| | Elk Rapids, MI | Royal Oak, MI | United States |
| Population | 1,438 | 58,368 | 329,725,481 |
| Female Population | 53.8% | 49.0% | 50.5% |
| Male Population | 46.3% | 51.1% | 49.5% |
| Median Age | 58.4 | 35.8 | 38.4 |
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| Population - 2010 | 1,636 | 57,261 | 309,327,143 |
| Population - 2000 | 1,700 | 60,062 | 285,036,114 |
| Population - 1990 | 1,626 | 65,410 | 251,960,433 |
| Pop. 2000 to Now | -4.4% | -1.8% | 15.6% |
| Pop. 1990 to Now | 0.0% | -9.9% | 30.8% |
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| Population Density | 871.5 | 4,949.8 | 93.4 |
| Land Area | 1.7 | 11.8 | 3,531,905.4 |
| Water Area | 0.4 | 0.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Elk Rapids, MI | Royal Oak, MI | United States |
| Age 0 to 4 | 1.8% | 5.6% | 5.9% |
| Age 5 to 9 | 3.9% | 4.1% | 6.1% |
| Age 10 to 14 | 7.2% | 3.3% | 6.6% |
| Age 15 to 17 | 1.8% | 2.3% | 3.9% |
| Age 18 to 20 | 2.3% | 1.8% | 4.0% |
| Age 21 to 24 | 2.4% | 7.1% | 5.2% |
| Age 25 to 34 | 7.4% | 24.4% | 13.8% |
| Age 35 to 44 | 7.9% | 13.3% | 12.9% |
| Age 45 to 54 | 7.2% | 11.1% | 12.6% |
| Age 55 to 59 | 9.8% | 6.2% | 6.7% |
| Age 60 to 64 | 11.2% | 6.9% | 6.3% |
| Age 65 to 74 | 19.8% | 8.9% | 9.6% |
| Age 75 to 84 | 11.3% | 3.6% | 4.5% |
| Age 85 and over | 6.1% | 1.6% | 1.9% |
| space1 | | | |
| Race | | | |
| | Elk Rapids, MI | Royal Oak, MI | United States |
| White | 92.7% | 83.3% | 59.4% |
| Black | 0.0% | 5.5% | 12.2% |
| Asian | 1.4% | 3.7% | 5.6% |
| Native American | 0.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.3% | 0.4% |
| Two or More Races | 2.2% | 2.8% | 3.2% |
| Hispanic | 3.7% | 4.5% | 18.4% |
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| Marriage & Family | | | |
| | Elk Rapids, MI | Royal Oak, MI | United States |
| Married Population | 60.8% | 43.4% | 49.8% |
| Currently Married | 58.9% | 42.7% | 48.0% |
| Married but Separated | 1.9% | 0.7% | 1.8% |
| Single Population | 39.2% | 56.6% | 50.2% |
| Never Married | 17.9% | 42.5% | 33.8% |
| Divorced | 11.7% | 10.0% | 10.8% |
| Widowed | 9.7% | 4.1% | 5.6% |
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| Household Size | 1.97 | 2.01 | 2.60 |
| Households | 729 | 28,971 | 124,010,992 |
| Family Households | 442 | 13,002 | 80,755,759 |
| Married couple, w/children | 11.8% | 29.6% | 30.5% |
| Married couple, no children | 67.9% | 50.2% | 42.9% |
| Non Family Households | 287 | 15,969 | 43,255,233 |
| Single householder, w/children | 16.7% | 8.7% | 15.8% |
| Single householder, no children | 3.6% | 11.5% | 10.8% |