| | Granby, MO | Unionville, MO | United States |
| Population | 2,380 | 1,915 | 329,725,481 |
| Female Population | 49.3% | 47.5% | 50.5% |
| Male Population | 50.7% | 52.5% | 49.5% |
| Median Age | 38 | 31.9 | 38.4 |
| space3 | | | |
| Population - 2010 | 2,140 | 1,859 | 309,327,143 |
| Population - 2000 | 2,121 | 2,041 | 285,036,114 |
| Population - 1990 | 1,945 | 1,989 | 251,960,433 |
| Pop. 2000 to Now | -1.0% | -15.1% | 15.6% |
| Pop. 1990 to Now | 8.0% | -12.9% | 30.8% |
| space4 | | | |
| Population Density | 538.0 | 959.4 | 93.4 |
| Land Area | 4.4 | 2.0 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Granby, MO | Unionville, MO | United States |
| Age 0 to 4 | 5.5% | 6.6% | 5.9% |
| Age 5 to 9 | 7.9% | 6.5% | 6.1% |
| Age 10 to 14 | 8.4% | 10.8% | 6.6% |
| Age 15 to 17 | 7.2% | 2.2% | 3.9% |
| Age 18 to 20 | 5.0% | 3.5% | 4.0% |
| Age 21 to 24 | 2.3% | 2.6% | 5.2% |
| Age 25 to 34 | 11.0% | 19.6% | 13.8% |
| Age 35 to 44 | 15.0% | 10.0% | 12.9% |
| Age 45 to 54 | 10.2% | 6.8% | 12.6% |
| Age 55 to 59 | 8.4% | 5.6% | 6.7% |
| Age 60 to 64 | 6.6% | 4.9% | 6.3% |
| Age 65 to 74 | 7.9% | 11.2% | 9.6% |
| Age 75 to 84 | 2.9% | 5.7% | 4.5% |
| Age 85 and over | 1.6% | 4.2% | 1.9% |
| space1 | | | |
| Race | | | |
| | Granby, MO | Unionville, MO | United States |
| White | 89.0% | 96.9% | 59.4% |
| Black | 0.5% | 0.7% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 0.8% | 0.4% | 0.6% |
| Hawaiian, Pacific Islander | 0.2% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 8.5% | 1.5% | 3.2% |
| Hispanic | 1.0% | 0.6% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Granby, MO | Unionville, MO | United States |
| Married Population | 63.5% | 33.0% | 49.8% |
| Currently Married | 60.0% | 31.9% | 48.0% |
| Married but Separated | 3.5% | 1.2% | 1.8% |
| Single Population | 36.5% | 67.0% | 50.2% |
| Never Married | 23.5% | 39.5% | 33.8% |
| Divorced | 8.5% | 15.6% | 10.8% |
| Widowed | 4.5% | 11.9% | 5.6% |
| space5 | | | |
| Household Size | 2.82 | 2.78 | 2.60 |
| Households | 828 | 655 | 124,010,992 |
| Family Households | 639 | 305 | 80,755,759 |
| Married couple, w/children | 41.5% | 27.9% | 30.5% |
| Married couple, no children | 39.9% | 40.3% | 42.9% |
| Non Family Households | 189 | 350 | 43,255,233 |
| Single householder, w/children | 13.0% | 26.9% | 15.8% |
| Single householder, no children | 5.6% | 4.9% | 10.8% |