| | Henning, MN | Andover, MN | United States |
| Population | 776 | 32,471 | 329,725,481 |
| Female Population | 48.3% | 50.0% | 50.5% |
| Male Population | 51.7% | 50.0% | 49.5% |
| Median Age | 51 | 40.5 | 38.4 |
| space3 | | | |
| Population - 2010 | 802 | 30,648 | 309,327,143 |
| Population - 2000 | 719 | 26,588 | 285,036,114 |
| Population - 1990 | 738 | 15,216 | 251,960,433 |
| Pop. 2000 to Now | 12.1% | 25.8% | 15.6% |
| Pop. 1990 to Now | 9.2% | 119.8% | 30.8% |
| space4 | | | |
| Population Density | 233.7 | 958.3 | 93.4 |
| Land Area | 3.3 | 33.9 | 3,531,905.4 |
| Water Area | 0.0 | 1.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Henning, MN | Andover, MN | United States |
| Age 0 to 4 | 3.0% | 6.1% | 5.9% |
| Age 5 to 9 | 6.1% | 7.1% | 6.1% |
| Age 10 to 14 | 4.5% | 7.2% | 6.6% |
| Age 15 to 17 | 4.3% | 5.6% | 3.9% |
| Age 18 to 20 | 7.0% | 3.6% | 4.0% |
| Age 21 to 24 | 3.4% | 4.2% | 5.2% |
| Age 25 to 34 | 7.6% | 9.3% | 13.8% |
| Age 35 to 44 | 11.1% | 13.6% | 12.9% |
| Age 45 to 54 | 9.5% | 15.6% | 12.6% |
| Age 55 to 59 | 5.0% | 8.6% | 6.7% |
| Age 60 to 64 | 3.9% | 5.6% | 6.3% |
| Age 65 to 74 | 12.9% | 8.4% | 9.6% |
| Age 75 to 84 | 13.1% | 3.9% | 4.5% |
| Age 85 and over | 8.8% | 1.2% | 1.9% |
| space1 | | | |
| Race | | | |
| | Henning, MN | Andover, MN | United States |
| White | 86.9% | 88.0% | 59.4% |
| Black | 0.0% | 3.0% | 12.2% |
| Asian | 1.0% | 3.4% | 5.6% |
| Native American | 0.8% | 0.3% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.3% | 0.4% |
| Two or More Races | 5.8% | 2.5% | 3.2% |
| Hispanic | 5.5% | 2.5% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Henning, MN | Andover, MN | United States |
| Married Population | 40.5% | 64.2% | 49.8% |
| Currently Married | 37.6% | 63.4% | 48.0% |
| Married but Separated | 3.0% | 0.8% | 1.8% |
| Single Population | 59.5% | 35.8% | 50.2% |
| Never Married | 28.5% | 25.7% | 33.8% |
| Divorced | 17.3% | 6.6% | 10.8% |
| Widowed | 13.7% | 3.5% | 5.6% |
| space5 | | | |
| Household Size | 2.08 | 3.01 | 2.60 |
| Households | 355 | 10,759 | 124,010,992 |
| Family Households | 167 | 8,987 | 80,755,759 |
| Married couple, w/children | 23.4% | 39.0% | 30.5% |
| Married couple, no children | 45.5% | 47.7% | 42.9% |
| Non Family Households | 188 | 1,772 | 43,255,233 |
| Single householder, w/children | 17.4% | 10.0% | 15.8% |
| Single householder, no children | 13.8% | 3.2% | 10.8% |