| | Fishkill, NY | Tempe, AZ | United States |
| Population | 24,381 | 178,862 | 329,725,481 |
| Female Population | 46.5% | 46.8% | 50.5% |
| Male Population | 53.5% | 53.2% | 49.5% |
| Median Age | 44.5 | 29.6 | 38.4 |
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| Population - 2010 | 23,814 | 162,317 | 309,327,143 |
| Population - 2000 | 20,258 | 158,625 | 285,036,114 |
| Population - 1990 | 17,655 | 141,865 | 251,960,433 |
| Pop. 2000 to Now | 18.7% | 26.3% | 15.6% |
| Pop. 1990 to Now | 36.3% | 41.3% | 30.8% |
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| Population Density | 891.9 | 4,474.1 | 93.4 |
| Land Area | 27.3 | 40.0 | 3,531,905.4 |
| Water Area | 4.7 | 0.2 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Fishkill, NY | Tempe, AZ | United States |
| Age 0 to 4 | 4.0% | 4.6% | 5.9% |
| Age 5 to 9 | 4.1% | 3.5% | 6.1% |
| Age 10 to 14 | 4.9% | 3.7% | 6.6% |
| Age 15 to 17 | 2.4% | 2.5% | 3.9% |
| Age 18 to 20 | 1.8% | 10.1% | 4.0% |
| Age 21 to 24 | 4.4% | 12.7% | 5.2% |
| Age 25 to 34 | 15.1% | 22.8% | 13.8% |
| Age 35 to 44 | 14.1% | 11.5% | 12.9% |
| Age 45 to 54 | 14.1% | 8.5% | 12.6% |
| Age 55 to 59 | 6.1% | 4.7% | 6.7% |
| Age 60 to 64 | 8.2% | 5.0% | 6.3% |
| Age 65 to 74 | 11.5% | 6.2% | 9.6% |
| Age 75 to 84 | 7.0% | 3.0% | 4.5% |
| Age 85 and over | 2.4% | 1.2% | 1.9% |
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| Race | | | |
| | Fishkill, NY | Tempe, AZ | United States |
| White | 64.7% | 54.1% | 59.4% |
| Black | 12.6% | 7.1% | 12.2% |
| Asian | 4.1% | 8.6% | 5.6% |
| Native American | 0.1% | 2.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.4% | 0.2% |
| Other | 0.2% | 0.4% | 0.4% |
| Two or More Races | 4.0% | 4.3% | 3.2% |
| Hispanic | 14.3% | 23.1% | 18.4% |
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| Marriage & Family | | | |
| | Fishkill, NY | Tempe, AZ | United States |
| Married Population | 48.4% | 31.7% | 49.8% |
| Currently Married | 45.1% | 30.4% | 48.0% |
| Married but Separated | 3.3% | 1.3% | 1.8% |
| Single Population | 51.6% | 68.3% | 50.2% |
| Never Married | 32.3% | 55.4% | 33.8% |
| Divorced | 11.9% | 9.9% | 10.8% |
| Widowed | 7.5% | 3.0% | 5.6% |
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| Household Size | 2.23 | 2.27 | 2.60 |
| Households | 9,349 | 73,785 | 124,010,992 |
| Family Households | 5,393 | 33,837 | 80,755,759 |
| Married couple, w/children | 26.6% | 24.4% | 30.5% |
| Married couple, no children | 49.8% | 41.0% | 42.9% |
| Non Family Households | 3,956 | 39,948 | 43,255,233 |
| Single householder, w/children | 9.5% | 16.5% | 15.8% |
| Single householder, no children | 14.1% | 18.0% | 10.8% |