| | Lomita, CA | Hollister, CA | United States |
| Population | 20,884 | 41,077 | 329,725,481 |
| Female Population | 51.8% | 49.8% | 50.5% |
| Male Population | 48.2% | 50.2% | 49.5% |
| Median Age | 39.5 | 33.3 | 38.4 |
| space3 | | | |
| Population - 2010 | 20,220 | 35,415 | 309,327,143 |
| Population - 2000 | 20,046 | 34,413 | 285,036,114 |
| Population - 1990 | 19,382 | 19,212 | 251,960,433 |
| Pop. 2000 to Now | -1.0% | 21.5% | 15.6% |
| Pop. 1990 to Now | 2.4% | 117.6% | 30.8% |
| space4 | | | |
| Population Density | 10,922.6 | 5,603.2 | 93.4 |
| Land Area | 1.9 | 7.3 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Lomita, CA | Hollister, CA | United States |
| Age 0 to 4 | 7.6% | 7.2% | 5.9% |
| Age 5 to 9 | 5.1% | 7.0% | 6.1% |
| Age 10 to 14 | 4.5% | 9.3% | 6.6% |
| Age 15 to 17 | 3.3% | 5.0% | 3.9% |
| Age 18 to 20 | 2.7% | 4.8% | 4.0% |
| Age 21 to 24 | 4.2% | 5.1% | 5.2% |
| Age 25 to 34 | 16.7% | 14.4% | 13.8% |
| Age 35 to 44 | 10.2% | 14.9% | 12.9% |
| Age 45 to 54 | 13.1% | 12.0% | 12.6% |
| Age 55 to 59 | 7.7% | 6.4% | 6.7% |
| Age 60 to 64 | 6.8% | 4.2% | 6.3% |
| Age 65 to 74 | 12.7% | 6.0% | 9.6% |
| Age 75 to 84 | 3.3% | 2.5% | 4.5% |
| Age 85 and over | 2.0% | 1.4% | 1.9% |
| space1 | | | |
| Race | | | |
| | Lomita, CA | Hollister, CA | United States |
| White | 35.9% | 22.8% | 59.4% |
| Black | 5.7% | 0.7% | 12.2% |
| Asian | 17.2% | 2.3% | 5.6% |
| Native American | 0.3% | 0.3% | 0.6% |
| Hawaiian, Pacific Islander | 0.2% | 0.2% | 0.2% |
| Other | 0.4% | 0.1% | 0.4% |
| Two or More Races | 5.1% | 1.9% | 3.2% |
| Hispanic | 35.2% | 71.6% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Lomita, CA | Hollister, CA | United States |
| Married Population | 49.8% | 49.0% | 49.8% |
| Currently Married | 48.8% | 47.3% | 48.0% |
| Married but Separated | 1.0% | 1.6% | 1.8% |
| Single Population | 50.2% | 51.0% | 50.2% |
| Never Married | 34.5% | 36.8% | 33.8% |
| Divorced | 12.0% | 10.0% | 10.8% |
| Widowed | 3.7% | 4.3% | 5.6% |
| space5 | | | |
| Household Size | 2.64 | 3.49 | 2.60 |
| Households | 7,861 | 11,736 | 124,010,992 |
| Family Households | 5,301 | 9,533 | 80,755,759 |
| Married couple, w/children | 27.1% | 40.5% | 30.5% |
| Married couple, no children | 44.1% | 29.7% | 42.9% |
| Non Family Households | 2,560 | 2,203 | 43,255,233 |
| Single householder, w/children | 15.5% | 20.0% | 15.8% |
| Single householder, no children | 13.3% | 9.8% | 10.8% |