| | Dodge City, KS | Carroll, IA | United States |
| Population | 27,899 | 10,261 | 329,725,481 |
| Female Population | 48.9% | 53.0% | 50.5% |
| Male Population | 51.1% | 47.0% | 49.5% |
| Median Age | 29.7 | 43.2 | 38.4 |
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| Population - 2010 | 27,453 | 10,135 | 309,327,143 |
| Population - 2000 | 25,176 | 10,106 | 285,036,114 |
| Population - 1990 | 21,129 | 9,579 | 251,960,433 |
| Pop. 2000 to Now | 6.0% | -4.1% | 15.6% |
| Pop. 1990 to Now | 26.3% | 1.2% | 30.8% |
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| Population Density | 1,913.4 | 1,790.8 | 93.4 |
| Land Area | 14.6 | 5.7 | 3,531,905.4 |
| Water Area | 0.1 | 0.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Dodge City, KS | Carroll, IA | United States |
| Age 0 to 4 | 9.3% | 5.1% | 5.9% |
| Age 5 to 9 | 9.1% | 7.8% | 6.1% |
| Age 10 to 14 | 8.9% | 6.5% | 6.6% |
| Age 15 to 17 | 4.9% | 3.6% | 3.9% |
| Age 18 to 20 | 4.6% | 2.6% | 4.0% |
| Age 21 to 24 | 5.8% | 4.0% | 5.2% |
| Age 25 to 34 | 14.1% | 11.4% | 13.8% |
| Age 35 to 44 | 12.5% | 11.1% | 12.9% |
| Age 45 to 54 | 11.6% | 12.4% | 12.6% |
| Age 55 to 59 | 6.0% | 6.3% | 6.7% |
| Age 60 to 64 | 4.5% | 7.6% | 6.3% |
| Age 65 to 74 | 4.9% | 10.1% | 9.6% |
| Age 75 to 84 | 2.7% | 7.0% | 4.5% |
| Age 85 and over | 1.1% | 4.5% | 1.9% |
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| Race | | | |
| | Dodge City, KS | Carroll, IA | United States |
| White | 29.7% | 93.4% | 59.4% |
| Black | 2.2% | 0.5% | 12.2% |
| Asian | 1.4% | 0.6% | 5.6% |
| Native American | 0.1% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.1% | 0.0% | 0.2% |
| Other | 0.1% | 0.0% | 0.4% |
| Two or More Races | 1.8% | 1.8% | 3.2% |
| Hispanic | 64.6% | 3.8% | 18.4% |
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| Marriage & Family | | | |
| | Dodge City, KS | Carroll, IA | United States |
| Married Population | 51.1% | 48.1% | 49.8% |
| Currently Married | 49.2% | 48.0% | 48.0% |
| Married but Separated | 1.9% | 0.2% | 1.8% |
| Single Population | 48.9% | 51.9% | 50.2% |
| Never Married | 34.0% | 30.4% | 33.8% |
| Divorced | 10.3% | 10.8% | 10.8% |
| Widowed | 4.7% | 10.6% | 5.6% |
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| Household Size | 3.09 | 2.19 | 2.60 |
| Households | 8,849 | 4,562 | 124,010,992 |
| Family Households | 6,249 | 2,602 | 80,755,759 |
| Married couple, w/children | 42.5% | 25.6% | 30.5% |
| Married couple, no children | 28.2% | 47.7% | 42.9% |
| Non Family Households | 2,600 | 1,960 | 43,255,233 |
| Single householder, w/children | 21.3% | 18.6% | 15.8% |
| Single householder, no children | 7.9% | 8.1% | 10.8% |