| | Contra Costa Centre, CA | Bay Point, CA | United States |
| Population | 6,743 | 24,999 | 329,725,481 |
| Female Population | 46.5% | 46.9% | 50.5% |
| Male Population | 53.5% | 53.1% | 49.5% |
| Median Age | 33.6 | 32.3 | 38.4 |
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| Population - 2010 | 5,364 | 21,197 | 309,327,143 |
| Population - 2000 | 4,969 | 21,534 | 285,036,114 |
| Population - 1990 | 3,859 | 17,163 | 251,960,433 |
| Pop. 2000 to Now | 32.8% | 12.9% | 15.6% |
| Pop. 1990 to Now | 71.1% | 41.6% | 30.8% |
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| Population Density | 10,585.6 | 3,875.2 | 93.4 |
| Land Area | 0.6 | 6.5 | 3,531,905.4 |
| Water Area | 0.0 | 1.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Contra Costa Centre, CA | Bay Point, CA | United States |
| Age 0 to 4 | 4.1% | 6.5% | 5.9% |
| Age 5 to 9 | 2.6% | 6.8% | 6.1% |
| Age 10 to 14 | 1.3% | 8.6% | 6.6% |
| Age 15 to 17 | 1.2% | 3.9% | 3.9% |
| Age 18 to 20 | 0.5% | 5.3% | 4.0% |
| Age 21 to 24 | 9.6% | 7.1% | 5.2% |
| Age 25 to 34 | 34.5% | 14.5% | 13.8% |
| Age 35 to 44 | 15.4% | 17.1% | 12.9% |
| Age 45 to 54 | 10.8% | 12.8% | 12.6% |
| Age 55 to 59 | 8.2% | 5.6% | 6.7% |
| Age 60 to 64 | 5.1% | 4.1% | 6.3% |
| Age 65 to 74 | 4.3% | 4.8% | 9.6% |
| Age 75 to 84 | 2.1% | 2.1% | 4.5% |
| Age 85 and over | 0.4% | 0.7% | 1.9% |
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| Race | | | |
| | Contra Costa Centre, CA | Bay Point, CA | United States |
| White | 53.6% | 12.2% | 59.4% |
| Black | 7.3% | 11.4% | 12.2% |
| Asian | 25.6% | 8.7% | 5.6% |
| Native American | 0.0% | 0.2% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.2% | 0.4% |
| Two or More Races | 3.4% | 3.4% | 3.2% |
| Hispanic | 10.0% | 63.8% | 18.4% |
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| Marriage & Family | | | |
| | Contra Costa Centre, CA | Bay Point, CA | United States |
| Married Population | 42.1% | 44.6% | 49.8% |
| Currently Married | 39.5% | 41.2% | 48.0% |
| Married but Separated | 2.6% | 3.4% | 1.8% |
| Single Population | 57.9% | 55.4% | 50.2% |
| Never Married | 46.3% | 44.9% | 33.8% |
| Divorced | 11.3% | 7.5% | 10.8% |
| Widowed | 0.3% | 2.9% | 5.6% |
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| Household Size | 1.85 | 3.81 | 2.60 |
| Households | 3,644 | 6,542 | 124,010,992 |
| Family Households | 1,442 | 5,468 | 80,755,759 |
| Married couple, w/children | 27.3% | 35.6% | 30.5% |
| Married couple, no children | 54.3% | 23.8% | 42.9% |
| Non Family Households | 2,202 | 1,074 | 43,255,233 |
| Single householder, w/children | 2.6% | 21.1% | 15.8% |
| Single householder, no children | 15.7% | 19.5% | 10.8% |