| | Bridgeport, CA | Mammoth Lakes, CA | United States |
| Population | 424 | 7,321 | 329,725,481 |
| Female Population | 44.3% | 50.1% | 50.5% |
| Male Population | 55.7% | 49.9% | 49.5% |
| Median Age | 57.9 | 37.9 | 38.4 |
| space3 | | | |
| Population - 2010 | 402 | 8,230 | 309,327,143 |
| Population - 2000 | 576 | 7,093 | 285,036,114 |
| Population - 1990 | 592 | 4,785 | 251,960,433 |
| Pop. 2000 to Now | 12.9% | 17.3% | 15.6% |
| Pop. 1990 to Now | 9.8% | 73.8% | 30.8% |
| space4 | | | |
| Population Density | 19.5 | 294.4 | 93.4 |
| Land Area | 21.7 | 24.9 | 3,531,905.4 |
| Water Area | 0.0 | 0.4 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Bridgeport, CA | Mammoth Lakes, CA | United States |
| Age 0 to 4 | 1.2% | 3.4% | 5.9% |
| Age 5 to 9 | 3.8% | 7.1% | 6.1% |
| Age 10 to 14 | 0.0% | 10.8% | 6.6% |
| Age 15 to 17 | 0.0% | 3.3% | 3.9% |
| Age 18 to 20 | 2.4% | 1.7% | 4.0% |
| Age 21 to 24 | 11.3% | 3.9% | 5.2% |
| Age 25 to 34 | 4.0% | 14.9% | 13.8% |
| Age 35 to 44 | 3.8% | 17.2% | 12.9% |
| Age 45 to 54 | 1.9% | 15.2% | 12.6% |
| Age 55 to 59 | 23.1% | 7.3% | 6.7% |
| Age 60 to 64 | 35.6% | 6.5% | 6.3% |
| Age 65 to 74 | 8.3% | 5.3% | 9.6% |
| Age 75 to 84 | 4.0% | 3.4% | 4.5% |
| Age 85 and over | 0.7% | 0.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Bridgeport, CA | Mammoth Lakes, CA | United States |
| White | 37.5% | 61.0% | 59.4% |
| Black | 0.7% | 0.0% | 12.2% |
| Asian | 22.2% | 5.6% | 5.6% |
| Native American | 3.5% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 2.0% | 0.4% |
| Two or More Races | 1.2% | 0.3% | 3.2% |
| Hispanic | 34.9% | 31.1% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Bridgeport, CA | Mammoth Lakes, CA | United States |
| Married Population | 67.0% | 50.2% | 49.8% |
| Currently Married | 67.0% | 46.5% | 48.0% |
| Married but Separated | 0.0% | 3.6% | 1.8% |
| Single Population | 33.0% | 49.8% | 50.2% |
| Never Married | 25.8% | 36.0% | 33.8% |
| Divorced | 0.0% | 9.8% | 10.8% |
| Widowed | 7.2% | 4.0% | 5.6% |
| space5 | | | |
| Household Size | 2.26 | 2.34 | 2.60 |
| Households | 170 | 3,072 | 124,010,992 |
| Family Households | 114 | 1,490 | 80,755,759 |
| Married couple, w/children | 7.9% | 37.0% | 30.5% |
| Married couple, no children | 89.5% | 48.8% | 42.9% |
| Non Family Households | 56 | 1,582 | 43,255,233 |
| Single householder, w/children | 0.0% | 5.6% | 15.8% |
| Single householder, no children | 2.6% | 8.6% | 10.8% |