| | Montevideo, MN | Benson, MN | United States |
| Population | 5,360 | 3,381 | 329,725,481 |
| Female Population | 48.1% | 48.6% | 50.5% |
| Male Population | 51.9% | 51.4% | 49.5% |
| Median Age | 42.7 | 43.4 | 38.4 |
| space3 | | | |
| Population - 2010 | 5,360 | 3,231 | 309,327,143 |
| Population - 2000 | 5,346 | 3,376 | 285,036,114 |
| Population - 1990 | 5,499 | 3,235 | 251,960,433 |
| Pop. 2000 to Now | -6.0% | -11.2% | 15.6% |
| Pop. 1990 to Now | -8.6% | -7.3% | 30.8% |
| space4 | | | |
| Population Density | 1,145.3 | 1,068.9 | 93.4 |
| Land Area | 4.7 | 3.2 | 3,531,905.4 |
| Water Area | 0.1 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Montevideo, MN | Benson, MN | United States |
| Age 0 to 4 | 5.3% | 6.4% | 5.9% |
| Age 5 to 9 | 4.4% | 5.0% | 6.1% |
| Age 10 to 14 | 8.6% | 7.6% | 6.6% |
| Age 15 to 17 | 3.2% | 4.6% | 3.9% |
| Age 18 to 20 | 1.7% | 4.1% | 4.0% |
| Age 21 to 24 | 6.0% | 1.2% | 5.2% |
| Age 25 to 34 | 13.5% | 11.1% | 13.8% |
| Age 35 to 44 | 11.2% | 13.2% | 12.9% |
| Age 45 to 54 | 10.7% | 11.0% | 12.6% |
| Age 55 to 59 | 9.5% | 5.7% | 6.7% |
| Age 60 to 64 | 5.6% | 6.1% | 6.3% |
| Age 65 to 74 | 9.5% | 12.1% | 9.6% |
| Age 75 to 84 | 5.8% | 7.1% | 4.5% |
| Age 85 and over | 5.0% | 4.8% | 1.9% |
| space1 | | | |
| Race | | | |
| | Montevideo, MN | Benson, MN | United States |
| White | 83.1% | 92.7% | 59.4% |
| Black | 2.3% | 1.7% | 12.2% |
| Asian | 2.0% | 1.1% | 5.6% |
| Native American | 1.3% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.3% | 0.0% | 0.4% |
| Two or More Races | 0.3% | 1.4% | 3.2% |
| Hispanic | 10.7% | 3.1% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Montevideo, MN | Benson, MN | United States |
| Married Population | 47.2% | 46.7% | 49.8% |
| Currently Married | 45.6% | 44.7% | 48.0% |
| Married but Separated | 1.6% | 2.0% | 1.8% |
| Single Population | 52.8% | 53.3% | 50.2% |
| Never Married | 29.5% | 25.5% | 33.8% |
| Divorced | 14.1% | 18.0% | 10.8% |
| Widowed | 9.2% | 9.8% | 5.6% |
| space5 | | | |
| Household Size | 2.21 | 2.16 | 2.60 |
| Households | 2,347 | 1,521 | 124,010,992 |
| Family Households | 1,356 | 913 | 80,755,759 |
| Married couple, w/children | 23.0% | 23.3% | 30.5% |
| Married couple, no children | 46.5% | 42.4% | 42.9% |
| Non Family Households | 991 | 608 | 43,255,233 |
| Single householder, w/children | 23.0% | 23.9% | 15.8% |
| Single householder, no children | 7.5% | 10.4% | 10.8% |