| | Kalkaska township, MI | Lake Ann, MI | United States |
| Population | 4,930 | 201 | 329,725,481 |
| Female Population | 51.9% | 52.7% | 50.5% |
| Male Population | 48.2% | 47.3% | 49.5% |
| Median Age | 38.4 | 49.8 | 38.4 |
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| Population - 2010 | 4,725 | 267 | 309,327,143 |
| Population - 2000 | 4,830 | 276 | 285,036,114 |
| Population - 1990 | 4,269 | 217 | 251,960,433 |
| Pop. 2000 to Now | 1.8% | -1.8% | 15.6% |
| Pop. 1990 to Now | 15.2% | 24.9% | 30.8% |
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| Population Density | 70.0 | 446.7 | 93.4 |
| Land Area | 70.4 | 0.5 | 3,531,905.4 |
| Water Area | 0.8 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Kalkaska township, MI | Lake Ann, MI | United States |
| Age 0 to 4 | 6.3% | 1.0% | 5.9% |
| Age 5 to 9 | 5.2% | 3.0% | 6.1% |
| Age 10 to 14 | 8.3% | 3.5% | 6.6% |
| Age 15 to 17 | 5.1% | 1.5% | 3.9% |
| Age 18 to 20 | 5.4% | 0.0% | 4.0% |
| Age 21 to 24 | 2.7% | 1.5% | 5.2% |
| Age 25 to 34 | 12.5% | 22.9% | 13.8% |
| Age 35 to 44 | 14.1% | 8.5% | 12.9% |
| Age 45 to 54 | 10.0% | 13.4% | 12.6% |
| Age 55 to 59 | 7.8% | 10.0% | 6.7% |
| Age 60 to 64 | 7.7% | 15.9% | 6.3% |
| Age 65 to 74 | 8.9% | 11.9% | 9.6% |
| Age 75 to 84 | 3.4% | 3.5% | 4.5% |
| Age 85 and over | 2.7% | 3.5% | 1.9% |
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| Race | | | |
| | Kalkaska township, MI | Lake Ann, MI | United States |
| White | 92.3% | 95.5% | 59.4% |
| Black | 0.5% | 0.0% | 12.2% |
| Asian | 1.5% | 0.0% | 5.6% |
| Native American | 0.9% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 3.5% | 4.5% | 3.2% |
| Hispanic | 1.4% | 0.0% | 18.4% |
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| Marriage & Family | | | |
| | Kalkaska township, MI | Lake Ann, MI | United States |
| Married Population | 48.8% | 60.8% | 49.8% |
| Currently Married | 46.7% | 60.8% | 48.0% |
| Married but Separated | 2.0% | 0.0% | 1.8% |
| Single Population | 51.2% | 39.2% | 50.2% |
| Never Married | 28.0% | 22.0% | 33.8% |
| Divorced | 16.4% | 9.7% | 10.8% |
| Widowed | 6.8% | 7.5% | 5.6% |
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| Household Size | 2.47 | 2.16 | 2.60 |
| Households | 1,957 | 93 | 124,010,992 |
| Family Households | 1,221 | 67 | 80,755,759 |
| Married couple, w/children | 35.7% | 13.4% | 30.5% |
| Married couple, no children | 37.1% | 70.1% | 42.9% |
| Non Family Households | 736 | 26 | 43,255,233 |
| Single householder, w/children | 20.7% | 11.9% | 15.8% |
| Single householder, no children | 6.5% | 4.5% | 10.8% |