| | Charlestown, RI | Coventry, RI | United States |
| Population | 8,012 | 35,386 | 329,725,481 |
| Female Population | 49.8% | 51.3% | 50.5% |
| Male Population | 50.2% | 48.7% | 49.5% |
| Median Age | 50.5 | 44.6 | 38.4 |
| space3 | | | |
| Population - 2010 | 7,850 | 34,692 | 309,327,143 |
| Population - 2000 | 7,859 | 33,668 | 285,036,114 |
| Population - 1990 | 6,478 | 31,083 | 251,960,433 |
| Pop. 2000 to Now | -0.3% | 3.8% | 15.6% |
| Pop. 1990 to Now | 21.0% | 12.4% | 30.8% |
| space4 | | | |
| Population Density | 219.8 | 599.2 | 93.4 |
| Land Area | 36.4 | 59.1 | 3,531,905.4 |
| Water Area | 22.9 | 3.3 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Charlestown, RI | Coventry, RI | United States |
| Age 0 to 4 | 2.4% | 4.5% | 5.9% |
| Age 5 to 9 | 4.0% | 4.5% | 6.1% |
| Age 10 to 14 | 5.2% | 5.3% | 6.6% |
| Age 15 to 17 | 2.7% | 4.7% | 3.9% |
| Age 18 to 20 | 5.0% | 3.8% | 4.0% |
| Age 21 to 24 | 4.3% | 3.1% | 5.2% |
| Age 25 to 34 | 9.5% | 12.6% | 13.8% |
| Age 35 to 44 | 10.7% | 12.1% | 12.9% |
| Age 45 to 54 | 14.4% | 16.4% | 12.6% |
| Age 55 to 59 | 7.2% | 8.9% | 6.7% |
| Age 60 to 64 | 10.8% | 6.9% | 6.3% |
| Age 65 to 74 | 14.6% | 9.3% | 9.6% |
| Age 75 to 84 | 7.1% | 5.6% | 4.5% |
| Age 85 and over | 2.0% | 2.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | Charlestown, RI | Coventry, RI | United States |
| White | 96.0% | 93.0% | 59.4% |
| Black | 0.0% | 0.1% | 12.2% |
| Asian | 0.0% | 1.1% | 5.6% |
| Native American | 0.4% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.1% | 0.4% |
| Two or More Races | 2.2% | 2.2% | 3.2% |
| Hispanic | 1.4% | 3.5% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Charlestown, RI | Coventry, RI | United States |
| Married Population | 57.6% | 53.3% | 49.8% |
| Currently Married | 56.9% | 52.3% | 48.0% |
| Married but Separated | 0.7% | 1.0% | 1.8% |
| Single Population | 42.4% | 46.7% | 50.2% |
| Never Married | 27.4% | 27.7% | 33.8% |
| Divorced | 10.1% | 12.8% | 10.8% |
| Widowed | 5.0% | 6.2% | 5.6% |
| space5 | | | |
| Household Size | 2.30 | 2.43 | 2.60 |
| Households | 3,459 | 14,389 | 124,010,992 |
| Family Households | 2,447 | 9,835 | 80,755,759 |
| Married couple, w/children | 20.8% | 30.7% | 30.5% |
| Married couple, no children | 61.5% | 47.7% | 42.9% |
| Non Family Households | 1,012 | 4,554 | 43,255,233 |
| Single householder, w/children | 9.5% | 11.1% | 15.8% |
| Single householder, no children | 8.2% | 10.4% | 10.8% |