| | Odessa, MO | Savannah, MO | United States |
| Population | 5,538 | 5,087 | 329,725,481 |
| Female Population | 50.1% | 54.7% | 50.5% |
| Male Population | 49.9% | 45.3% | 49.5% |
| Median Age | 41.9 | 40.4 | 38.4 |
| space3 | | | |
| Population - 2010 | 5,312 | 5,075 | 309,327,143 |
| Population - 2000 | 4,818 | 4,762 | 285,036,114 |
| Population - 1990 | 3,695 | 4,352 | 251,960,433 |
| Pop. 2000 to Now | 9.9% | 8.5% | 15.6% |
| Pop. 1990 to Now | 43.3% | 18.8% | 30.8% |
| space4 | | | |
| Population Density | 1,352.1 | 1,565.2 | 93.4 |
| Land Area | 4.1 | 3.3 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Odessa, MO | Savannah, MO | United States |
| Age 0 to 4 | 6.9% | 6.2% | 5.9% |
| Age 5 to 9 | 4.9% | 7.3% | 6.1% |
| Age 10 to 14 | 7.0% | 7.3% | 6.6% |
| Age 15 to 17 | 3.8% | 5.3% | 3.9% |
| Age 18 to 20 | 5.0% | 2.8% | 4.0% |
| Age 21 to 24 | 5.4% | 4.1% | 5.2% |
| Age 25 to 34 | 10.8% | 12.3% | 13.8% |
| Age 35 to 44 | 11.8% | 12.0% | 12.9% |
| Age 45 to 54 | 15.0% | 9.9% | 12.6% |
| Age 55 to 59 | 4.7% | 7.0% | 6.7% |
| Age 60 to 64 | 3.1% | 6.5% | 6.3% |
| Age 65 to 74 | 8.5% | 8.2% | 9.6% |
| Age 75 to 84 | 11.8% | 4.5% | 4.5% |
| Age 85 and over | 1.4% | 6.6% | 1.9% |
| space1 | | | |
| Race | | | |
| | Odessa, MO | Savannah, MO | United States |
| White | 96.0% | 97.9% | 59.4% |
| Black | 1.4% | 0.3% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 0.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.1% | 1.4% | 3.2% |
| Hispanic | 1.5% | 0.4% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Odessa, MO | Savannah, MO | United States |
| Married Population | 55.6% | 49.8% | 49.8% |
| Currently Married | 53.7% | 45.5% | 48.0% |
| Married but Separated | 1.8% | 4.4% | 1.8% |
| Single Population | 44.4% | 50.2% | 50.2% |
| Never Married | 22.8% | 27.7% | 33.8% |
| Divorced | 12.8% | 12.0% | 10.8% |
| Widowed | 8.8% | 10.4% | 5.6% |
| space5 | | | |
| Household Size | 2.60 | 2.29 | 2.60 |
| Households | 2,113 | 2,172 | 124,010,992 |
| Family Households | 1,629 | 1,243 | 80,755,759 |
| Married couple, w/children | 26.5% | 32.9% | 30.5% |
| Married couple, no children | 46.6% | 41.4% | 42.9% |
| Non Family Households | 484 | 929 | 43,255,233 |
| Single householder, w/children | 12.6% | 17.7% | 15.8% |
| Single householder, no children | 14.2% | 8.0% | 10.8% |