| | Tecumseh, NE | Falls City, NE | United States |
| Population | 1,835 | 4,130 | 329,725,481 |
| Female Population | 44.9% | 51.3% | 50.5% |
| Male Population | 55.1% | 48.7% | 49.5% |
| Median Age | 35.8 | 40.4 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,683 | 4,329 | 309,327,143 |
| Population - 2000 | 1,716 | 4,671 | 285,036,114 |
| Population - 1990 | 1,702 | 4,769 | 251,960,433 |
| Pop. 2000 to Now | -8.0% | -12.7% | 15.6% |
| Pop. 1990 to Now | -7.3% | -14.5% | 30.8% |
| space4 | | | |
| Population Density | 1,220.1 | 1,238.8 | 93.4 |
| Land Area | 1.5 | 3.3 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Tecumseh, NE | Falls City, NE | United States |
| Age 0 to 4 | 6.6% | 5.9% | 5.9% |
| Age 5 to 9 | 4.1% | 7.9% | 6.1% |
| Age 10 to 14 | 11.3% | 6.2% | 6.6% |
| Age 15 to 17 | 4.0% | 6.2% | 3.9% |
| Age 18 to 20 | 4.5% | 2.2% | 4.0% |
| Age 21 to 24 | 6.2% | 5.0% | 5.2% |
| Age 25 to 34 | 11.5% | 9.4% | 13.8% |
| Age 35 to 44 | 8.7% | 11.6% | 12.9% |
| Age 45 to 54 | 12.5% | 11.9% | 12.6% |
| Age 55 to 59 | 8.7% | 6.2% | 6.7% |
| Age 60 to 64 | 4.1% | 7.9% | 6.3% |
| Age 65 to 74 | 6.5% | 9.4% | 9.6% |
| Age 75 to 84 | 7.8% | 5.9% | 4.5% |
| Age 85 and over | 3.6% | 4.3% | 1.9% |
| space1 | | | |
| Race | | | |
| | Tecumseh, NE | Falls City, NE | United States |
| White | 72.4% | 90.6% | 59.4% |
| Black | 0.8% | 0.2% | 12.2% |
| Asian | 2.6% | 0.0% | 5.6% |
| Native American | 0.0% | 3.4% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 2.6% | 5.4% | 3.2% |
| Hispanic | 21.7% | 0.4% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Tecumseh, NE | Falls City, NE | United States |
| Married Population | 44.6% | 50.2% | 49.8% |
| Currently Married | 43.3% | 46.8% | 48.0% |
| Married but Separated | 1.3% | 3.4% | 1.8% |
| Single Population | 55.4% | 49.8% | 50.2% |
| Never Married | 35.9% | 26.3% | 33.8% |
| Divorced | 10.6% | 15.2% | 10.8% |
| Widowed | 8.9% | 8.3% | 5.6% |
| space5 | | | |
| Household Size | 2.48 | 2.09 | 2.60 |
| Households | 724 | 1,928 | 124,010,992 |
| Family Households | 485 | 1,073 | 80,755,759 |
| Married couple, w/children | 19.4% | 32.2% | 30.5% |
| Married couple, no children | 37.7% | 39.4% | 42.9% |
| Non Family Households | 239 | 855 | 43,255,233 |
| Single householder, w/children | 34.2% | 23.4% | 15.8% |
| Single householder, no children | 8.7% | 5.0% | 10.8% |