| | McAllen, TX | Cincinnati, OH | United States |
| Population | 141,941 | 308,664 | 329,725,481 |
| Female Population | 50.6% | 51.6% | 50.5% |
| Male Population | 49.4% | 48.4% | 49.5% |
| Median Age | 33 | 32.7 | 38.4 |
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| Population - 2010 | 132,104 | 297,061 | 309,327,143 |
| Population - 2000 | 106,414 | 331,285 | 285,036,114 |
| Population - 1990 | 84,021 | 364,040 | 251,960,433 |
| Pop. 2000 to Now | 35.1% | -8.1% | 15.6% |
| Pop. 1990 to Now | 71.1% | -16.3% | 30.8% |
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| Population Density | 2,159.3 | 3,961.6 | 93.4 |
| Land Area | 65.7 | 77.9 | 3,531,905.4 |
| Water Area | 0.5 | 1.6 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | McAllen, TX | Cincinnati, OH | United States |
| Age 0 to 4 | 7.2% | 6.9% | 5.9% |
| Age 5 to 9 | 7.9% | 5.4% | 6.1% |
| Age 10 to 14 | 8.5% | 5.9% | 6.6% |
| Age 15 to 17 | 5.4% | 3.3% | 3.9% |
| Age 18 to 20 | 4.1% | 6.4% | 4.0% |
| Age 21 to 24 | 5.5% | 7.2% | 5.2% |
| Age 25 to 34 | 14.1% | 18.8% | 13.8% |
| Age 35 to 44 | 13.8% | 12.0% | 12.9% |
| Age 45 to 54 | 11.8% | 10.5% | 12.6% |
| Age 55 to 59 | 4.6% | 6.0% | 6.7% |
| Age 60 to 64 | 4.2% | 5.6% | 6.3% |
| Age 65 to 74 | 7.6% | 7.5% | 9.6% |
| Age 75 to 84 | 3.9% | 3.1% | 4.5% |
| Age 85 and over | 1.3% | 1.6% | 1.9% |
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| Race | | | |
| | McAllen, TX | Cincinnati, OH | United States |
| White | 8.9% | 48.6% | 59.4% |
| Black | 0.7% | 40.0% | 12.2% |
| Asian | 2.7% | 2.4% | 5.6% |
| Native American | 0.2% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.8% | 0.4% | 0.4% |
| Two or More Races | 0.4% | 4.1% | 3.2% |
| Hispanic | 86.2% | 4.4% | 18.4% |
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| Marriage & Family | | | |
| | McAllen, TX | Cincinnati, OH | United States |
| Married Population | 50.1% | 31.3% | 49.8% |
| Currently Married | 47.6% | 29.1% | 48.0% |
| Married but Separated | 2.5% | 2.2% | 1.8% |
| Single Population | 49.9% | 68.7% | 50.2% |
| Never Married | 34.8% | 52.6% | 33.8% |
| Divorced | 9.6% | 11.7% | 10.8% |
| Widowed | 5.5% | 4.5% | 5.6% |
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| Household Size | 3.02 | 2.11 | 2.60 |
| Households | 46,679 | 139,791 | 124,010,992 |
| Family Households | 35,095 | 62,652 | 80,755,759 |
| Married couple, w/children | 33.5% | 20.5% | 30.5% |
| Married couple, no children | 31.5% | 33.5% | 42.9% |
| Non Family Households | 11,584 | 77,139 | 43,255,233 |
| Single householder, w/children | 21.0% | 31.0% | 15.8% |
| Single householder, no children | 14.0% | 15.0% | 10.8% |