| | Canton, MS | McComb, MS | United States |
| Population | 10,955 | 12,400 | 329,725,481 |
| Female Population | 49.2% | 57.0% | 50.5% |
| Male Population | 50.8% | 43.0% | 49.5% |
| Median Age | 34.2 | 37.2 | 38.4 |
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| Population - 2010 | 11,786 | 12,763 | 309,327,143 |
| Population - 2000 | 12,911 | 13,337 | 285,036,114 |
| Population - 1990 | 10,062 | 11,591 | 251,960,433 |
| Pop. 2000 to Now | -8.6% | -3.9% | 15.6% |
| Pop. 1990 to Now | 17.3% | 10.5% | 30.8% |
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| Population Density | 517.9 | 1,071.1 | 93.4 |
| Land Area | 21.2 | 11.6 | 3,531,905.4 |
| Water Area | 0.3 | 0.1 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Canton, MS | McComb, MS | United States |
| Age 0 to 4 | 4.5% | 6.6% | 5.9% |
| Age 5 to 9 | 6.5% | 10.1% | 6.1% |
| Age 10 to 14 | 8.2% | 5.7% | 6.6% |
| Age 15 to 17 | 3.7% | 3.7% | 3.9% |
| Age 18 to 20 | 3.6% | 5.2% | 4.0% |
| Age 21 to 24 | 7.3% | 3.1% | 5.2% |
| Age 25 to 34 | 18.9% | 11.6% | 13.8% |
| Age 35 to 44 | 12.5% | 11.4% | 12.9% |
| Age 45 to 54 | 7.9% | 11.1% | 12.6% |
| Age 55 to 59 | 6.0% | 6.0% | 6.7% |
| Age 60 to 64 | 6.3% | 7.2% | 6.3% |
| Age 65 to 74 | 8.8% | 10.4% | 9.6% |
| Age 75 to 84 | 4.1% | 5.7% | 4.5% |
| Age 85 and over | 1.7% | 2.2% | 1.9% |
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| Race | | | |
| | Canton, MS | McComb, MS | United States |
| White | 19.7% | 22.7% | 59.4% |
| Black | 73.1% | 75.0% | 12.2% |
| Asian | 0.1% | 0.4% | 5.6% |
| Native American | 0.1% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.4% | 0.1% | 3.2% |
| Hispanic | 6.6% | 1.7% | 18.4% |
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| Marriage & Family | | | |
| | Canton, MS | McComb, MS | United States |
| Married Population | 27.1% | 34.5% | 49.8% |
| Currently Married | 25.5% | 30.4% | 48.0% |
| Married but Separated | 1.6% | 4.1% | 1.8% |
| Single Population | 72.9% | 65.5% | 50.2% |
| Never Married | 54.0% | 39.6% | 33.8% |
| Divorced | 12.0% | 16.3% | 10.8% |
| Widowed | 6.9% | 9.5% | 5.6% |
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| Household Size | 2.22 | 2.26 | 2.60 |
| Households | 4,588 | 5,340 | 124,010,992 |
| Family Households | 2,427 | 2,314 | 80,755,759 |
| Married couple, w/children | 13.0% | 16.6% | 30.5% |
| Married couple, no children | 30.4% | 36.5% | 42.9% |
| Non Family Households | 2,161 | 3,026 | 43,255,233 |
| Single householder, w/children | 33.1% | 26.6% | 15.8% |
| Single householder, no children | 23.5% | 20.3% | 10.8% |