.7 | 8.3 | 3,531,905.4 |
| Water Area | 0.1 | 0.6 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Monterey Park, CA | Pico Rivera, CA | United States |
| Age 0 to 4 | 4.3% | 4.3% | 5.9% |
| Age 5 to 9 | 5.1% | 5.5% | 6.1% |
| Age 10 to 14 | 4.7% | 6.6% | 6.6% |
| Age 15 to 17 | 3.3% | 4.9% | 3.9% |
| Age 18 to 20 | 3.0% | 4.4% | 4.0% |
| Age 21 to 24 | 4.7% | 5.9% | 5.2% |
| Age 25 to 34 | 13.8% | 13.3% | 13.8% |
| Age 35 to 44 | 12.6% | 13.6% | 12.9% |
| Age 45 to 54 | 13.0% | 13.5% | 12.6% |
| Age 55 to 59 | 6.4% | 7.1% | 6.7% |
| Age 60 to 64 | 7.4% | 5.4% | 6.3% |
| Age 65 to 74 | 10.0% | 8.1% | 9.6% |
| Age 75 to 84 | 7.2% | 4.9% | 4.5% |
| Age 85 and over | 4.5% | 2.5% | 1.9% |
| space1 | | | |
| Race | | | |
| | Monterey Park, CA | Pico Rivera, CA | United States |
| White | 5.6% | 4.7% | 59.4% |
| Black | 0.8% | 0.9% | 12.2% |
| Asian | 64.7% | 3.9% | 5.6% |
| Native American | 0.1% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.3% | 0.1% | 0.2% |
| Other | 0.2% | 0.2% | 0.4% |
| Two or More Races | 1.3% | 0.2% | 3.2% |
| Hispanic | 26.9% | 89.9% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Monterey Park, CA | Pico Rivera, CA | United States |
| Married Population | 51.5% | 44.9% | 49.8% |
| Currently Married | 50.5% | 43.1% | 48.0% |
| Married but Separated | 1.0% | 1.8% | 1.8% |
| Single Population | 48.5% | 55.1% | 50.2% |
| Never Married | 34.0% | 41.6% | 33.8% |
| Divorced | 6.9% | 8.0% | 10.8% |
| Widowed | 7.7% | 5.5% | 5.6% |
| space5 | | | |
| Household Size | 3.00 | 3.65 | 2.60 |
| Households | 20,318 | 16,996 | 124,010,992 |
| Family Households | 15,306 | 13,535 | 80,755,759 |
| Married couple, w/children | 25.0% | 32.8% | 30.5% |
| Married couple, no children | 43.4% | 34.4% | 42.9% |
| Non Family Households | 5,012 | 3,461 | 43,255,233 |
| Single householder, w/children | 11.2% | 15.6% | 15.8% |
| Single householder, no children | 20.4% | 17.3% | 10.8% |