| | Wayne, NJ | Sparta, NJ | United States |
| Population | 54,880 | 19,621 | 329,725,481 |
| Female Population | 51.0% | 50.8% | 50.5% |
| Male Population | 49.0% | 49.2% | 49.5% |
| Median Age | 42.6 | 42.4 | 38.4 |
| space3 | | | |
| Population - 2010 | 54,729 | 19,576 | 309,327,143 |
| Population - 2000 | 54,069 | 18,080 | 285,036,114 |
| Population - 1990 | 47,025 | 15,157 | 251,960,433 |
| Pop. 2000 to Now | -1.7% | 2.9% | 15.6% |
| Pop. 1990 to Now | 13.1% | 22.7% | 30.8% |
| space4 | | | |
| Population Density | 2,311.5 | 531.1 | 93.4 |
| Land Area | 23.7 | 36.9 | 3,531,905.4 |
| Water Area | 1.4 | 2.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Wayne, NJ | Sparta, NJ | United States |
| Age 0 to 4 | 5.3% | 5.9% | 5.9% |
| Age 5 to 9 | 6.0% | 6.8% | 6.1% |
| Age 10 to 14 | 6.1% | 7.2% | 6.6% |
| Age 15 to 17 | 4.0% | 4.9% | 3.9% |
| Age 18 to 20 | 4.5% | 3.8% | 4.0% |
| Age 21 to 24 | 5.5% | 4.0% | 5.2% |
| Age 25 to 34 | 9.7% | 8.4% | 13.8% |
| Age 35 to 44 | 11.6% | 12.3% | 12.9% |
| Age 45 to 54 | 12.7% | 16.1% | 12.6% |
| Age 55 to 59 | 7.9% | 10.7% | 6.7% |
| Age 60 to 64 | 7.4% | 6.5% | 6.3% |
| Age 65 to 74 | 10.5% | 7.9% | 9.6% |
| Age 75 to 84 | 6.1% | 4.1% | 4.5% |
| Age 85 and over | 3.0% | 1.4% | 1.9% |
| space1 | | | |
| Race | | | |
| | Wayne, NJ | Sparta, NJ | United States |
| White | 74.3% | 86.2% | 59.4% |
| Black | 2.3% | 0.5% | 12.2% |
| Asian | 9.5% | 3.8% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.1% | 0.0% | 0.2% |
| Other | 0.8% | 0.7% | 0.4% |
| Two or More Races | 1.5% | 3.0% | 3.2% |
| Hispanic | 11.5% | 5.8% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Wayne, NJ | Sparta, NJ | United States |
| Married Population | 58.0% | 64.1% | 49.8% |
| Currently Married | 57.1% | 62.8% | 48.0% |
| Married but Separated | 1.0% | 1.3% | 1.8% |
| Single Population | 42.0% | 35.9% | 50.2% |
| Never Married | 28.3% | 24.5% | 33.8% |
| Divorced | 7.2% | 7.5% | 10.8% |
| Widowed | 6.4% | 3.9% | 5.6% |
| space5 | | | |
| Household Size | 2.75 | 2.79 | 2.60 |
| Households | 19,147 | 7,004 | 124,010,992 |
| Family Households | 14,204 | 5,477 | 80,755,759 |
| Married couple, w/children | 37.4% | 41.9% | 30.5% |
| Married couple, no children | 48.0% | 46.7% | 42.9% |
| Non Family Households | 4,943 | 1,527 | 43,255,233 |
| Single householder, w/children | 6.9% | 8.7% | 15.8% |
| Single householder, no children | 7.7% | 2.7% | 10.8% |