| | North Smithfield, RI | Cranston, RI | United States |
| Population | 12,537 | 82,654 | 329,725,481 |
| Female Population | 49.6% | 49.7% | 50.5% |
| Male Population | 50.4% | 50.3% | 49.5% |
| Median Age | 46.4 | 40 | 38.4 |
| space3 | | | |
| Population - 2010 | 11,987 | 80,797 | 309,327,143 |
| Population - 2000 | 10,618 | 79,269 | 285,036,114 |
| Population - 1990 | 10,497 | 76,060 | 251,960,433 |
| Pop. 2000 to Now | 18.4% | 2.4% | 15.6% |
| Pop. 1990 to Now | 19.8% | 6.7% | 30.8% |
| space4 | | | |
| Population Density | 526.7 | 2,917.2 | 93.4 |
| Land Area | 23.8 | 28.3 | 3,531,905.4 |
| Water Area | 0.9 | 1.7 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | North Smithfield, RI | Cranston, RI | United States |
| Age 0 to 4 | 3.8% | 5.6% | 5.9% |
| Age 5 to 9 | 4.5% | 5.3% | 6.1% |
| Age 10 to 14 | 6.5% | 6.3% | 6.6% |
| Age 15 to 17 | 4.1% | 3.4% | 3.9% |
| Age 18 to 20 | 3.0% | 3.0% | 4.0% |
| Age 21 to 24 | 3.1% | 4.7% | 5.2% |
| Age 25 to 34 | 10.4% | 14.2% | 13.8% |
| Age 35 to 44 | 11.7% | 14.0% | 12.9% |
| Age 45 to 54 | 15.7% | 11.6% | 12.6% |
| Age 55 to 59 | 8.1% | 6.9% | 6.7% |
| Age 60 to 64 | 6.5% | 8.7% | 6.3% |
| Age 65 to 74 | 13.9% | 9.3% | 9.6% |
| Age 75 to 84 | 4.6% | 4.3% | 4.5% |
| Age 85 and over | 4.0% | 2.7% | 1.9% |
| space1 | | | |
| Race | | | |
| | North Smithfield, RI | Cranston, RI | United States |
| White | 94.7% | 67.7% | 59.4% |
| Black | 0.6% | 5.1% | 12.2% |
| Asian | 0.9% | 6.8% | 5.6% |
| Native American | 0.0% | 0.2% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.1% | 0.2% |
| Other | 0.0% | 0.5% | 0.4% |
| Two or More Races | 1.2% | 3.5% | 3.2% |
| Hispanic | 2.6% | 16.2% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | North Smithfield, RI | Cranston, RI | United States |
| Married Population | 56.6% | 47.1% | 49.8% |
| Currently Married | 56.2% | 45.6% | 48.0% |
| Married but Separated | 0.4% | 1.5% | 1.8% |
| Single Population | 43.4% | 52.9% | 50.2% |
| Never Married | 25.1% | 34.8% | 33.8% |
| Divorced | 10.7% | 11.9% | 10.8% |
| Widowed | 7.6% | 6.3% | 5.6% |
| space5 | | | |
| Household Size | 2.42 | 2.48 | 2.60 |
| Households | 5,083 | 31,917 | 124,010,992 |
| Family Households | 3,300 | 19,646 | 80,755,759 |
| Married couple, w/children | 25.8% | 30.0% | 30.5% |
| Married couple, no children | 55.3% | 43.8% | 42.9% |
| Non Family Households | 1,783 | 12,271 | 43,255,233 |
| Single householder, w/children | 10.7% | 14.3% | 15.8% |
| Single householder, no children | 8.2% | 11.9% | 10.8% |