| | Mounds, OK | Lowell, AR | United States |
| Population | 1,039 | 9,630 | 329,725,481 |
| Female Population | 49.7% | 50.4% | 50.5% |
| Male Population | 50.3% | 49.6% | 49.5% |
| Median Age | 33.5 | 35.2 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,157 | 7,359 | 309,327,143 |
| Population - 2000 | 1,153 | 5,013 | 285,036,114 |
| Population - 1990 | 980 | 1,224 | 251,960,433 |
| Pop. 2000 to Now | 7.9% | 97.0% | 15.6% |
| Pop. 1990 to Now | 26.9% | 706.9% | 30.8% |
| space4 | | | |
| Population Density | 479.2 | 1,043.6 | 93.4 |
| Land Area | 2.2 | 9.2 | 3,531,905.4 |
| Water Area | 0.1 | 0.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Mounds, OK | Lowell, AR | United States |
| Age 0 to 4 | 8.7% | 8.7% | 5.9% |
| Age 5 to 9 | 5.6% | 7.9% | 6.1% |
| Age 10 to 14 | 7.5% | 7.1% | 6.6% |
| Age 15 to 17 | 3.7% | 5.9% | 3.9% |
| Age 18 to 20 | 4.5% | 3.9% | 4.0% |
| Age 21 to 24 | 6.5% | 3.8% | 5.2% |
| Age 25 to 34 | 13.7% | 12.2% | 13.8% |
| Age 35 to 44 | 13.4% | 16.4% | 12.9% |
| Age 45 to 54 | 9.5% | 12.3% | 12.6% |
| Age 55 to 59 | 9.2% | 4.6% | 6.7% |
| Age 60 to 64 | 5.0% | 4.3% | 6.3% |
| Age 65 to 74 | 8.0% | 8.3% | 9.6% |
| Age 75 to 84 | 4.4% | 2.3% | 4.5% |
| Age 85 and over | 0.3% | 2.2% | 1.9% |
| space1 | | | |
| Race | | | |
| | Mounds, OK | Lowell, AR | United States |
| White | 76.4% | 60.1% | 59.4% |
| Black | 1.3% | 0.5% | 12.2% |
| Asian | 0.3% | 2.6% | 5.6% |
| Native American | 13.8% | 0.4% | 0.6% |
| Hawaiian, Pacific Islander | 0.4% | 0.4% | 0.2% |
| Other | 0.0% | 2.4% | 0.4% |
| Two or More Races | 7.5% | 6.3% | 3.2% |
| Hispanic | 0.3% | 27.2% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Mounds, OK | Lowell, AR | United States |
| Married Population | 46.6% | 57.2% | 49.8% |
| Currently Married | 45.5% | 55.4% | 48.0% |
| Married but Separated | 1.1% | 1.8% | 1.8% |
| Single Population | 53.4% | 42.8% | 50.2% |
| Never Married | 28.7% | 25.2% | 33.8% |
| Divorced | 20.0% | 12.1% | 10.8% |
| Widowed | 4.7% | 5.5% | 5.6% |
| space5 | | | |
| Household Size | 2.66 | 2.87 | 2.60 |
| Households | 390 | 3,354 | 124,010,992 |
| Family Households | 264 | 2,447 | 80,755,759 |
| Married couple, w/children | 31.1% | 41.9% | 30.5% |
| Married couple, no children | 32.6% | 39.1% | 42.9% |
| Non Family Households | 126 | 907 | 43,255,233 |
| Single householder, w/children | 23.9% | 11.9% | 15.8% |
| Single householder, no children | 12.5% | 7.2% | 10.8% |