| | Sallisaw, OK | Poteau, OK | United States |
| Population | 8,503 | 8,741 | 329,725,481 |
| Female Population | 49.9% | 49.4% | 50.5% |
| Male Population | 50.1% | 50.6% | 49.5% |
| Median Age | 35.1 | 35 | 38.4 |
| space3 | | | |
| Population - 2010 | 8,952 | 8,556 | 309,327,143 |
| Population - 2000 | 7,989 | 7,939 | 285,036,114 |
| Population - 1990 | 7,122 | 7,210 | 251,960,433 |
| Pop. 2000 to Now | 5.8% | 12.2% | 15.6% |
| Pop. 1990 to Now | 18.7% | 23.5% | 30.8% |
| space4 | | | |
| Population Density | 608.1 | 289.9 | 93.4 |
| Land Area | 14.0 | 30.2 | 3,531,905.4 |
| Water Area | 0.2 | 2.5 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Sallisaw, OK | Poteau, OK | United States |
| Age 0 to 4 | 8.6% | 6.8% | 5.9% |
| Age 5 to 9 | 8.1% | 7.1% | 6.1% |
| Age 10 to 14 | 8.0% | 6.9% | 6.6% |
| Age 15 to 17 | 4.1% | 4.1% | 3.9% |
| Age 18 to 20 | 3.1% | 4.5% | 4.0% |
| Age 21 to 24 | 4.4% | 4.2% | 5.2% |
| Age 25 to 34 | 13.6% | 16.5% | 13.8% |
| Age 35 to 44 | 11.5% | 11.9% | 12.9% |
| Age 45 to 54 | 11.2% | 11.7% | 12.6% |
| Age 55 to 59 | 6.7% | 4.8% | 6.7% |
| Age 60 to 64 | 4.5% | 5.9% | 6.3% |
| Age 65 to 74 | 8.5% | 7.5% | 9.6% |
| Age 75 to 84 | 6.5% | 5.8% | 4.5% |
| Age 85 and over | 1.2% | 2.5% | 1.9% |
| space1 | | | |
| Race | | | |
| | Sallisaw, OK | Poteau, OK | United States |
| White | 61.0% | 66.0% | 59.4% |
| Black | 1.6% | 1.0% | 12.2% |
| Asian | 0.6% | 0.4% | 5.6% |
| Native American | 19.7% | 8.8% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.3% | 0.0% | 0.4% |
| Two or More Races | 9.1% | 8.3% | 3.2% |
| Hispanic | 7.8% | 15.4% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Sallisaw, OK | Poteau, OK | United States |
| Married Population | 48.1% | 42.5% | 49.8% |
| Currently Married | 45.8% | 39.7% | 48.0% |
| Married but Separated | 2.3% | 2.7% | 1.8% |
| Single Population | 51.9% | 57.5% | 50.2% |
| Never Married | 26.1% | 30.1% | 33.8% |
| Divorced | 19.1% | 16.7% | 10.8% |
| Widowed | 6.7% | 10.7% | 5.6% |
| space5 | | | |
| Household Size | 2.61 | 2.70 | 2.60 |
| Households | 3,188 | 3,121 | 124,010,992 |
| Family Households | 2,136 | 2,055 | 80,755,759 |
| Married couple, w/children | 31.2% | 27.0% | 30.5% |
| Married couple, no children | 31.9% | 31.1% | 42.9% |
| Non Family Households | 1,052 | 1,066 | 43,255,233 |
| Single householder, w/children | 27.2% | 29.7% | 15.8% |
| Single householder, no children | 9.7% | 12.2% | 10.8% |