| | Carbondale, CO | Valley City, ND | United States |
| Population | 6,464 | 6,586 | 329,725,481 |
| Female Population | 41.4% | 49.9% | 50.5% |
| Male Population | 58.6% | 50.1% | 49.5% |
| Median Age | 42 | 40.7 | 38.4 |
| space3 | | | |
| Population - 2010 | 6,419 | 6,633 | 309,327,143 |
| Population - 2000 | 5,196 | 6,826 | 285,036,114 |
| Population - 1990 | 3,199 | 7,163 | 251,960,433 |
| Pop. 2000 to Now | 29.5% | -7.7% | 15.6% |
| Pop. 1990 to Now | 110.4% | -12.1% | 30.8% |
| space4 | | | |
| Population Density | 3,118.2 | 1,595.8 | 93.4 |
| Land Area | 2.1 | 4.1 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Carbondale, CO | Valley City, ND | United States |
| Age 0 to 4 | 2.5% | 5.4% | 5.9% |
| Age 5 to 9 | 7.2% | 6.0% | 6.1% |
| Age 10 to 14 | 5.6% | 5.3% | 6.6% |
| Age 15 to 17 | 3.5% | 4.4% | 3.9% |
| Age 18 to 20 | 1.1% | 7.5% | 4.0% |
| Age 21 to 24 | 1.8% | 6.6% | 5.2% |
| Age 25 to 34 | 13.3% | 10.1% | 13.8% |
| Age 35 to 44 | 18.5% | 11.9% | 12.9% |
| Age 45 to 54 | 17.7% | 11.3% | 12.6% |
| Age 55 to 59 | 5.8% | 5.0% | 6.7% |
| Age 60 to 64 | 7.9% | 6.2% | 6.3% |
| Age 65 to 74 | 11.3% | 8.5% | 9.6% |
| Age 75 to 84 | 1.8% | 8.4% | 4.5% |
| Age 85 and over | 1.9% | 3.5% | 1.9% |
| space1 | | | |
| Race | | | |
| | Carbondale, CO | Valley City, ND | United States |
| White | 69.6% | 87.1% | 59.4% |
| Black | 0.3% | 2.7% | 12.2% |
| Asian | 1.1% | 1.9% | 5.6% |
| Native American | 0.6% | 1.2% | 0.6% |
| Hawaiian, Pacific Islander | 0.2% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 2.9% | 3.4% | 3.2% |
| Hispanic | 25.2% | 3.7% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Carbondale, CO | Valley City, ND | United States |
| Married Population | 54.3% | 41.6% | 49.8% |
| Currently Married | 54.2% | 41.4% | 48.0% |
| Married but Separated | 0.1% | 0.3% | 1.8% |
| Single Population | 45.7% | 58.4% | 50.2% |
| Never Married | 26.0% | 38.0% | 33.8% |
| Divorced | 14.5% | 10.8% | 10.8% |
| Widowed | 5.2% | 9.5% | 5.6% |
| space5 | | | |
| Household Size | 2.41 | 2.05 | 2.60 |
| Households | 2,633 | 2,959 | 124,010,992 |
| Family Households | 1,515 | 1,330 | 80,755,759 |
| Married couple, w/children | 36.6% | 34.5% | 30.5% |
| Married couple, no children | 48.3% | 45.4% | 42.9% |
| Non Family Households | 1,118 | 1,629 | 43,255,233 |
| Single householder, w/children | 11.1% | 14.9% | 15.8% |
| Single householder, no children | 4.0% | 5.2% | 10.8% |