| | Mayville, WI | Wayland, MI | United States |
| Population | 5,165 | 4,381 | 329,725,481 |
| Female Population | 53.6% | 51.0% | 50.5% |
| Male Population | 46.4% | 49.0% | 49.5% |
| Median Age | 42.4 | 31.4 | 38.4 |
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| Population - 2010 | 5,151 | 4,080 | 309,327,143 |
| Population - 2000 | 4,902 | 3,939 | 285,036,114 |
| Population - 1990 | 4,374 | 2,751 | 251,960,433 |
| Pop. 2000 to Now | -1.5% | 7.6% | 15.6% |
| Pop. 1990 to Now | 10.4% | 54.0% | 30.8% |
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| Population Density | 1,586.3 | 1,479.1 | 93.4 |
| Land Area | 3.3 | 3.0 | 3,531,905.4 |
| Water Area | 0.1 | 0.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Mayville, WI | Wayland, MI | United States |
| Age 0 to 4 | 10.6% | 10.2% | 5.9% |
| Age 5 to 9 | 5.9% | 8.9% | 6.1% |
| Age 10 to 14 | 6.1% | 3.0% | 6.6% |
| Age 15 to 17 | 3.3% | 3.5% | 3.9% |
| Age 18 to 20 | 2.5% | 3.7% | 4.0% |
| Age 21 to 24 | 2.1% | 10.8% | 5.2% |
| Age 25 to 34 | 9.5% | 15.8% | 13.8% |
| Age 35 to 44 | 14.1% | 9.6% | 12.9% |
| Age 45 to 54 | 12.5% | 14.6% | 12.6% |
| Age 55 to 59 | 4.7% | 4.7% | 6.7% |
| Age 60 to 64 | 8.0% | 4.6% | 6.3% |
| Age 65 to 74 | 12.2% | 6.8% | 9.6% |
| Age 75 to 84 | 7.1% | 1.6% | 4.5% |
| Age 85 and over | 1.4% | 2.0% | 1.9% |
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| Race | | | |
| | Mayville, WI | Wayland, MI | United States |
| White | 95.7% | 90.3% | 59.4% |
| Black | 0.0% | 4.6% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 3.6% | 2.8% | 3.2% |
| Hispanic | 0.7% | 2.3% | 18.4% |
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| Marriage & Family | | | |
| | Mayville, WI | Wayland, MI | United States |
| Married Population | 51.0% | 37.8% | 49.8% |
| Currently Married | 50.3% | 36.4% | 48.0% |
| Married but Separated | 0.8% | 1.4% | 1.8% |
| Single Population | 49.0% | 62.2% | 50.2% |
| Never Married | 25.8% | 37.7% | 33.8% |
| Divorced | 18.4% | 18.7% | 10.8% |
| Widowed | 4.9% | 5.7% | 5.6% |
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| Household Size | 2.35 | 2.44 | 2.60 |
| Households | 2,171 | 1,764 | 124,010,992 |
| Family Households | 1,280 | 1,040 | 80,755,759 |
| Married couple, w/children | 33.1% | 27.0% | 30.5% |
| Married couple, no children | 44.0% | 29.5% | 42.9% |
| Non Family Households | 891 | 724 | 43,255,233 |
| Single householder, w/children | 19.5% | 31.1% | 15.8% |
| Single householder, no children | 3.4% | 12.4% | 10.8% |