| | Lancaster township, PA | North Providence, RI | United States |
| Population | 18,320 | 33,935 | 329,725,481 |
| Female Population | 54.7% | 54.8% | 50.5% |
| Male Population | 45.3% | 45.2% | 49.5% |
| Median Age | 39.2 | 40.4 | 38.4 |
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| Population - 2010 | 16,252 | 32,198 | 309,327,143 |
| Population - 2000 | 13,944 | 32,411 | 285,036,114 |
| Population - 1990 | 13,187 | 32,090 | 251,960,433 |
| Pop. 2000 to Now | 22.7% | 0.3% | 15.6% |
| Pop. 1990 to Now | 29.7% | 1.3% | 30.8% |
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| Population Density | 3,125.8 | 6,032.9 | 93.4 |
| Land Area | 5.9 | 5.6 | 3,531,905.4 |
| Water Area | 0.2 | 0.1 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Lancaster township, PA | North Providence, RI | United States |
| Age 0 to 4 | 7.5% | 4.0% | 5.9% |
| Age 5 to 9 | 6.1% | 4.7% | 6.1% |
| Age 10 to 14 | 5.8% | 6.4% | 6.6% |
| Age 15 to 17 | 2.6% | 4.1% | 3.9% |
| Age 18 to 20 | 3.6% | 3.0% | 4.0% |
| Age 21 to 24 | 2.8% | 3.5% | 5.2% |
| Age 25 to 34 | 15.0% | 17.4% | 13.8% |
| Age 35 to 44 | 12.2% | 11.9% | 12.9% |
| Age 45 to 54 | 9.9% | 13.8% | 12.6% |
| Age 55 to 59 | 5.4% | 6.7% | 6.7% |
| Age 60 to 64 | 6.9% | 6.1% | 6.3% |
| Age 65 to 74 | 11.8% | 10.9% | 9.6% |
| Age 75 to 84 | 7.0% | 5.4% | 4.5% |
| Age 85 and over | 3.3% | 2.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Lancaster township, PA | North Providence, RI | United States |
| White | 58.0% | 71.5% | 59.4% |
| Black | 6.2% | 6.0% | 12.2% |
| Asian | 5.5% | 2.6% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 1.0% | 0.4% |
| Two or More Races | 2.4% | 5.0% | 3.2% |
| Hispanic | 27.9% | 13.8% | 18.4% |
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| Marriage & Family | | | |
| | Lancaster township, PA | North Providence, RI | United States |
| Married Population | 51.6% | 38.4% | 49.8% |
| Currently Married | 49.1% | 37.8% | 48.0% |
| Married but Separated | 2.5% | 0.5% | 1.8% |
| Single Population | 48.4% | 61.6% | 50.2% |
| Never Married | 28.8% | 39.9% | 33.8% |
| Divorced | 11.1% | 15.2% | 10.8% |
| Widowed | 8.5% | 6.5% | 5.6% |
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| Household Size | 2.31 | 2.35 | 2.60 |
| Households | 7,617 | 14,297 | 124,010,992 |
| Family Households | 4,791 | 8,024 | 80,755,759 |
| Married couple, w/children | 25.1% | 23.9% | 30.5% |
| Married couple, no children | 44.9% | 38.8% | 42.9% |
| Non Family Households | 2,826 | 6,273 | 43,255,233 |
| Single householder, w/children | 17.9% | 21.0% | 15.8% |
| Single householder, no children | 12.1% | 16.4% | 10.8% |