| | Portal, GA | Jackson, GA | United States |
| Population | 541 | 5,435 | 329,725,481 |
| Female Population | 51.9% | 48.6% | 50.5% |
| Male Population | 48.1% | 51.4% | 49.5% |
| Median Age | 49.3 | 33.7 | 38.4 |
| space3 | | | |
| Population - 2010 | 636 | 5,061 | 309,327,143 |
| Population - 2000 | 597 | 3,934 | 285,036,114 |
| Population - 1990 | 522 | 4,076 | 251,960,433 |
| Pop. 2000 to Now | 18.4% | 35.5% | 15.6% |
| Pop. 1990 to Now | 35.4% | 30.8% | 30.8% |
| space4 | | | |
| Population Density | 270.4 | 894.2 | 93.4 |
| Land Area | 2.0 | 6.1 | 3,531,905.4 |
| Water Area | 0.1 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Portal, GA | Jackson, GA | United States |
| Age 0 to 4 | 3.7% | 6.2% | 5.9% |
| Age 5 to 9 | 8.3% | 9.3% | 6.1% |
| Age 10 to 14 | 1.3% | 9.1% | 6.6% |
| Age 15 to 17 | 2.0% | 5.1% | 3.9% |
| Age 18 to 20 | 3.9% | 1.3% | 4.0% |
| Age 21 to 24 | 1.8% | 3.0% | 5.2% |
| Age 25 to 34 | 8.3% | 17.1% | 13.8% |
| Age 35 to 44 | 15.7% | 15.0% | 12.9% |
| Age 45 to 54 | 16.6% | 11.9% | 12.6% |
| Age 55 to 59 | 7.4% | 4.2% | 6.7% |
| Age 60 to 64 | 12.4% | 5.3% | 6.3% |
| Age 65 to 74 | 7.9% | 5.7% | 9.6% |
| Age 75 to 84 | 6.5% | 5.4% | 4.5% |
| Age 85 and over | 4.1% | 1.4% | 1.9% |
| space1 | | | |
| Race | | | |
| | Portal, GA | Jackson, GA | United States |
| White | 73.8% | 49.7% | 59.4% |
| Black | 19.0% | 45.2% | 12.2% |
| Asian | 0.0% | 0.2% | 5.6% |
| Native American | 0.0% | 0.3% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.4% | 0.0% | 0.4% |
| Two or More Races | 5.2% | 1.2% | 3.2% |
| Hispanic | 1.7% | 3.4% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Portal, GA | Jackson, GA | United States |
| Married Population | 50.5% | 33.2% | 49.8% |
| Currently Married | 45.4% | 28.4% | 48.0% |
| Married but Separated | 5.1% | 4.8% | 1.8% |
| Single Population | 49.5% | 66.8% | 50.2% |
| Never Married | 15.6% | 44.0% | 33.8% |
| Divorced | 19.2% | 14.8% | 10.8% |
| Widowed | 14.7% | 8.0% | 5.6% |
| space5 | | | |
| Household Size | 2.50 | 3.04 | 2.60 |
| Households | 216 | 1,654 | 124,010,992 |
| Family Households | 147 | 1,316 | 80,755,759 |
| Married couple, w/children | 23.1% | 15.0% | 30.5% |
| Married couple, no children | 35.4% | 23.0% | 42.9% |
| Non Family Households | 69 | 338 | 43,255,233 |
| Single householder, w/children | 14.3% | 45.1% | 15.8% |
| Single householder, no children | 27.2% | 16.9% | 10.8% |