| | Harper Woods, MI | Madison Heights, MI | United States |
| Population | 15,287 | 28,719 | 329,725,481 |
| Female Population | 54.2% | 50.6% | 50.5% |
| Male Population | 45.8% | 49.4% | 49.5% |
| Median Age | 37.2 | 41 | 38.4 |
| space3 | | | |
| Population - 2010 | 14,363 | 29,709 | 309,327,143 |
| Population - 2000 | 14,254 | 31,101 | 285,036,114 |
| Population - 1990 | 14,903 | 32,196 | 251,960,433 |
| Pop. 2000 to Now | -4.2% | -4.7% | 15.6% |
| Pop. 1990 to Now | -8.4% | -8.0% | 30.8% |
| space4 | | | |
| Population Density | 5,814.8 | 4,052.9 | 93.4 |
| Land Area | 2.6 | 7.1 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Harper Woods, MI | Madison Heights, MI | United States |
| Age 0 to 4 | 5.8% | 3.7% | 5.9% |
| Age 5 to 9 | 7.9% | 3.3% | 6.1% |
| Age 10 to 14 | 7.7% | 6.9% | 6.6% |
| Age 15 to 17 | 5.1% | 2.1% | 3.9% |
| Age 18 to 20 | 3.9% | 2.6% | 4.0% |
| Age 21 to 24 | 4.9% | 5.7% | 5.2% |
| Age 25 to 34 | 13.3% | 18.0% | 13.8% |
| Age 35 to 44 | 11.6% | 12.8% | 12.9% |
| Age 45 to 54 | 15.8% | 15.3% | 12.6% |
| Age 55 to 59 | 6.5% | 7.5% | 6.7% |
| Age 60 to 64 | 4.7% | 5.8% | 6.3% |
| Age 65 to 74 | 7.4% | 9.4% | 9.6% |
| Age 75 to 84 | 2.7% | 4.5% | 4.5% |
| Age 85 and over | 2.7% | 2.4% | 1.9% |
| space1 | | | |
| Race | | | |
| | Harper Woods, MI | Madison Heights, MI | United States |
| White | 29.8% | 79.3% | 59.4% |
| Black | 62.9% | 7.7% | 12.2% |
| Asian | 0.4% | 7.2% | 5.6% |
| Native American | 0.3% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.1% | 0.2% |
| Other | 0.0% | 0.3% | 0.4% |
| Two or More Races | 5.3% | 3.3% | 3.2% |
| Hispanic | 1.4% | 2.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Harper Woods, MI | Madison Heights, MI | United States |
| Married Population | 29.2% | 41.0% | 49.8% |
| Currently Married | 28.2% | 40.2% | 48.0% |
| Married but Separated | 1.0% | 0.8% | 1.8% |
| Single Population | 70.8% | 59.0% | 50.2% |
| Never Married | 50.0% | 40.5% | 33.8% |
| Divorced | 13.3% | 12.2% | 10.8% |
| Widowed | 7.5% | 6.3% | 5.6% |
| space5 | | | |
| Household Size | 2.78 | 2.12 | 2.60 |
| Households | 5,439 | 13,487 | 124,010,992 |
| Family Households | 3,335 | 6,587 | 80,755,759 |
| Married couple, w/children | 19.4% | 24.2% | 30.5% |
| Married couple, no children | 25.8% | 44.8% | 42.9% |
| Non Family Households | 2,104 | 6,900 | 43,255,233 |
| Single householder, w/children | 30.9% | 17.4% | 15.8% |
| Single householder, no children | 23.8% | 13.5% | 10.8% |