| | Dunseith, ND | Calais, ME | United States |
| Population | 696 | 3,010 | 329,725,481 |
| Female Population | 61.8% | 52.2% | 50.5% |
| Male Population | 38.2% | 47.8% | 49.5% |
| Median Age | 35.9 | 51.2 | 38.4 |
| space3 | | | |
| Population - 2010 | 776 | 3,120 | 309,327,143 |
| Population - 2000 | 739 | 3,447 | 285,036,114 |
| Population - 1990 | 723 | 3,963 | 251,960,433 |
| Pop. 2000 to Now | 3.9% | -12.2% | 15.6% |
| Pop. 1990 to Now | 6.2% | -23.6% | 30.8% |
| space4 | | | |
| Population Density | 694.6 | 87.7 | 93.4 |
| Land Area | 1.0 | 34.3 | 3,531,905.4 |
| Water Area | 0.0 | 5.8 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Dunseith, ND | Calais, ME | United States |
| Age 0 to 4 | 12.1% | 6.5% | 5.9% |
| Age 5 to 9 | 10.9% | 1.9% | 6.1% |
| Age 10 to 14 | 9.3% | 1.6% | 6.6% |
| Age 15 to 17 | 3.9% | 4.0% | 3.9% |
| Age 18 to 20 | 6.5% | 3.8% | 4.0% |
| Age 21 to 24 | 2.7% | 3.7% | 5.2% |
| Age 25 to 34 | 3.0% | 7.4% | 13.8% |
| Age 35 to 44 | 17.8% | 9.8% | 12.9% |
| Age 45 to 54 | 9.1% | 14.1% | 12.6% |
| Age 55 to 59 | 7.5% | 6.1% | 6.7% |
| Age 60 to 64 | 2.4% | 12.2% | 6.3% |
| Age 65 to 74 | 6.3% | 13.6% | 9.6% |
| Age 75 to 84 | 3.2% | 11.1% | 4.5% |
| Age 85 and over | 5.3% | 4.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | Dunseith, ND | Calais, ME | United States |
| White | 23.6% | 96.0% | 59.4% |
| Black | 0.0% | 0.4% | 12.2% |
| Asian | 0.0% | 0.5% | 5.6% |
| Native American | 76.4% | 0.8% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.0% | 1.4% | 3.2% |
| Hispanic | 0.0% | 0.8% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Dunseith, ND | Calais, ME | United States |
| Married Population | 32.3% | 50.7% | 49.8% |
| Currently Married | 29.7% | 49.5% | 48.0% |
| Married but Separated | 2.5% | 1.2% | 1.8% |
| Single Population | 67.7% | 49.3% | 50.2% |
| Never Married | 46.1% | 22.1% | 33.8% |
| Divorced | 17.0% | 16.8% | 10.8% |
| Widowed | 4.7% | 10.5% | 5.6% |
| space5 | | | |
| Household Size | 3.15 | 1.74 | 2.60 |
| Households | 213 | 1,664 | 124,010,992 |
| Family Households | 135 | 928 | 80,755,759 |
| Married couple, w/children | 15.6% | 16.7% | 30.5% |
| Married couple, no children | 34.8% | 57.0% | 42.9% |
| Non Family Households | 78 | 736 | 43,255,233 |
| Single householder, w/children | 38.5% | 21.7% | 15.8% |
| Single householder, no children | 11.1% | 4.6% | 10.8% |