| | Kalkaska township, MI | Eastport, MI | United States |
| Population | 4,930 | 236 | 329,725,481 |
| Female Population | 51.9% | 62.3% | 50.5% |
| Male Population | 48.2% | 37.7% | 49.5% |
| Median Age | 38.4 | 69.1 | 38.4 |
| space3 | | | |
| Population - 2010 | 4,725 | 198 | 309,327,143 |
| Population - 2000 | 4,830 | 172 | 285,036,114 |
| Population - 1990 | 4,269 | 129 | 251,960,433 |
| Pop. 2000 to Now | 1.8% | 40.1% | 15.6% |
| Pop. 1990 to Now | 15.2% | 86.8% | 30.8% |
| space4 | | | |
| Population Density | 70.0 | 118.2 | 93.4 |
| Land Area | 70.4 | 2.0 | 3,531,905.4 |
| Water Area | 0.8 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Kalkaska township, MI | Eastport, MI | United States |
| Age 0 to 4 | 6.3% | 2.5% | 5.9% |
| Age 5 to 9 | 5.2% | 0.0% | 6.1% |
| Age 10 to 14 | 8.3% | 2.5% | 6.6% |
| Age 15 to 17 | 5.1% | 0.0% | 3.9% |
| Age 18 to 20 | 5.4% | 0.0% | 4.0% |
| Age 21 to 24 | 2.7% | 5.1% | 5.2% |
| Age 25 to 34 | 12.5% | 5.9% | 13.8% |
| Age 35 to 44 | 14.1% | 2.1% | 12.9% |
| Age 45 to 54 | 10.0% | 4.7% | 12.6% |
| Age 55 to 59 | 7.8% | 0.0% | 6.7% |
| Age 60 to 64 | 7.7% | 10.2% | 6.3% |
| Age 65 to 74 | 8.9% | 49.2% | 9.6% |
| Age 75 to 84 | 3.4% | 15.7% | 4.5% |
| Age 85 and over | 2.7% | 2.1% | 1.9% |
| space1 | | | |
| Race | | | |
| | Kalkaska township, MI | Eastport, MI | United States |
| White | 92.3% | 99.6% | 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% | 0.4% | 3.2% |
| Hispanic | 1.4% | 0.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Kalkaska township, MI | Eastport, MI | United States |
| Married Population | 48.8% | 84.4% | 49.8% |
| Currently Married | 46.7% | 84.4% | 48.0% |
| Married but Separated | 2.0% | 0.0% | 1.8% |
| Single Population | 51.2% | 15.6% | 50.2% |
| Never Married | 28.0% | 7.6% | 33.8% |
| Divorced | 16.4% | 5.8% | 10.8% |
| Widowed | 6.8% | 2.2% | 5.6% |
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| Household Size | 2.47 | 2.59 | 2.60 |
| Households | 1,957 | 91 | 124,010,992 |
| Family Households | 1,221 | 72 | 80,755,759 |
| Married couple, w/children | 35.7% | 9.7% | 30.5% |
| Married couple, no children | 37.1% | 83.3% | 42.9% |
| Non Family Households | 736 | 19 | 43,255,233 |
| Single householder, w/children | 20.7% | 6.9% | 15.8% |
| Single householder, no children | 6.5% | 0.0% | 10.8% |