| | Nashville, IL | Dana, IN | United States |
| Population | 3,108 | 616 | 329,725,481 |
| Female Population | 53.7% | 53.1% | 50.5% |
| Male Population | 46.3% | 46.9% | 49.5% |
| Median Age | 43.6 | 36.7 | 38.4 |
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| Population - 2010 | 3,257 | 604 | 309,327,143 |
| Population - 2000 | 3,147 | 662 | 285,036,114 |
| Population - 1990 | 3,202 | 612 | 251,960,433 |
| Pop. 2000 to Now | -5.2% | -14.8% | 15.6% |
| Pop. 1990 to Now | -6.8% | -7.8% | 30.8% |
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| Population Density | 1,174.6 | 2,109.6 | 93.4 |
| Land Area | 2.6 | 0.3 | 3,531,905.4 |
| Water Area | 0.1 | 0.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Nashville, IL | Dana, IN | United States |
| Age 0 to 4 | 4.7% | 3.1% | 5.9% |
| Age 5 to 9 | 6.9% | 3.6% | 6.1% |
| Age 10 to 14 | 5.0% | 3.2% | 6.6% |
| Age 15 to 17 | 2.8% | 7.6% | 3.9% |
| Age 18 to 20 | 3.1% | 1.9% | 4.0% |
| Age 21 to 24 | 4.0% | 9.3% | 5.2% |
| Age 25 to 34 | 14.5% | 17.9% | 13.8% |
| Age 35 to 44 | 12.0% | 9.6% | 12.9% |
| Age 45 to 54 | 11.5% | 7.5% | 12.6% |
| Age 55 to 59 | 5.5% | 10.7% | 6.7% |
| Age 60 to 64 | 7.4% | 9.4% | 6.3% |
| Age 65 to 74 | 9.6% | 7.3% | 9.6% |
| Age 75 to 84 | 10.1% | 6.7% | 4.5% |
| Age 85 and over | 2.8% | 2.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | Nashville, IL | Dana, IN | United States |
| White | 98.9% | 96.1% | 59.4% |
| Black | 0.8% | 0.0% | 12.2% |
| Asian | 0.2% | 0.0% | 5.6% |
| Native American | 0.0% | 0.3% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.0% | 3.2% | 3.2% |
| Hispanic | 0.1% | 0.3% | 18.4% |
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| Marriage & Family | | | |
| | Nashville, IL | Dana, IN | United States |
| Married Population | 46.8% | 53.5% | 49.8% |
| Currently Married | 44.9% | 50.3% | 48.0% |
| Married but Separated | 1.9% | 3.2% | 1.8% |
| Single Population | 53.2% | 46.5% | 50.2% |
| Never Married | 26.6% | 22.7% | 33.8% |
| Divorced | 17.3% | 12.4% | 10.8% |
| Widowed | 9.3% | 11.4% | 5.6% |
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| Household Size | 2.24 | 2.18 | 2.60 |
| Households | 1,320 | 283 | 124,010,992 |
| Family Households | 816 | 177 | 80,755,759 |
| Married couple, w/children | 29.4% | 10.7% | 30.5% |
| Married couple, no children | 37.9% | 68.9% | 42.9% |
| Non Family Households | 504 | 106 | 43,255,233 |
| Single householder, w/children | 24.5% | 14.1% | 15.8% |
| Single householder, no children | 8.2% | 6.2% | 10.8% |