| | Sheffield, OH | Sheffield Lake, OH | United States |
| Population | 4,170 | 8,985 | 329,725,481 |
| Female Population | 50.9% | 50.6% | 50.5% |
| Male Population | 49.1% | 49.4% | 49.5% |
| Median Age | 50.6 | 45 | 38.4 |
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| Population - 2010 | 3,982 | 9,179 | 309,327,143 |
| Population - 2000 | 2,949 | 9,371 | 285,036,114 |
| Population - 1990 | 1,943 | 9,825 | 251,960,433 |
| Pop. 2000 to Now | 55.0% | -4.5% | 15.6% |
| Pop. 1990 to Now | 135.2% | -8.9% | 30.8% |
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| Population Density | 388.2 | 3,627.4 | 93.4 |
| Land Area | 10.7 | 2.5 | 3,531,905.4 |
| Water Area | 0.1 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Sheffield, OH | Sheffield Lake, OH | United States |
| Age 0 to 4 | 3.2% | 2.5% | 5.9% |
| Age 5 to 9 | 5.6% | 4.1% | 6.1% |
| Age 10 to 14 | 4.2% | 6.4% | 6.6% |
| Age 15 to 17 | 3.5% | 3.9% | 3.9% |
| Age 18 to 20 | 1.5% | 4.1% | 4.0% |
| Age 21 to 24 | 4.3% | 3.4% | 5.2% |
| Age 25 to 34 | 11.5% | 12.8% | 13.8% |
| Age 35 to 44 | 9.4% | 12.8% | 12.9% |
| Age 45 to 54 | 14.6% | 11.2% | 12.6% |
| Age 55 to 59 | 9.2% | 10.3% | 6.7% |
| Age 60 to 64 | 8.6% | 9.3% | 6.3% |
| Age 65 to 74 | 16.1% | 15.3% | 9.6% |
| Age 75 to 84 | 6.4% | 2.9% | 4.5% |
| Age 85 and over | 1.8% | 1.1% | 1.9% |
| space1 | | | |
| Race | | | |
| | Sheffield, OH | Sheffield Lake, OH | United States |
| White | 88.4% | 89.2% | 59.4% |
| Black | 3.0% | 1.6% | 12.2% |
| Asian | 1.5% | 0.0% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.2% | 0.4% |
| Two or More Races | 3.9% | 2.8% | 3.2% |
| Hispanic | 3.2% | 6.2% | 18.4% |
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| Marriage & Family | | | |
| | Sheffield, OH | Sheffield Lake, OH | United States |
| Married Population | 60.1% | 52.8% | 49.8% |
| Currently Married | 59.4% | 51.1% | 48.0% |
| Married but Separated | 0.7% | 1.7% | 1.8% |
| Single Population | 39.9% | 47.2% | 50.2% |
| Never Married | 24.1% | 27.9% | 33.8% |
| Divorced | 9.1% | 15.1% | 10.8% |
| Widowed | 6.7% | 4.2% | 5.6% |
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| Household Size | 2.62 | 2.22 | 2.60 |
| Households | 1,585 | 4,039 | 124,010,992 |
| Family Households | 1,180 | 2,370 | 80,755,759 |
| Married couple, w/children | 19.5% | 21.5% | 30.5% |
| Married couple, no children | 64.8% | 59.9% | 42.9% |
| Non Family Households | 405 | 1,669 | 43,255,233 |
| Single householder, w/children | 10.2% | 14.1% | 15.8% |
| Single householder, no children | 5.5% | 4.6% | 10.8% |