| | Clayton, MO | Edina, MN | United States |
| Population | 16,905 | 53,059 | 329,725,481 |
| Female Population | 51.3% | 52.5% | 50.5% |
| Male Population | 48.7% | 47.6% | 49.5% |
| Median Age | 29.2 | 44.8 | 38.4 |
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| Population - 2010 | 15,974 | 48,046 | 309,327,143 |
| Population - 2000 | 12,825 | 47,425 | 285,036,114 |
| Population - 1990 | 13,874 | 46,070 | 251,960,433 |
| Pop. 2000 to Now | 30.8% | 10.7% | 15.6% |
| Pop. 1990 to Now | 20.9% | 13.9% | 30.8% |
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| Population Density | 6,737.7 | 3,433.1 | 93.4 |
| Land Area | 2.5 | 15.5 | 3,531,905.4 |
| Water Area | 0.0 | 0.5 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Clayton, MO | Edina, MN | United States |
| Age 0 to 4 | 3.3% | 5.4% | 5.9% |
| Age 5 to 9 | 4.7% | 6.0% | 6.1% |
| Age 10 to 14 | 6.5% | 7.3% | 6.6% |
| Age 15 to 17 | 3.5% | 4.2% | 3.9% |
| Age 18 to 20 | 20.3% | 2.4% | 4.0% |
| Age 21 to 24 | 7.8% | 2.7% | 5.2% |
| Age 25 to 34 | 9.9% | 9.7% | 13.8% |
| Age 35 to 44 | 10.8% | 12.6% | 12.9% |
| Age 45 to 54 | 11.2% | 13.6% | 12.6% |
| Age 55 to 59 | 5.8% | 7.4% | 6.7% |
| Age 60 to 64 | 4.3% | 6.7% | 6.3% |
| Age 65 to 74 | 6.5% | 11.5% | 9.6% |
| Age 75 to 84 | 3.9% | 6.6% | 4.5% |
| Age 85 and over | 1.7% | 4.0% | 1.9% |
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| Race | | | |
| | Clayton, MO | Edina, MN | United States |
| White | 72.8% | 83.8% | 59.4% |
| Black | 7.7% | 2.2% | 12.2% |
| Asian | 10.7% | 6.6% | 5.6% |
| Native American | 0.1% | 0.2% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.7% | 0.2% | 0.4% |
| Two or More Races | 4.8% | 3.9% | 3.2% |
| Hispanic | 3.3% | 3.1% | 18.4% |
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| Marriage & Family | | | |
| | Clayton, MO | Edina, MN | United States |
| Married Population | 40.2% | 61.2% | 49.8% |
| Currently Married | 39.9% | 60.6% | 48.0% |
| Married but Separated | 0.3% | 0.6% | 1.8% |
| Single Population | 59.8% | 38.8% | 50.2% |
| Never Married | 50.7% | 23.6% | 33.8% |
| Divorced | 5.9% | 9.1% | 10.8% |
| Widowed | 3.2% | 6.1% | 5.6% |
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| Household Size | 2.23 | 2.33 | 2.60 |
| Households | 5,566 | 22,667 | 124,010,992 |
| Family Households | 3,213 | 14,527 | 80,755,759 |
| Married couple, w/children | 39.2% | 36.9% | 30.5% |
| Married couple, no children | 45.5% | 49.8% | 42.9% |
| Non Family Households | 2,353 | 8,140 | 43,255,233 |
| Single householder, w/children | 11.6% | 6.8% | 15.8% |
| Single householder, no children | 3.7% | 6.5% | 10.8% |