| | Phillips, WI | Ontonagon, MI | United States |
| Population | 1,569 | 1,322 | 329,725,481 |
| Female Population | 52.3% | 51.3% | 50.5% |
| Male Population | 47.7% | 48.7% | 49.5% |
| Median Age | 40.5 | 62.5 | 38.4 |
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| Population - 2010 | 1,472 | 1,481 | 309,327,143 |
| Population - 2000 | 1,675 | 1,769 | 285,036,114 |
| Population - 1990 | 1,592 | 2,040 | 251,960,433 |
| Pop. 2000 to Now | -21.2% | -30.2% | 15.6% |
| Pop. 1990 to Now | -17.1% | -39.5% | 30.8% |
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| Population Density | 597.0 | 358.0 | 93.4 |
| Land Area | 2.6 | 3.7 | 3,531,905.4 |
| Water Area | 0.7 | 0.2 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Phillips, WI | Ontonagon, MI | United States |
| Age 0 to 4 | 6.7% | 1.9% | 5.9% |
| Age 5 to 9 | 7.4% | 2.2% | 6.1% |
| Age 10 to 14 | 7.0% | 3.2% | 6.6% |
| Age 15 to 17 | 4.8% | 2.3% | 3.9% |
| Age 18 to 20 | 0.6% | 2.4% | 4.0% |
| Age 21 to 24 | 6.5% | 1.6% | 5.2% |
| Age 25 to 34 | 11.4% | 5.7% | 13.8% |
| Age 35 to 44 | 10.6% | 8.5% | 12.9% |
| Age 45 to 54 | 9.6% | 10.1% | 12.6% |
| Age 55 to 59 | 4.3% | 4.7% | 6.7% |
| Age 60 to 64 | 7.3% | 13.4% | 6.3% |
| Age 65 to 74 | 10.4% | 22.2% | 9.6% |
| Age 75 to 84 | 8.2% | 17.1% | 4.5% |
| Age 85 and over | 5.2% | 4.8% | 1.9% |
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| Race | | | |
| | Phillips, WI | Ontonagon, MI | United States |
| White | 86.6% | 94.0% | 59.4% |
| Black | 0.0% | 1.2% | 12.2% |
| Asian | 1.3% | 1.5% | 5.6% |
| Native American | 0.7% | 0.2% | 0.6% |
| Hawaiian, Pacific Islander | 5.5% | 0.0% | 0.2% |
| Other | 0.2% | 0.0% | 0.4% |
| Two or More Races | 1.8% | 2.4% | 3.2% |
| Hispanic | 3.8% | 0.6% | 18.4% |
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| Marriage & Family | | | |
| | Phillips, WI | Ontonagon, MI | United States |
| Married Population | 48.6% | 56.0% | 49.8% |
| Currently Married | 47.5% | 52.7% | 48.0% |
| Married but Separated | 1.1% | 3.3% | 1.8% |
| Single Population | 51.4% | 44.0% | 50.2% |
| Never Married | 27.6% | 20.6% | 33.8% |
| Divorced | 14.8% | 12.0% | 10.8% |
| Widowed | 9.0% | 11.3% | 5.6% |
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| Household Size | 2.17 | 1.95 | 2.60 |
| Households | 688 | 646 | 124,010,992 |
| Family Households | 364 | 363 | 80,755,759 |
| Married couple, w/children | 20.9% | 6.1% | 30.5% |
| Married couple, no children | 47.0% | 78.2% | 42.9% |
| Non Family Households | 324 | 283 | 43,255,233 |
| Single householder, w/children | 30.5% | 11.8% | 15.8% |
| Single householder, no children | 1.6% | 3.9% | 10.8% |