| | Centreville, MD | Chadds Ford township (Delaware County), PA | United States |
| Population | 4,640 | 3,923 | 329,725,481 |
| Female Population | 53.1% | 50.2% | 50.5% |
| Male Population | 46.9% | 49.8% | 49.5% |
| Median Age | 41.4 | 43.3 | 38.4 |
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| Population - 2010 | 4,255 | 3,654 | 309,327,143 |
| Population - 2000 | 1,970 | 3,170 | 285,036,114 |
| Population - 1990 | 2,097 | 3,119 | 251,960,433 |
| Pop. 2000 to Now | 151.2% | 17.7% | 15.6% |
| Pop. 1990 to Now | 136.0% | 19.7% | 30.8% |
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| Population Density | 1,695.3 | 453.0 | 93.4 |
| Land Area | 2.7 | 8.7 | 3,531,905.4 |
| Water Area | 0.0 | 0.1 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Centreville, MD | Chadds Ford township (Delaware County), PA | United States |
| Age 0 to 4 | 5.9% | 5.9% | 5.9% |
| Age 5 to 9 | 9.4% | 9.7% | 6.1% |
| Age 10 to 14 | 8.1% | 7.9% | 6.6% |
| Age 15 to 17 | 1.7% | 3.8% | 3.9% |
| Age 18 to 20 | 4.1% | 1.6% | 4.0% |
| Age 21 to 24 | 2.0% | 2.6% | 5.2% |
| Age 25 to 34 | 7.7% | 9.2% | 13.8% |
| Age 35 to 44 | 16.7% | 14.5% | 12.9% |
| Age 45 to 54 | 11.4% | 15.1% | 12.6% |
| Age 55 to 59 | 4.0% | 7.8% | 6.7% |
| Age 60 to 64 | 4.0% | 4.5% | 6.3% |
| Age 65 to 74 | 12.2% | 8.0% | 9.6% |
| Age 75 to 84 | 11.2% | 7.5% | 4.5% |
| Age 85 and over | 1.6% | 2.0% | 1.9% |
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| Race | | | |
| | Centreville, MD | Chadds Ford township (Delaware County), PA | United States |
| White | 86.3% | 71.1% | 59.4% |
| Black | 10.4% | 1.6% | 12.2% |
| Asian | 1.9% | 17.2% | 5.6% |
| Native American | 0.1% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.5% | 0.4% |
| Two or More Races | 1.1% | 0.3% | 3.2% |
| Hispanic | 0.2% | 9.2% | 18.4% |
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| Marriage & Family | | | |
| | Centreville, MD | Chadds Ford township (Delaware County), PA | United States |
| Married Population | 64.3% | 67.3% | 49.8% |
| Currently Married | 63.9% | 66.6% | 48.0% |
| Married but Separated | 0.5% | 0.7% | 1.8% |
| Single Population | 35.7% | 32.7% | 50.2% |
| Never Married | 20.4% | 20.4% | 33.8% |
| Divorced | 7.3% | 7.9% | 10.8% |
| Widowed | 7.9% | 4.4% | 5.6% |
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| Household Size | 2.69 | 2.79 | 2.60 |
| Households | 1,649 | 1,402 | 124,010,992 |
| Family Households | 1,215 | 1,067 | 80,755,759 |
| Married couple, w/children | 40.2% | 47.0% | 30.5% |
| Married couple, no children | 45.5% | 43.7% | 42.9% |
| Non Family Households | 434 | 335 | 43,255,233 |
| Single householder, w/children | 11.4% | 3.9% | 15.8% |
| Single householder, no children | 3.0% | 5.3% | 10.8% |