| | Mariaville, ME | Ridgefield Park, NJ | United States |
| Population | 542 | 13,202 | 329,725,481 |
| Female Population | 41.7% | 51.9% | 50.5% |
| Male Population | 58.3% | 48.1% | 49.5% |
| Median Age | 41.2 | 37.4 | 38.4 |
| space3 | | | |
| Population - 2010 | 514 | 12,737 | 309,327,143 |
| Population - 2000 | 414 | 12,873 | 285,036,114 |
| Population - 1990 | 270 | 12,454 | 251,960,433 |
| Pop. 2000 to Now | 30.4% | -0.3% | 15.6% |
| Pop. 1990 to Now | 100.0% | 3.1% | 30.8% |
| space4 | | | |
| Population Density | 14.0 | 7,743.1 | 93.4 |
| Land Area | 38.7 | 1.7 | 3,531,905.4 |
| Water Area | 8.1 | 0.2 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Mariaville, ME | Ridgefield Park, NJ | United States |
| Age 0 to 4 | 4.4% | 7.5% | 5.9% |
| Age 5 to 9 | 3.7% | 4.9% | 6.1% |
| Age 10 to 14 | 3.5% | 5.4% | 6.6% |
| Age 15 to 17 | 4.2% | 4.2% | 3.9% |
| Age 18 to 20 | 3.5% | 2.2% | 4.0% |
| Age 21 to 24 | 9.8% | 4.1% | 5.2% |
| Age 25 to 34 | 14.9% | 16.9% | 13.8% |
| Age 35 to 44 | 10.7% | 14.4% | 12.9% |
| Age 45 to 54 | 9.6% | 11.2% | 12.6% |
| Age 55 to 59 | 7.2% | 7.1% | 6.7% |
| Age 60 to 64 | 14.4% | 7.1% | 6.3% |
| Age 65 to 74 | 11.6% | 8.9% | 9.6% |
| Age 75 to 84 | 2.4% | 4.1% | 4.5% |
| Age 85 and over | 0.0% | 1.9% | 1.9% |
| space1 | | | |
| Race | | | |
| | Mariaville, ME | Ridgefield Park, NJ | United States |
| White | 87.1% | 35.7% | 59.4% |
| Black | 1.3% | 3.4% | 12.2% |
| Asian | 6.6% | 6.2% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.4% | 0.4% |
| Two or More Races | 3.7% | 1.8% | 3.2% |
| Hispanic | 1.3% | 52.6% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Mariaville, ME | Ridgefield Park, NJ | United States |
| Married Population | 53.0% | 48.5% | 49.8% |
| Currently Married | 51.4% | 46.2% | 48.0% |
| Married but Separated | 1.7% | 2.4% | 1.8% |
| Single Population | 47.0% | 51.5% | 50.2% |
| Never Married | 35.5% | 34.6% | 33.8% |
| Divorced | 10.4% | 12.6% | 10.8% |
| Widowed | 1.0% | 4.3% | 5.6% |
| space5 | | | |
| Household Size | 2.24 | 2.65 | 2.60 |
| Households | 242 | 4,971 | 124,010,992 |
| Family Households | 134 | 3,305 | 80,755,759 |
| Married couple, w/children | 25.4% | 34.4% | 30.5% |
| Married couple, no children | 64.9% | 34.0% | 42.9% |
| Non Family Households | 108 | 1,666 | 43,255,233 |
| Single householder, w/children | 9.7% | 21.5% | 15.8% |
| Single householder, no children | 0.0% | 10.1% | 10.8% |