| | Pittsfield charter, MI | Ann Arbor charter, MI | United States |
| Population | 39,158 | 4,747 | 329,725,481 |
| Female Population | 51.6% | 50.9% | 50.5% |
| Male Population | 48.4% | 49.1% | 49.5% |
| Median Age | 36.2 | 47.7 | 38.4 |
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| Population - 2010 | 34,874 | 4,332 | 309,327,143 |
| Population - 2000 | 30,167 | 4,720 | 285,036,114 |
| Population - 1990 | 17,668 | 3,793 | 251,960,433 |
| Pop. 2000 to Now | 29.0% | -4.7% | 15.6% |
| Pop. 1990 to Now | 120.2% | 18.6% | 30.8% |
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| Population Density | 1,437.7 | 283.9 | 93.4 |
| Land Area | 27.2 | 16.7 | 3,531,905.4 |
| Water Area | 0.1 | 0.1 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Pittsfield charter, MI | Ann Arbor charter, MI | United States |
| Age 0 to 4 | 5.4% | 5.8% | 5.9% |
| Age 5 to 9 | 5.2% | 5.6% | 6.1% |
| Age 10 to 14 | 6.4% | 6.5% | 6.6% |
| Age 15 to 17 | 3.4% | 4.2% | 3.9% |
| Age 18 to 20 | 4.3% | 2.7% | 4.0% |
| Age 21 to 24 | 7.2% | 4.1% | 5.2% |
| Age 25 to 34 | 16.1% | 8.4% | 13.8% |
| Age 35 to 44 | 13.7% | 9.1% | 12.9% |
| Age 45 to 54 | 12.4% | 17.7% | 12.6% |
| Age 55 to 59 | 6.5% | 8.7% | 6.7% |
| Age 60 to 64 | 6.2% | 3.4% | 6.3% |
| Age 65 to 74 | 8.0% | 14.3% | 9.6% |
| Age 75 to 84 | 3.7% | 7.4% | 4.5% |
| Age 85 and over | 1.6% | 2.2% | 1.9% |
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| Race | | | |
| | Pittsfield charter, MI | Ann Arbor charter, MI | United States |
| White | 61.2% | 66.8% | 59.4% |
| Black | 12.0% | 1.3% | 12.2% |
| Asian | 15.0% | 24.1% | 5.6% |
| Native American | 0.2% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.1% | 0.0% | 0.2% |
| Other | 0.3% | 0.1% | 0.4% |
| Two or More Races | 5.0% | 4.1% | 3.2% |
| Hispanic | 6.2% | 3.6% | 18.4% |
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| Marriage & Family | | | |
| | Pittsfield charter, MI | Ann Arbor charter, MI | United States |
| Married Population | 51.5% | 64.9% | 49.8% |
| Currently Married | 50.6% | 64.5% | 48.0% |
| Married but Separated | 0.9% | 0.4% | 1.8% |
| Single Population | 48.5% | 35.1% | 50.2% |
| Never Married | 36.6% | 23.5% | 33.8% |
| Divorced | 8.2% | 6.0% | 10.8% |
| Widowed | 3.8% | 5.6% | 5.6% |
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| Household Size | 2.38 | 2.36 | 2.60 |
| Households | 15,728 | 1,958 | 124,010,992 |
| Family Households | 9,136 | 1,290 | 80,755,759 |
| Married couple, w/children | 38.5% | 39.7% | 30.5% |
| Married couple, no children | 46.4% | 55.3% | 42.9% |
| Non Family Households | 6,592 | 668 | 43,255,233 |
| Single householder, w/children | 7.8% | 4.0% | 15.8% |
| Single householder, no children | 7.4% | 0.9% | 10.8% |