| | Warren, NJ | Plainsboro, NJ | United States |
| Population | 15,850 | 23,966 | 329,725,481 |
| Female Population | 48.0% | 50.2% | 50.5% |
| Male Population | 52.0% | 49.8% | 49.5% |
| Median Age | 45.7 | 37.7 | 38.4 |
| space3 | | | |
| Population - 2010 | 15,350 | 22,986 | 309,327,143 |
| Population - 2000 | 14,259 | 20,215 | 285,036,114 |
| Population - 1990 | 10,830 | 14,213 | 251,960,433 |
| Pop. 2000 to Now | 9.7% | 12.3% | 15.6% |
| Pop. 1990 to Now | 44.4% | 59.8% | 30.8% |
| space4 | | | |
| Population Density | 810.7 | 2,033.6 | 93.4 |
| Land Area | 19.6 | 11.8 | 3,531,905.4 |
| Water Area | 0.1 | 0.4 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Warren, NJ | Plainsboro, NJ | United States |
| Age 0 to 4 | 4.9% | 5.6% | 5.9% |
| Age 5 to 9 | 3.9% | 6.3% | 6.1% |
| Age 10 to 14 | 9.0% | 7.7% | 6.6% |
| Age 15 to 17 | 5.9% | 3.9% | 3.9% |
| Age 18 to 20 | 3.2% | 1.7% | 4.0% |
| Age 21 to 24 | 3.4% | 3.2% | 5.2% |
| Age 25 to 34 | 7.5% | 16.0% | 13.8% |
| Age 35 to 44 | 11.5% | 17.0% | 12.9% |
| Age 45 to 54 | 16.0% | 16.3% | 12.6% |
| Age 55 to 59 | 9.9% | 6.3% | 6.7% |
| Age 60 to 64 | 7.3% | 5.3% | 6.3% |
| Age 65 to 74 | 10.3% | 6.1% | 9.6% |
| Age 75 to 84 | 5.2% | 2.5% | 4.5% |
| Age 85 and over | 1.9% | 1.9% | 1.9% |
| space1 | | | |
| Race | | | |
| | Warren, NJ | Plainsboro, NJ | United States |
| White | 70.9% | 29.3% | 59.4% |
| Black | 2.1% | 6.1% | 12.2% |
| Asian | 16.5% | 58.3% | 5.6% |
| Native American | 0.1% | 0.6% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.6% | 0.2% | 0.4% |
| Two or More Races | 2.2% | 2.0% | 3.2% |
| Hispanic | 7.6% | 3.6% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Warren, NJ | Plainsboro, NJ | United States |
| Married Population | 65.7% | 63.0% | 49.8% |
| Currently Married | 65.3% | 61.7% | 48.0% |
| Married but Separated | 0.4% | 1.3% | 1.8% |
| Single Population | 34.3% | 37.0% | 50.2% |
| Never Married | 25.5% | 28.3% | 33.8% |
| Divorced | 5.2% | 5.4% | 10.8% |
| Widowed | 3.6% | 3.2% | 5.6% |
| space5 | | | |
| Household Size | 2.91 | 2.43 | 2.60 |
| Households | 5,386 | 9,806 | 124,010,992 |
| Family Households | 4,666 | 6,293 | 80,755,759 |
| Married couple, w/children | 40.8% | 48.9% | 30.5% |
| Married couple, no children | 47.2% | 39.2% | 42.9% |
| Non Family Households | 720 | 3,513 | 43,255,233 |
| Single householder, w/children | 4.0% | 7.9% | 15.8% |
| Single householder, no children | 8.0% | 4.0% | 10.8% |