| | Bowling Green, KY | Boaz, AL | United States |
| Population | 71,422 | 10,091 | 329,725,481 |
| Female Population | 51.9% | 50.6% | 50.5% |
| Male Population | 48.1% | 49.4% | 49.5% |
| Median Age | 27.7 | 36.1 | 38.4 |
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| Population - 2010 | 59,731 | 9,458 | 309,327,143 |
| Population - 2000 | 49,296 | 7,411 | 285,036,114 |
| Population - 1990 | 40,641 | 6,928 | 251,960,433 |
| Pop. 2000 to Now | 43.3% | 31.0% | 15.6% |
| Pop. 1990 to Now | 73.8% | 40.1% | 30.8% |
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| Population Density | 1,843.5 | 693.5 | 93.4 |
| Land Area | 38.7 | 14.6 | 3,531,905.4 |
| Water Area | 0.3 | 0.1 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Bowling Green, KY | Boaz, AL | United States |
| Age 0 to 4 | 6.8% | 11.3% | 5.9% |
| Age 5 to 9 | 6.1% | 5.7% | 6.1% |
| Age 10 to 14 | 5.2% | 6.7% | 6.6% |
| Age 15 to 17 | 3.2% | 5.7% | 3.9% |
| Age 18 to 20 | 11.1% | 2.2% | 4.0% |
| Age 21 to 24 | 12.5% | 6.4% | 5.2% |
| Age 25 to 34 | 15.7% | 10.2% | 13.8% |
| Age 35 to 44 | 11.3% | 13.8% | 12.9% |
| Age 45 to 54 | 8.4% | 11.4% | 12.6% |
| Age 55 to 59 | 4.2% | 6.7% | 6.7% |
| Age 60 to 64 | 4.4% | 4.4% | 6.3% |
| Age 65 to 74 | 6.9% | 9.1% | 9.6% |
| Age 75 to 84 | 3.1% | 4.1% | 4.5% |
| Age 85 and over | 1.2% | 2.4% | 1.9% |
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| Race | | | |
| | Bowling Green, KY | Boaz, AL | United States |
| White | 67.6% | 83.7% | 59.4% |
| Black | 12.4% | 3.5% | 12.2% |
| Asian | 6.4% | 0.0% | 5.6% |
| Native American | 0.2% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.8% | 0.0% | 0.2% |
| Other | 0.1% | 0.0% | 0.4% |
| Two or More Races | 4.2% | 0.8% | 3.2% |
| Hispanic | 8.3% | 12.0% | 18.4% |
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| Marriage & Family | | | |
| | Bowling Green, KY | Boaz, AL | United States |
| Married Population | 36.7% | 47.2% | 49.8% |
| Currently Married | 34.4% | 45.9% | 48.0% |
| Married but Separated | 2.4% | 1.4% | 1.8% |
| Single Population | 63.3% | 52.8% | 50.2% |
| Never Married | 46.9% | 29.6% | 33.8% |
| Divorced | 11.5% | 13.2% | 10.8% |
| Widowed | 4.8% | 10.0% | 5.6% |
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| Household Size | 2.34 | 2.59 | 2.60 |
| Households | 27,602 | 3,820 | 124,010,992 |
| Family Households | 15,180 | 2,326 | 80,755,759 |
| Married couple, w/children | 28.7% | 37.4% | 30.5% |
| Married couple, no children | 32.3% | 32.0% | 42.9% |
| Non Family Households | 12,422 | 1,494 | 43,255,233 |
| Single householder, w/children | 26.6% | 19.3% | 15.8% |
| Single householder, no children | 12.4% | 11.2% | 10.8% |