| | West Warwick, RI | Charlestown, RI | United States |
| Population | 30,823 | 8,012 | 329,725,481 |
| Female Population | 47.7% | 49.8% | 50.5% |
| Male Population | 52.3% | 50.2% | 49.5% |
| Median Age | 41.1 | 50.5 | 38.4 |
| space3 | | | |
| Population - 2010 | 29,434 | 7,850 | 309,327,143 |
| Population - 2000 | 29,581 | 7,859 | 285,036,114 |
| Population - 1990 | 29,268 | 6,478 | 251,960,433 |
| Pop. 2000 to Now | -2.1% | -0.3% | 15.6% |
| Pop. 1990 to Now | -1.0% | 21.0% | 30.8% |
| space4 | | | |
| Population Density | 3,956.7 | 219.8 | 93.4 |
| Land Area | 7.8 | 36.4 | 3,531,905.4 |
| Water Area | 0.2 | 22.9 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | West Warwick, RI | Charlestown, RI | United States |
| Age 0 to 4 | 5.4% | 2.4% | 5.9% |
| Age 5 to 9 | 4.8% | 4.0% | 6.1% |
| Age 10 to 14 | 4.6% | 5.2% | 6.6% |
| Age 15 to 17 | 2.1% | 2.7% | 3.9% |
| Age 18 to 20 | 3.1% | 5.0% | 4.0% |
| Age 21 to 24 | 4.7% | 4.3% | 5.2% |
| Age 25 to 34 | 17.1% | 9.5% | 13.8% |
| Age 35 to 44 | 12.8% | 10.7% | 12.9% |
| Age 45 to 54 | 15.2% | 14.4% | 12.6% |
| Age 55 to 59 | 5.6% | 7.2% | 6.7% |
| Age 60 to 64 | 6.9% | 10.8% | 6.3% |
| Age 65 to 74 | 11.0% | 14.6% | 9.6% |
| Age 75 to 84 | 4.8% | 7.1% | 4.5% |
| Age 85 and over | 1.8% | 2.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | West Warwick, RI | Charlestown, RI | United States |
| White | 83.1% | 96.0% | 59.4% |
| Black | 1.9% | 0.0% | 12.2% |
| Asian | 3.2% | 0.0% | 5.6% |
| Native American | 0.1% | 0.4% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.5% | 0.0% | 0.4% |
| Two or More Races | 2.2% | 2.2% | 3.2% |
| Hispanic | 9.1% | 1.4% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | West Warwick, RI | Charlestown, RI | United States |
| Married Population | 43.5% | 57.6% | 49.8% |
| Currently Married | 42.7% | 56.9% | 48.0% |
| Married but Separated | 0.8% | 0.7% | 1.8% |
| Single Population | 56.5% | 42.4% | 50.2% |
| Never Married | 34.1% | 27.4% | 33.8% |
| Divorced | 17.1% | 10.1% | 10.8% |
| Widowed | 5.3% | 5.0% | 5.6% |
| space5 | | | |
| Household Size | 2.19 | 2.30 | 2.60 |
| Households | 14,030 | 3,459 | 124,010,992 |
| Family Households | 7,789 | 2,447 | 80,755,759 |
| Married couple, w/children | 23.4% | 20.8% | 30.5% |
| Married couple, no children | 45.3% | 61.5% | 42.9% |
| Non Family Households | 6,241 | 1,012 | 43,255,233 |
| Single householder, w/children | 20.8% | 9.5% | 15.8% |
| Single householder, no children | 10.4% | 8.2% | 10.8% |