| | Springfield, OH | Lorain, OH | United States |
| Population | 58,992 | 65,051 | 329,725,481 |
| Female Population | 52.7% | 51.5% | 50.5% |
| Male Population | 47.3% | 48.5% | 49.5% |
| Median Age | 36.3 | 38.2 | 38.4 |
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| Population - 2010 | 60,531 | 64,004 | 309,327,143 |
| Population - 2000 | 65,358 | 68,652 | 285,036,114 |
| Population - 1990 | 70,487 | 71,245 | 251,960,433 |
| Pop. 2000 to Now | -10.6% | -7.0% | 15.6% |
| Pop. 1990 to Now | -17.1% | -10.4% | 30.8% |
| space4 | | | |
| Population Density | 2,291.3 | 2,747.9 | 93.4 |
| Land Area | 25.7 | 23.7 | 3,531,905.4 |
| Water Area | 0.2 | 0.5 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Springfield, OH | Lorain, OH | United States |
| Age 0 to 4 | 7.0% | 7.5% | 5.9% |
| Age 5 to 9 | 6.5% | 7.3% | 6.1% |
| Age 10 to 14 | 6.7% | 6.0% | 6.6% |
| Age 15 to 17 | 4.0% | 4.2% | 3.9% |
| Age 18 to 20 | 5.4% | 4.3% | 4.0% |
| Age 21 to 24 | 6.1% | 4.6% | 5.2% |
| Age 25 to 34 | 12.8% | 12.4% | 13.8% |
| Age 35 to 44 | 10.5% | 12.4% | 12.9% |
| Age 45 to 54 | 11.5% | 11.6% | 12.6% |
| Age 55 to 59 | 6.5% | 7.2% | 6.7% |
| Age 60 to 64 | 6.1% | 6.3% | 6.3% |
| Age 65 to 74 | 9.6% | 9.5% | 9.6% |
| Age 75 to 84 | 4.6% | 4.6% | 4.5% |
| Age 85 and over | 2.8% | 2.1% | 1.9% |
| space1 | | | |
| Race | | | |
| | Springfield, OH | Lorain, OH | United States |
| White | 70.6% | 51.3% | 59.4% |
| Black | 17.4% | 15.0% | 12.2% |
| Asian | 0.8% | 1.0% | 5.6% |
| Native American | 0.1% | 0.3% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.4% | 0.7% | 0.4% |
| Two or More Races | 6.0% | 3.8% | 3.2% |
| Hispanic | 4.7% | 27.8% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Springfield, OH | Lorain, OH | United States |
| Married Population | 37.0% | 38.5% | 49.8% |
| Currently Married | 34.4% | 36.3% | 48.0% |
| Married but Separated | 2.6% | 2.2% | 1.8% |
| Single Population | 63.0% | 61.5% | 50.2% |
| Never Married | 39.9% | 39.8% | 33.8% |
| Divorced | 14.5% | 14.1% | 10.8% |
| Widowed | 8.6% | 7.6% | 5.6% |
| space5 | | | |
| Household Size | 2.35 | 2.42 | 2.60 |
| Households | 24,001 | 26,622 | 124,010,992 |
| Family Households | 13,606 | 15,180 | 80,755,759 |
| Married couple, w/children | 22.1% | 22.5% | 30.5% |
| Married couple, no children | 33.3% | 33.5% | 42.9% |
| Non Family Households | 10,395 | 11,442 | 43,255,233 |
| Single householder, w/children | 31.7% | 27.2% | 15.8% |
| Single householder, no children | 12.8% | 16.8% | 10.8% |