| | Topsail Beach, NC | North Topsail Beach, NC | United States |
| Population | 413 | 789 | 329,725,481 |
| Female Population | 52.3% | 47.9% | 50.5% |
| Male Population | 47.7% | 52.1% | 49.5% |
| Median Age | 60.7 | 59 | 38.4 |
| space3 | | | |
| Population - 2010 | 369 | 745 | 309,327,143 |
| Population - 2000 | 471 | 843 | 285,036,114 |
| Population - 1990 | 346 | 1,141 | 251,960,433 |
| Pop. 2000 to Now | -7.0% | -11.9% | 15.6% |
| Pop. 1990 to Now | 26.6% | -34.9% | 30.8% |
| space4 | | | |
| Population Density | 94.1 | 127.0 | 93.4 |
| Land Area | 4.4 | 6.2 | 3,531,905.4 |
| Water Area | 1.5 | 4.2 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Topsail Beach, NC | North Topsail Beach, NC | United States |
| Age 0 to 4 | 1.5% | 0.3% | 5.9% |
| Age 5 to 9 | 6.5% | 2.4% | 6.1% |
| Age 10 to 14 | 1.5% | 2.0% | 6.6% |
| Age 15 to 17 | 3.1% | 1.4% | 3.9% |
| Age 18 to 20 | 0.0% | 3.7% | 4.0% |
| Age 21 to 24 | 0.5% | 2.0% | 5.2% |
| Age 25 to 34 | 7.3% | 3.8% | 13.8% |
| Age 35 to 44 | 7.0% | 8.4% | 12.9% |
| Age 45 to 54 | 12.1% | 17.2% | 12.6% |
| Age 55 to 59 | 9.2% | 10.8% | 6.7% |
| Age 60 to 64 | 10.9% | 13.8% | 6.3% |
| Age 65 to 74 | 30.5% | 25.1% | 9.6% |
| Age 75 to 84 | 5.6% | 6.2% | 4.5% |
| Age 85 and over | 4.4% | 2.9% | 1.9% |
| space1 | | | |
| Race | | | |
| | Topsail Beach, NC | North Topsail Beach, NC | United States |
| White | 100.0% | 94.3% | 59.4% |
| Black | 0.0% | 0.0% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.0% | 3.7% | 3.2% |
| Hispanic | 0.0% | 2.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Topsail Beach, NC | North Topsail Beach, NC | United States |
| Married Population | 71.9% | 62.4% | 49.8% |
| Currently Married | 71.7% | 58.8% | 48.0% |
| Married but Separated | 0.3% | 3.6% | 1.8% |
| Single Population | 28.1% | 37.6% | 50.2% |
| Never Married | 14.4% | 13.4% | 33.8% |
| Divorced | 5.6% | 14.2% | 10.8% |
| Widowed | 8.0% | 10.0% | 5.6% |
| space5 | | | |
| Household Size | 2.08 | 1.86 | 2.60 |
| Households | 199 | 424 | 124,010,992 |
| Family Households | 133 | 241 | 80,755,759 |
| Married couple, w/children | 17.3% | 5.0% | 30.5% |
| Married couple, no children | 77.4% | 75.9% | 42.9% |
| Non Family Households | 66 | 183 | 43,255,233 |
| Single householder, w/children | 0.8% | 10.4% | 15.8% |
| Single householder, no children | 4.5% | 8.7% | 10.8% |