| | Berne, IN | Lockport, IL | United States |
| Population | 3,976 | 26,070 | 329,725,481 |
| Female Population | 57.7% | 51.4% | 50.5% |
| Male Population | 42.4% | 48.6% | 49.5% |
| Median Age | 35.7 | 36.8 | 38.4 |
| space3 | | | |
| Population - 2010 | 4,087 | 24,919 | 309,327,143 |
| Population - 2000 | 4,150 | 15,191 | 285,036,114 |
| Population - 1990 | 3,559 | 9,401 | 251,960,433 |
| Pop. 2000 to Now | 2.7% | 70.4% | 15.6% |
| Pop. 1990 to Now | 19.8% | 175.4% | 30.8% |
| space4 | | | |
| Population Density | 1,913.4 | 2,285.6 | 93.4 |
| Land Area | 2.1 | 11.4 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Berne, IN | Lockport, IL | United States |
| Age 0 to 4 | 7.5% | 6.0% | 5.9% |
| Age 5 to 9 | 7.3% | 6.5% | 6.1% |
| Age 10 to 14 | 11.8% | 8.5% | 6.6% |
| Age 15 to 17 | 3.7% | 6.3% | 3.9% |
| Age 18 to 20 | 2.0% | 3.6% | 4.0% |
| Age 21 to 24 | 3.5% | 4.0% | 5.2% |
| Age 25 to 34 | 13.5% | 13.2% | 13.8% |
| Age 35 to 44 | 13.6% | 13.9% | 12.9% |
| Age 45 to 54 | 8.4% | 15.7% | 12.6% |
| Age 55 to 59 | 4.0% | 7.0% | 6.7% |
| Age 60 to 64 | 6.8% | 4.3% | 6.3% |
| Age 65 to 74 | 5.8% | 7.4% | 9.6% |
| Age 75 to 84 | 7.0% | 2.9% | 4.5% |
| Age 85 and over | 5.0% | 0.7% | 1.9% |
| space1 | | | |
| Race | | | |
| | Berne, IN | Lockport, IL | United States |
| White | 92.4% | 84.1% | 59.4% |
| Black | 4.5% | 2.1% | 12.2% |
| Asian | 0.5% | 1.6% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.3% | 2.4% | 3.2% |
| Hispanic | 1.3% | 9.9% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Berne, IN | Lockport, IL | United States |
| Married Population | 59.0% | 53.7% | 49.8% |
| Currently Married | 56.0% | 53.1% | 48.0% |
| Married but Separated | 2.9% | 0.6% | 1.8% |
| Single Population | 41.0% | 46.3% | 50.2% |
| Never Married | 19.5% | 30.2% | 33.8% |
| Divorced | 9.9% | 11.2% | 10.8% |
| Widowed | 11.6% | 4.9% | 5.6% |
| space5 | | | |
| Household Size | 2.55 | 2.83 | 2.60 |
| Households | 1,476 | 9,139 | 124,010,992 |
| Family Households | 1,005 | 6,810 | 80,755,759 |
| Married couple, w/children | 38.2% | 38.3% | 30.5% |
| Married couple, no children | 40.6% | 39.7% | 42.9% |
| Non Family Households | 471 | 2,329 | 43,255,233 |
| Single householder, w/children | 17.0% | 12.2% | 15.8% |
| Single householder, no children | 4.2% | 9.8% | 10.8% |