| | Shenandoah, PA | Flora, IL | United States |
| Population | 4,332 | 4,798 | 329,725,481 |
| Female Population | 46.8% | 53.9% | 50.5% |
| Male Population | 53.2% | 46.1% | 49.5% |
| Median Age | 32.9 | 46.7 | 38.4 |
| space3 | | | |
| Population - 2010 | 5,070 | 5,069 | 309,327,143 |
| Population - 2000 | 5,624 | 5,086 | 285,036,114 |
| Population - 1990 | 6,221 | 5,054 | 251,960,433 |
| Pop. 2000 to Now | -15.8% | -5.0% | 15.6% |
| Pop. 1990 to Now | -23.8% | -4.4% | 30.8% |
| space4 | | | |
| Population Density | 2,867.0 | 1,023.0 | 93.4 |
| Land Area | 1.5 | 4.7 | 3,531,905.4 |
| Water Area | 0.1 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Shenandoah, PA | Flora, IL | United States |
| Age 0 to 4 | 6.0% | 1.5% | 5.9% |
| Age 5 to 9 | 10.0% | 5.6% | 6.1% |
| Age 10 to 14 | 10.7% | 6.1% | 6.6% |
| Age 15 to 17 | 4.9% | 4.2% | 3.9% |
| Age 18 to 20 | 4.1% | 4.8% | 4.0% |
| Age 21 to 24 | 6.6% | 5.3% | 5.2% |
| Age 25 to 34 | 8.9% | 10.7% | 13.8% |
| Age 35 to 44 | 10.7% | 11.0% | 12.9% |
| Age 45 to 54 | 10.8% | 11.8% | 12.6% |
| Age 55 to 59 | 4.2% | 7.6% | 6.7% |
| Age 60 to 64 | 6.7% | 10.1% | 6.3% |
| Age 65 to 74 | 8.0% | 9.6% | 9.6% |
| Age 75 to 84 | 3.7% | 6.3% | 4.5% |
| Age 85 and over | 4.6% | 5.6% | 1.9% |
| space1 | | | |
| Race | | | |
| | Shenandoah, PA | Flora, IL | United States |
| White | 59.4% | 93.7% | 59.4% |
| Black | 2.4% | 0.4% | 12.2% |
| Asian | 0.0% | 0.3% | 5.6% |
| Native American | 0.0% | 1.3% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.9% | 4.2% | 3.2% |
| Hispanic | 36.3% | 0.1% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Shenandoah, PA | Flora, IL | United States |
| Married Population | 33.2% | 39.1% | 49.8% |
| Currently Married | 32.1% | 37.7% | 48.0% |
| Married but Separated | 1.1% | 1.3% | 1.8% |
| Single Population | 66.8% | 60.9% | 50.2% |
| Never Married | 48.7% | 27.0% | 33.8% |
| Divorced | 9.0% | 22.4% | 10.8% |
| Widowed | 9.1% | 11.6% | 5.6% |
| space5 | | | |
| Household Size | 2.64 | 2.15 | 2.60 |
| Households | 1,578 | 2,143 | 124,010,992 |
| Family Households | 945 | 1,119 | 80,755,759 |
| Married couple, w/children | 18.2% | 14.9% | 30.5% |
| Married couple, no children | 30.1% | 55.0% | 42.9% |
| Non Family Households | 633 | 1,024 | 43,255,233 |
| Single householder, w/children | 35.2% | 21.2% | 15.8% |
| Single householder, no children | 16.5% | 8.8% | 10.8% |