| | Fawn Grove, PA | Fallston, MD | United States |
| Population | 469 | 9,696 | 329,725,481 |
| Female Population | 50.1% | 54.4% | 50.5% |
| Male Population | 49.9% | 45.6% | 49.5% |
| Median Age | 50.2 | 44.6 | 38.4 |
| space3 | | | |
| Population - 2010 | 452 | 8,062 | 309,327,143 |
| Population - 2000 | 463 | 8,427 | 285,036,114 |
| Population - 1990 | 489 | 5,730 | 251,960,433 |
| Pop. 2000 to Now | -2.4% | 10.9% | 15.6% |
| Pop. 1990 to Now | -7.6% | 63.0% | 30.8% |
| space4 | | | |
| Population Density | 285.1 | 692.7 | 93.4 |
| Land Area | 1.6 | 14.0 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Fawn Grove, PA | Fallston, MD | United States |
| Age 0 to 4 | 6.2% | 5.3% | 5.9% |
| Age 5 to 9 | 6.8% | 7.7% | 6.1% |
| Age 10 to 14 | 3.2% | 3.3% | 6.6% |
| Age 15 to 17 | 1.9% | 2.9% | 3.9% |
| Age 18 to 20 | 5.8% | 2.3% | 4.0% |
| Age 21 to 24 | 2.8% | 8.6% | 5.2% |
| Age 25 to 34 | 7.2% | 5.6% | 13.8% |
| Age 35 to 44 | 11.5% | 14.9% | 12.9% |
| Age 45 to 54 | 11.1% | 14.2% | 12.6% |
| Age 55 to 59 | 6.8% | 8.4% | 6.7% |
| Age 60 to 64 | 9.2% | 7.3% | 6.3% |
| Age 65 to 74 | 16.4% | 12.4% | 9.6% |
| Age 75 to 84 | 4.3% | 6.3% | 4.5% |
| Age 85 and over | 6.8% | 0.8% | 1.9% |
| space1 | | | |
| Race | | | |
| | Fawn Grove, PA | Fallston, MD | United States |
| White | 89.1% | 87.1% | 59.4% |
| Black | 0.2% | 2.0% | 12.2% |
| Asian | 0.4% | 3.5% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.4% | 0.0% | 0.4% |
| Two or More Races | 0.6% | 1.4% | 3.2% |
| Hispanic | 9.2% | 6.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Fawn Grove, PA | Fallston, MD | United States |
| Married Population | 63.9% | 68.3% | 49.8% |
| Currently Married | 60.8% | 67.0% | 48.0% |
| Married but Separated | 3.1% | 1.2% | 1.8% |
| Single Population | 36.1% | 31.7% | 50.2% |
| Never Married | 21.4% | 22.9% | 33.8% |
| Divorced | 9.4% | 5.8% | 10.8% |
| Widowed | 5.3% | 3.0% | 5.6% |
| space5 | | | |
| Household Size | 2.52 | 2.93 | 2.60 |
| Households | 186 | 3,299 | 124,010,992 |
| Family Households | 138 | 2,866 | 80,755,759 |
| Married couple, w/children | 28.3% | 37.3% | 30.5% |
| Married couple, no children | 53.6% | 53.4% | 42.9% |
| Non Family Households | 48 | 433 | 43,255,233 |
| Single householder, w/children | 8.0% | 0.9% | 15.8% |
| Single householder, no children | 10.1% | 8.3% | 10.8% |