| | Trinity, NC | Middleburg, FL | United States |
| Population | 6,981 | 12,127 | 329,725,481 |
| Female Population | 52.1% | 44.9% | 50.5% |
| Male Population | 47.9% | 55.1% | 49.5% |
| Median Age | 44 | 43.3 | 38.4 |
| space3 | | | |
| Population - 2010 | 6,600 | 12,888 | 309,327,143 |
| Population - 2000 | 6,690 | 10,338 | 285,036,114 |
| Population - 1990 | 5,469 | 6,223 | 251,960,433 |
| Pop. 2000 to Now | -0.8% | 41.0% | 15.6% |
| Pop. 1990 to Now | 21.4% | 134.3% | 30.8% |
| space4 | | | |
| Population Density | 413.7 | 617.8 | 93.4 |
| Land Area | 16.9 | 19.6 | 3,531,905.4 |
| Water Area | 0.2 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Trinity, NC | Middleburg, FL | United States |
| Age 0 to 4 | 5.3% | 5.6% | 5.9% |
| Age 5 to 9 | 8.4% | 6.4% | 6.1% |
| Age 10 to 14 | 6.1% | 5.3% | 6.6% |
| Age 15 to 17 | 3.8% | 4.6% | 3.9% |
| Age 18 to 20 | 2.2% | 2.7% | 4.0% |
| Age 21 to 24 | 3.4% | 4.7% | 5.2% |
| Age 25 to 34 | 12.0% | 13.2% | 13.8% |
| Age 35 to 44 | 9.8% | 9.8% | 12.9% |
| Age 45 to 54 | 10.7% | 17.5% | 12.6% |
| Age 55 to 59 | 7.9% | 8.8% | 6.7% |
| Age 60 to 64 | 6.9% | 7.3% | 6.3% |
| Age 65 to 74 | 16.9% | 9.2% | 9.6% |
| Age 75 to 84 | 5.0% | 3.6% | 4.5% |
| Age 85 and over | 1.7% | 1.2% | 1.9% |
| space1 | | | |
| Race | | | |
| | Trinity, NC | Middleburg, FL | United States |
| White | 90.1% | 86.8% | 59.4% |
| Black | 3.6% | 3.8% | 12.2% |
| Asian | 2.6% | 0.3% | 5.6% |
| Native American | 0.1% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.1% | 0.4% |
| Two or More Races | 1.4% | 3.2% | 3.2% |
| Hispanic | 2.2% | 5.7% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Trinity, NC | Middleburg, FL | United States |
| Married Population | 55.2% | 57.4% | 49.8% |
| Currently Married | 53.9% | 55.9% | 48.0% |
| Married but Separated | 1.3% | 1.4% | 1.8% |
| Single Population | 44.8% | 42.6% | 50.2% |
| Never Married | 27.2% | 22.7% | 33.8% |
| Divorced | 11.3% | 15.7% | 10.8% |
| Widowed | 6.3% | 4.2% | 5.6% |
| space5 | | | |
| Household Size | 2.60 | 2.51 | 2.60 |
| Households | 2,685 | 4,824 | 124,010,992 |
| Family Households | 1,871 | 3,457 | 80,755,759 |
| Married couple, w/children | 26.7% | 31.6% | 30.5% |
| Married couple, no children | 51.0% | 45.8% | 42.9% |
| Non Family Households | 814 | 1,367 | 43,255,233 |
| Single householder, w/children | 15.0% | 11.7% | 15.8% |
| Single householder, no children | 7.3% | 10.8% | 10.8% |