| | Broadview Heights, OH | Westlake, OH | United States |
| Population | 19,820 | 34,049 | 329,725,481 |
| Female Population | 53.2% | 51.5% | 50.5% |
| Male Population | 46.8% | 48.5% | 49.5% |
| Median Age | 44.4 | 46.3 | 38.4 |
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| Population - 2010 | 19,401 | 32,683 | 309,327,143 |
| Population - 2000 | 15,967 | 31,719 | 285,036,114 |
| Population - 1990 | 12,219 | 27,018 | 251,960,433 |
| Pop. 2000 to Now | 19.6% | 0.6% | 15.6% |
| Pop. 1990 to Now | 56.3% | 18.1% | 30.8% |
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| Population Density | 1,518.9 | 2,138.0 | 93.4 |
| Land Area | 13.0 | 15.9 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Broadview Heights, OH | Westlake, OH | United States |
| Age 0 to 4 | 5.0% | 5.2% | 5.9% |
| Age 5 to 9 | 5.2% | 5.0% | 6.1% |
| Age 10 to 14 | 7.1% | 6.5% | 6.6% |
| Age 15 to 17 | 3.7% | 4.1% | 3.9% |
| Age 18 to 20 | 3.8% | 2.3% | 4.0% |
| Age 21 to 24 | 4.0% | 4.2% | 5.2% |
| Age 25 to 34 | 11.2% | 11.7% | 13.8% |
| Age 35 to 44 | 11.2% | 9.8% | 12.9% |
| Age 45 to 54 | 15.6% | 13.2% | 12.6% |
| Age 55 to 59 | 8.9% | 7.3% | 6.7% |
| Age 60 to 64 | 6.6% | 8.4% | 6.3% |
| Age 65 to 74 | 12.3% | 12.4% | 9.6% |
| Age 75 to 84 | 3.1% | 5.8% | 4.5% |
| Age 85 and over | 2.4% | 4.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | Broadview Heights, OH | Westlake, OH | United States |
| White | 86.5% | 85.7% | 59.4% |
| Black | 3.7% | 2.5% | 12.2% |
| Asian | 5.3% | 5.9% | 5.6% |
| Native American | 0.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.1% | 0.4% |
| Two or More Races | 3.0% | 3.0% | 3.2% |
| Hispanic | 1.5% | 2.6% | 18.4% |
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| Marriage & Family | | | |
| | Broadview Heights, OH | Westlake, OH | United States |
| Married Population | 58.2% | 54.4% | 49.8% |
| Currently Married | 57.6% | 53.6% | 48.0% |
| Married but Separated | 0.6% | 0.8% | 1.8% |
| Single Population | 41.8% | 45.6% | 50.2% |
| Never Married | 28.6% | 28.8% | 33.8% |
| Divorced | 7.8% | 9.3% | 10.8% |
| Widowed | 5.5% | 7.5% | 5.6% |
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| Household Size | 2.43 | 2.30 | 2.60 |
| Households | 8,110 | 14,446 | 124,010,992 |
| Family Households | 5,526 | 8,588 | 80,755,759 |
| Married couple, w/children | 30.7% | 35.1% | 30.5% |
| Married couple, no children | 52.9% | 49.3% | 42.9% |
| Non Family Households | 2,584 | 5,858 | 43,255,233 |
| Single householder, w/children | 11.4% | 6.5% | 15.8% |
| Single householder, no children | 5.0% | 9.2% | 10.8% |