| | Lebanon, CT | Columbia, CT | United States |
| Population | 7,140 | 5,269 | 329,725,481 |
| Female Population | 50.9% | 42.1% | 50.5% |
| Male Population | 49.1% | 57.9% | 49.5% |
| Median Age | 47.8 | 53.2 | 38.4 |
| space3 | | | |
| Population - 2010 | 7,371 | 5,481 | 309,327,143 |
| Population - 2000 | 6,907 | 4,971 | 285,036,114 |
| Population - 1990 | 6,041 | 4,510 | 251,960,433 |
| Pop. 2000 to Now | 3.0% | 7.7% | 15.6% |
| Pop. 1990 to Now | 17.7% | 18.7% | 30.8% |
| space4 | | | |
| Population Density | 132.0 | 246.5 | 93.4 |
| Land Area | 54.1 | 21.4 | 3,531,905.4 |
| Water Area | 1.2 | 0.6 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Lebanon, CT | Columbia, CT | United States |
| Age 0 to 4 | 3.0% | 2.5% | 5.9% |
| Age 5 to 9 | 3.6% | 2.9% | 6.1% |
| Age 10 to 14 | 6.8% | 5.9% | 6.6% |
| Age 15 to 17 | 3.7% | 3.4% | 3.9% |
| Age 18 to 20 | 2.5% | 0.4% | 4.0% |
| Age 21 to 24 | 5.5% | 4.2% | 5.2% |
| Age 25 to 34 | 12.2% | 9.8% | 13.8% |
| Age 35 to 44 | 10.2% | 10.9% | 12.9% |
| Age 45 to 54 | 17.3% | 17.8% | 12.6% |
| Age 55 to 59 | 8.0% | 9.2% | 6.7% |
| Age 60 to 64 | 7.0% | 10.0% | 6.3% |
| Age 65 to 74 | 12.8% | 15.6% | 9.6% |
| Age 75 to 84 | 5.9% | 4.9% | 4.5% |
| Age 85 and over | 1.4% | 2.4% | 1.9% |
| space1 | | | |
| Race | | | |
| | Lebanon, CT | Columbia, CT | United States |
| White | 90.9% | 91.4% | 59.4% |
| Black | 0.0% | 1.4% | 12.2% |
| Asian | 0.8% | 0.0% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 1.8% | 0.4% |
| Two or More Races | 3.3% | 1.4% | 3.2% |
| Hispanic | 5.0% | 3.9% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Lebanon, CT | Columbia, CT | United States |
| Married Population | 61.3% | 59.8% | 49.8% |
| Currently Married | 60.2% | 59.5% | 48.0% |
| Married but Separated | 1.1% | 0.3% | 1.8% |
| Single Population | 38.7% | 40.2% | 50.2% |
| Never Married | 28.1% | 28.4% | 33.8% |
| Divorced | 4.7% | 8.3% | 10.8% |
| Widowed | 6.0% | 3.6% | 5.6% |
| space5 | | | |
| Household Size | 2.50 | 2.36 | 2.60 |
| Households | 2,847 | 2,216 | 124,010,992 |
| Family Households | 2,034 | 1,814 | 80,755,759 |
| Married couple, w/children | 33.6% | 22.5% | 30.5% |
| Married couple, no children | 53.8% | 54.1% | 42.9% |
| Non Family Households | 813 | 402 | 43,255,233 |
| Single householder, w/children | 6.9% | 3.9% | 15.8% |
| Single householder, no children | 5.6% | 19.5% | 10.8% |