| | Big Falls, MN | Miami, OK | United States |
| Population | 173 | 12,997 | 329,725,481 |
| Female Population | 53.8% | 51.1% | 50.5% |
| Male Population | 46.2% | 48.9% | 49.5% |
| Median Age | 62.6 | 33 | 38.4 |
| space3 | | | |
| Population - 2010 | 229 | 13,583 | 309,327,143 |
| Population - 2000 | 264 | 13,704 | 285,036,114 |
| Population - 1990 | 341 | 13,142 | 251,960,433 |
| Pop. 2000 to Now | -22.4% | -5.5% | 15.6% |
| Pop. 1990 to Now | -39.9% | -1.5% | 30.8% |
| space4 | | | |
| Population Density | 28.6 | 1,199.2 | 93.4 |
| Land Area | 6.0 | 10.8 | 3,531,905.4 |
| Water Area | 0.0 | 0.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Big Falls, MN | Miami, OK | United States |
| Age 0 to 4 | 3.5% | 8.1% | 5.9% |
| Age 5 to 9 | 1.2% | 7.9% | 6.1% |
| Age 10 to 14 | 0.6% | 6.7% | 6.6% |
| Age 15 to 17 | 0.6% | 3.3% | 3.9% |
| Age 18 to 20 | 0.0% | 7.0% | 4.0% |
| Age 21 to 24 | 0.0% | 5.6% | 5.2% |
| Age 25 to 34 | 3.5% | 14.1% | 13.8% |
| Age 35 to 44 | 2.3% | 10.4% | 12.9% |
| Age 45 to 54 | 19.7% | 10.3% | 12.6% |
| Age 55 to 59 | 11.6% | 5.7% | 6.7% |
| Age 60 to 64 | 19.1% | 5.9% | 6.3% |
| Age 65 to 74 | 28.9% | 8.1% | 9.6% |
| Age 75 to 84 | 3.5% | 5.0% | 4.5% |
| Age 85 and over | 5.8% | 1.9% | 1.9% |
| space1 | | | |
| Race | | | |
| | Big Falls, MN | Miami, OK | United States |
| White | 90.8% | 62.4% | 59.4% |
| Black | 0.0% | 2.1% | 12.2% |
| Asian | 0.0% | 0.6% | 5.6% |
| Native American | 1.7% | 18.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 1.2% | 0.2% |
| Other | 0.0% | 0.1% | 0.4% |
| Two or More Races | 7.5% | 9.7% | 3.2% |
| Hispanic | 0.0% | 5.8% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Big Falls, MN | Miami, OK | United States |
| Married Population | 49.4% | 42.9% | 49.8% |
| Currently Married | 45.7% | 39.8% | 48.0% |
| Married but Separated | 3.7% | 3.1% | 1.8% |
| Single Population | 50.6% | 57.1% | 50.2% |
| Never Married | 4.3% | 33.5% | 33.8% |
| Divorced | 32.3% | 15.5% | 10.8% |
| Widowed | 14.0% | 8.1% | 5.6% |
| space5 | | | |
| Household Size | 1.53 | 2.45 | 2.60 |
| Households | 113 | 4,945 | 124,010,992 |
| Family Households | 42 | 3,016 | 80,755,759 |
| Married couple, w/children | 7.1% | 26.4% | 30.5% |
| Married couple, no children | 64.3% | 35.4% | 42.9% |
| Non Family Households | 71 | 1,929 | 43,255,233 |
| Single householder, w/children | 14.3% | 27.4% | 15.8% |
| Single householder, no children | 14.3% | 10.8% | 10.8% |