| | Maple Lake, MN | Buffalo, MN | United States |
| Population | 2,202 | 16,121 | 329,725,481 |
| Female Population | 50.1% | 50.8% | 50.5% |
| Male Population | 49.9% | 49.2% | 49.5% |
| Median Age | 33.3 | 38.3 | 38.4 |
| space3 | | | |
| Population - 2010 | 2,063 | 15,511 | 309,327,143 |
| Population - 2000 | 1,633 | 10,097 | 285,036,114 |
| Population - 1990 | 1,394 | 6,856 | 251,960,433 |
| Pop. 2000 to Now | 31.6% | 66.9% | 15.6% |
| Pop. 1990 to Now | 54.2% | 145.8% | 30.8% |
| space4 | | | |
| Population Density | 982.2 | 2,226.4 | 93.4 |
| Land Area | 2.2 | 7.2 | 3,531,905.4 |
| Water Area | 0.0 | 1.9 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Maple Lake, MN | Buffalo, MN | United States |
| Age 0 to 4 | 6.8% | 7.3% | 5.9% |
| Age 5 to 9 | 7.6% | 8.1% | 6.1% |
| Age 10 to 14 | 8.8% | 5.6% | 6.6% |
| Age 15 to 17 | 6.6% | 3.8% | 3.9% |
| Age 18 to 20 | 3.2% | 2.8% | 4.0% |
| Age 21 to 24 | 5.5% | 4.0% | 5.2% |
| Age 25 to 34 | 12.8% | 12.8% | 13.8% |
| Age 35 to 44 | 14.7% | 13.1% | 12.9% |
| Age 45 to 54 | 12.3% | 13.3% | 12.6% |
| Age 55 to 59 | 7.7% | 5.9% | 6.7% |
| Age 60 to 64 | 3.6% | 6.8% | 6.3% |
| Age 65 to 74 | 4.9% | 9.2% | 9.6% |
| Age 75 to 84 | 3.6% | 5.4% | 4.5% |
| Age 85 and over | 1.9% | 2.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Maple Lake, MN | Buffalo, MN | United States |
| White | 91.6% | 95.3% | 59.4% |
| Black | 0.1% | 0.2% | 12.2% |
| Asian | 0.2% | 1.4% | 5.6% |
| Native American | 0.4% | 0.2% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 2.2% | 2.0% | 3.2% |
| Hispanic | 5.5% | 0.9% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Maple Lake, MN | Buffalo, MN | United States |
| Married Population | 58.3% | 56.2% | 49.8% |
| Currently Married | 57.4% | 55.8% | 48.0% |
| Married but Separated | 0.9% | 0.4% | 1.8% |
| Single Population | 41.7% | 43.8% | 50.2% |
| Never Married | 27.9% | 27.6% | 33.8% |
| Divorced | 9.0% | 13.3% | 10.8% |
| Widowed | 4.8% | 2.9% | 5.6% |
| space5 | | | |
| Household Size | 2.68 | 2.51 | 2.60 |
| Households | 812 | 6,252 | 124,010,992 |
| Family Households | 557 | 4,239 | 80,755,759 |
| Married couple, w/children | 44.2% | 32.1% | 30.5% |
| Married couple, no children | 38.6% | 48.8% | 42.9% |
| Non Family Households | 255 | 2,013 | 43,255,233 |
| Single householder, w/children | 12.9% | 15.0% | 15.8% |
| Single householder, no children | 4.3% | 4.1% | 10.8% |