| | Chesterfield, NH | Creve Coeur, MO | United States |
| Population | 3,562 | 18,648 | 329,725,481 |
| Female Population | 42.5% | 53.9% | 50.5% |
| Male Population | 57.5% | 46.1% | 49.5% |
| Median Age | 45.7 | 46 | 38.4 |
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| Population - 2010 | 3,602 | 17,809 | 309,327,143 |
| Population - 2000 | 3,542 | 16,500 | 285,036,114 |
| Population - 1990 | 3,112 | 12,304 | 251,960,433 |
| Pop. 2000 to Now | 2.9% | 12.9% | 15.6% |
| Pop. 1990 to Now | 17.1% | 51.4% | 30.8% |
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| Population Density | 78.2 | 1,808.6 | 93.4 |
| Land Area | 45.6 | 10.3 | 3,531,905.4 |
| Water Area | 2.0 | 0.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Chesterfield, NH | Creve Coeur, MO | United States |
| Age 0 to 4 | 4.5% | 4.2% | 5.9% |
| Age 5 to 9 | 6.8% | 4.5% | 6.1% |
| Age 10 to 14 | 8.6% | 5.4% | 6.6% |
| Age 15 to 17 | 3.1% | 3.5% | 3.9% |
| Age 18 to 20 | 0.8% | 2.6% | 4.0% |
| Age 21 to 24 | 1.3% | 5.1% | 5.2% |
| Age 25 to 34 | 13.2% | 16.3% | 13.8% |
| Age 35 to 44 | 8.0% | 7.5% | 12.9% |
| Age 45 to 54 | 13.9% | 13.1% | 12.6% |
| Age 55 to 59 | 6.1% | 6.4% | 6.7% |
| Age 60 to 64 | 9.0% | 6.2% | 6.3% |
| Age 65 to 74 | 19.4% | 11.7% | 9.6% |
| Age 75 to 84 | 4.2% | 8.3% | 4.5% |
| Age 85 and over | 1.2% | 5.1% | 1.9% |
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| Race | | | |
| | Chesterfield, NH | Creve Coeur, MO | United States |
| White | 95.3% | 74.1% | 59.4% |
| Black | 0.4% | 9.7% | 12.2% |
| Asian | 2.3% | 11.0% | 5.6% |
| Native American | 0.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.1% | 0.2% |
| Other | 0.0% | 0.8% | 0.4% |
| Two or More Races | 2.1% | 1.5% | 3.2% |
| Hispanic | 0.0% | 2.8% | 18.4% |
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| Marriage & Family | | | |
| | Chesterfield, NH | Creve Coeur, MO | United States |
| Married Population | 66.1% | 52.7% | 49.8% |
| Currently Married | 64.9% | 51.4% | 48.0% |
| Married but Separated | 1.3% | 1.3% | 1.8% |
| Single Population | 33.9% | 47.3% | 50.2% |
| Never Married | 18.0% | 29.2% | 33.8% |
| Divorced | 13.0% | 10.2% | 10.8% |
| Widowed | 2.8% | 8.0% | 5.6% |
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| Household Size | 2.54 | 2.18 | 2.60 |
| Households | 1,404 | 8,352 | 124,010,992 |
| Family Households | 990 | 4,740 | 80,755,759 |
| Married couple, w/children | 30.2% | 27.3% | 30.5% |
| Married couple, no children | 60.1% | 55.8% | 42.9% |
| Non Family Households | 414 | 3,612 | 43,255,233 |
| Single householder, w/children | 8.3% | 10.8% | 15.8% |
| Single householder, no children | 1.4% | 6.1% | 10.8% |