| | Nitro, WV | Ravenna, OH | United States |
| Population | 6,630 | 11,369 | 329,725,481 |
| Female Population | 54.2% | 50.7% | 50.5% |
| Male Population | 45.8% | 49.3% | 49.5% |
| Median Age | 44.7 | 40.6 | 38.4 |
| space3 | | | |
| Population - 2010 | 6,917 | 11,717 | 309,327,143 |
| Population - 2000 | 6,824 | 11,771 | 285,036,114 |
| Population - 1990 | 6,851 | 12,069 | 251,960,433 |
| Pop. 2000 to Now | -7.9% | -3.8% | 15.6% |
| Pop. 1990 to Now | -8.3% | -6.2% | 30.8% |
| space4 | | | |
| Population Density | 1,264.5 | 2,019.4 | 93.4 |
| Land Area | 5.2 | 5.6 | 3,531,905.4 |
| Water Area | 0.6 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Nitro, WV | Ravenna, OH | United States |
| Age 0 to 4 | 2.9% | 3.7% | 5.9% |
| Age 5 to 9 | 9.8% | 7.1% | 6.1% |
| Age 10 to 14 | 10.0% | 4.8% | 6.6% |
| Age 15 to 17 | 3.9% | 1.6% | 3.9% |
| Age 18 to 20 | 0.8% | 3.4% | 4.0% |
| Age 21 to 24 | 2.9% | 8.1% | 5.2% |
| Age 25 to 34 | 9.2% | 15.3% | 13.8% |
| Age 35 to 44 | 11.1% | 10.0% | 12.9% |
| Age 45 to 54 | 16.0% | 14.8% | 12.6% |
| Age 55 to 59 | 9.6% | 7.5% | 6.7% |
| Age 60 to 64 | 4.9% | 7.3% | 6.3% |
| Age 65 to 74 | 10.4% | 10.9% | 9.6% |
| Age 75 to 84 | 7.5% | 3.9% | 4.5% |
| Age 85 and over | 0.9% | 1.6% | 1.9% |
| space1 | | | |
| Race | | | |
| | Nitro, WV | Ravenna, OH | United States |
| White | 90.2% | 82.7% | 59.4% |
| Black | 3.5% | 9.2% | 12.2% |
| Asian | 0.0% | 1.2% | 5.6% |
| Native American | 0.4% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.3% | 0.4% |
| Two or More Races | 5.3% | 4.1% | 3.2% |
| Hispanic | 0.5% | 2.5% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Nitro, WV | Ravenna, OH | United States |
| Married Population | 55.0% | 38.8% | 49.8% |
| Currently Married | 54.0% | 36.3% | 48.0% |
| Married but Separated | 1.0% | 2.5% | 1.8% |
| Single Population | 45.0% | 61.2% | 50.2% |
| Never Married | 22.0% | 35.2% | 33.8% |
| Divorced | 14.7% | 19.8% | 10.8% |
| Widowed | 8.4% | 6.2% | 5.6% |
| space5 | | | |
| Household Size | 2.40 | 2.20 | 2.60 |
| Households | 2,767 | 5,096 | 124,010,992 |
| Family Households | 1,758 | 2,535 | 80,755,759 |
| Married couple, w/children | 32.5% | 20.5% | 30.5% |
| Married couple, no children | 35.7% | 43.0% | 42.9% |
| Non Family Households | 1,009 | 2,561 | 43,255,233 |
| Single householder, w/children | 19.7% | 19.5% | 15.8% |
| Single householder, no children | 12.0% | 17.0% | 10.8% |