| | Georgetown, CA | St. Augustine, FL | United States |
| Population | 3,018 | 13,994 | 329,725,481 |
| Female Population | 44.8% | 56.3% | 50.5% |
| Male Population | 55.2% | 43.7% | 49.5% |
| Median Age | 57.9 | 46.2 | 38.4 |
| space3 | | | |
| Population - 2010 | 2,378 | 13,062 | 309,327,143 |
| Population - 2000 | 962 | 11,592 | 285,036,114 |
| Population - 1990 | 1,816 | 11,692 | 251,960,433 |
| Pop. 2000 to Now | 160.0% | 42.5% | 15.6% |
| Pop. 1990 to Now | 37.7% | 41.3% | 30.8% |
| space4 | | | |
| Population Density | 199.5 | 1,480.7 | 93.4 |
| Land Area | 15.1 | 9.5 | 3,531,905.4 |
| Water Area | 0.0 | 3.3 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Georgetown, CA | St. Augustine, FL | United States |
| Age 0 to 4 | 4.9% | 1.3% | 5.9% |
| Age 5 to 9 | 5.0% | 3.5% | 6.1% |
| Age 10 to 14 | 4.4% | 2.1% | 6.6% |
| Age 15 to 17 | 3.4% | 1.9% | 3.9% |
| Age 18 to 20 | 3.0% | 11.0% | 4.0% |
| Age 21 to 24 | 3.0% | 4.7% | 5.2% |
| Age 25 to 34 | 4.7% | 13.8% | 13.8% |
| Age 35 to 44 | 11.8% | 9.9% | 12.9% |
| Age 45 to 54 | 7.4% | 10.3% | 12.6% |
| Age 55 to 59 | 4.8% | 7.1% | 6.7% |
| Age 60 to 64 | 11.7% | 7.7% | 6.3% |
| Age 65 to 74 | 19.1% | 16.5% | 9.6% |
| Age 75 to 84 | 11.1% | 5.9% | 4.5% |
| Age 85 and over | 5.7% | 4.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | Georgetown, CA | St. Augustine, FL | United States |
| White | 78.0% | 81.2% | 59.4% |
| Black | 0.3% | 6.3% | 12.2% |
| Asian | 2.6% | 1.4% | 5.6% |
| Native American | 0.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.1% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 2.3% | 3.5% | 3.2% |
| Hispanic | 16.8% | 7.5% | 18.4% |
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| Marriage & Family | | | |
| | Georgetown, CA | St. Augustine, FL | United States |
| Married Population | 57.0% | 37.6% | 49.8% |
| Currently Married | 56.4% | 36.2% | 48.0% |
| Married but Separated | 0.6% | 1.4% | 1.8% |
| Single Population | 43.0% | 62.4% | 50.2% |
| Never Married | 21.9% | 42.2% | 33.8% |
| Divorced | 7.6% | 12.5% | 10.8% |
| Widowed | 13.5% | 7.6% | 5.6% |
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| Household Size | 2.16 | 2.30 | 2.60 |
| Households | 1,334 | 5,538 | 124,010,992 |
| Family Households | 753 | 2,726 | 80,755,759 |
| Married couple, w/children | 18.2% | 13.0% | 30.5% |
| Married couple, no children | 70.7% | 65.6% | 42.9% |
| Non Family Households | 581 | 2,812 | 43,255,233 |
| Single householder, w/children | 4.3% | 9.0% | 15.8% |
| Single householder, no children | 6.9% | 12.4% | 10.8% |