| | Frankfort, IN | Gresham, OR | United States |
| Population | 16,134 | 114,164 | 329,725,481 |
| Female Population | 50.4% | 50.1% | 50.5% |
| Male Population | 49.6% | 49.9% | 49.5% |
| Median Age | 34.9 | 36.8 | 38.4 |
| space3 | | | |
| Population - 2010 | 16,417 | 105,981 | 309,327,143 |
| Population - 2000 | 16,662 | 90,205 | 285,036,114 |
| Population - 1990 | 14,754 | 68,235 | 251,960,433 |
| Pop. 2000 to Now | -5.4% | 22.0% | 15.6% |
| Pop. 1990 to Now | 6.8% | 61.3% | 30.8% |
| space4 | | | |
| Population Density | 2,177.0 | 4,889.0 | 93.4 |
| Land Area | 7.4 | 23.4 | 3,531,905.4 |
| Water Area | 0.0 | 0.2 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Frankfort, IN | Gresham, OR | United States |
| Age 0 to 4 | 6.4% | 6.5% | 5.9% |
| Age 5 to 9 | 9.3% | 5.9% | 6.1% |
| Age 10 to 14 | 6.3% | 7.4% | 6.6% |
| Age 15 to 17 | 5.3% | 3.9% | 3.9% |
| Age 18 to 20 | 4.3% | 3.5% | 4.0% |
| Age 21 to 24 | 4.6% | 5.4% | 5.2% |
| Age 25 to 34 | 13.9% | 14.7% | 13.8% |
| Age 35 to 44 | 12.3% | 13.7% | 12.9% |
| Age 45 to 54 | 11.5% | 12.1% | 12.6% |
| Age 55 to 59 | 6.3% | 6.7% | 6.7% |
| Age 60 to 64 | 5.8% | 6.1% | 6.3% |
| Age 65 to 74 | 7.1% | 8.6% | 9.6% |
| Age 75 to 84 | 4.8% | 3.6% | 4.5% |
| Age 85 and over | 2.0% | 1.7% | 1.9% |
| space1 | | | |
| Race | | | |
| | Frankfort, IN | Gresham, OR | United States |
| White | 70.4% | 63.3% | 59.4% |
| Black | 0.3% | 3.9% | 12.2% |
| Asian | 0.6% | 4.8% | 5.6% |
| Native American | 0.0% | 0.7% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 1.0% | 0.2% |
| Other | 0.1% | 0.1% | 0.4% |
| Two or More Races | 0.7% | 5.4% | 3.2% |
| Hispanic | 28.0% | 20.7% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Frankfort, IN | Gresham, OR | United States |
| Married Population | 44.4% | 47.8% | 49.8% |
| Currently Married | 41.6% | 46.2% | 48.0% |
| Married but Separated | 2.8% | 1.6% | 1.8% |
| Single Population | 55.6% | 52.2% | 50.2% |
| Never Married | 34.6% | 34.6% | 33.8% |
| Divorced | 14.6% | 13.0% | 10.8% |
| Widowed | 6.3% | 4.6% | 5.6% |
| space5 | | | |
| Household Size | 2.62 | 2.69 | 2.60 |
| Households | 6,034 | 41,810 | 124,010,992 |
| Family Households | 3,463 | 27,687 | 80,755,759 |
| Married couple, w/children | 31.8% | 30.9% | 30.5% |
| Married couple, no children | 36.8% | 38.0% | 42.9% |
| Non Family Households | 2,571 | 14,123 | 43,255,233 |
| Single householder, w/children | 19.1% | 19.2% | 15.8% |
| Single householder, no children | 12.3% | 11.9% | 10.8% |