| | Alanson, MI | Vienna, IL | United States |
| Population | 852 | 1,729 | 329,725,481 |
| Female Population | 49.3% | 54.4% | 50.5% |
| Male Population | 50.7% | 45.6% | 49.5% |
| Median Age | 39.4 | 49.2 | 38.4 |
| space3 | | | |
| Population - 2010 | 737 | 1,429 | 309,327,143 |
| Population - 2000 | 785 | 1,234 | 285,036,114 |
| Population - 1990 | 677 | 1,446 | 251,960,433 |
| Pop. 2000 to Now | -3.8% | 15.6% | 15.6% |
| Pop. 1990 to Now | 11.5% | -1.3% | 30.8% |
| space4 | | | |
| Population Density | 865.0 | 609.5 | 93.4 |
| Land Area | 1.0 | 2.8 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Alanson, MI | Vienna, IL | United States |
| Age 0 to 4 | 4.7% | 7.9% | 5.9% |
| Age 5 to 9 | 5.5% | 8.0% | 6.1% |
| Age 10 to 14 | 9.3% | 4.8% | 6.6% |
| Age 15 to 17 | 5.2% | 2.0% | 3.9% |
| Age 18 to 20 | 1.8% | 3.1% | 4.0% |
| Age 21 to 24 | 1.2% | 2.1% | 5.2% |
| Age 25 to 34 | 15.0% | 10.2% | 13.8% |
| Age 35 to 44 | 18.7% | 9.7% | 12.9% |
| Age 45 to 54 | 13.3% | 9.8% | 12.6% |
| Age 55 to 59 | 8.2% | 6.3% | 6.7% |
| Age 60 to 64 | 6.8% | 7.5% | 6.3% |
| Age 65 to 74 | 6.3% | 14.6% | 9.6% |
| Age 75 to 84 | 3.8% | 5.6% | 4.5% |
| Age 85 and over | 0.4% | 8.4% | 1.9% |
| space1 | | | |
| Race | | | |
| | Alanson, MI | Vienna, IL | United States |
| White | 87.1% | 94.9% | 59.4% |
| Black | 0.5% | 0.6% | 12.2% |
| Asian | 0.0% | 0.3% | 5.6% |
| Native American | 2.8% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.5% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 2.7% | 2.9% | 3.2% |
| Hispanic | 6.5% | 1.3% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Alanson, MI | Vienna, IL | United States |
| Married Population | 45.2% | 32.2% | 49.8% |
| Currently Married | 44.6% | 31.7% | 48.0% |
| Married but Separated | 0.6% | 0.5% | 1.8% |
| Single Population | 54.8% | 67.8% | 50.2% |
| Never Married | 35.6% | 30.4% | 33.8% |
| Divorced | 16.3% | 20.6% | 10.8% |
| Widowed | 2.9% | 16.7% | 5.6% |
| space5 | | | |
| Household Size | 2.42 | 2.84 | 2.60 |
| Households | 352 | 589 | 124,010,992 |
| Family Households | 212 | 323 | 80,755,759 |
| Married couple, w/children | 34.9% | 18.0% | 30.5% |
| Married couple, no children | 37.7% | 45.5% | 42.9% |
| Non Family Households | 140 | 266 | 43,255,233 |
| Single householder, w/children | 17.0% | 20.1% | 15.8% |
| Single householder, no children | 10.4% | 16.4% | 10.8% |