| | Potosi, MO | Cinco Ranch, TX | United States |
| Population | 2,563 | 18,399 | 329,725,481 |
| Female Population | 53.0% | 50.9% | 50.5% |
| Male Population | 47.0% | 49.1% | 49.5% |
| Median Age | 38.9 | 39.1 | 38.4 |
| space3 | | | |
| Population - 2010 | 2,646 | 18,138 | 309,327,143 |
| Population - 2000 | 2,662 | 11,196 | 285,036,114 |
| Population - 1990 | 2,683 | 802 | 251,960,433 |
| Pop. 2000 to Now | -4.3% | 90.8% | 15.6% |
| Pop. 1990 to Now | -5.0% | 2,564.2% | 30.8% |
| space4 | | | |
| Population Density | 1,101.0 | 4,267.9 | 93.4 |
| Land Area | 2.3 | 4.3 | 3,531,905.4 |
| Water Area | 0.0 | 0.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Potosi, MO | Cinco Ranch, TX | United States |
| Age 0 to 4 | 8.7% | 7.2% | 5.9% |
| Age 5 to 9 | 4.4% | 8.3% | 6.1% |
| Age 10 to 14 | 6.2% | 7.0% | 6.6% |
| Age 15 to 17 | 5.9% | 5.5% | 3.9% |
| Age 18 to 20 | 5.5% | 2.8% | 4.0% |
| Age 21 to 24 | 2.7% | 2.5% | 5.2% |
| Age 25 to 34 | 12.2% | 8.6% | 13.8% |
| Age 35 to 44 | 12.9% | 17.9% | 12.9% |
| Age 45 to 54 | 9.5% | 14.4% | 12.6% |
| Age 55 to 59 | 8.7% | 5.8% | 6.7% |
| Age 60 to 64 | 5.7% | 7.6% | 6.3% |
| Age 65 to 74 | 8.5% | 7.2% | 9.6% |
| Age 75 to 84 | 6.3% | 3.5% | 4.5% |
| Age 85 and over | 3.0% | 1.7% | 1.9% |
| space1 | | | |
| Race | | | |
| | Potosi, MO | Cinco Ranch, TX | United States |
| White | 93.2% | 58.9% | 59.4% |
| Black | 1.2% | 1.5% | 12.2% |
| Asian | 0.2% | 11.9% | 5.6% |
| Native American | 0.2% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.6% | 0.1% | 0.4% |
| Two or More Races | 3.4% | 2.4% | 3.2% |
| Hispanic | 1.1% | 25.3% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Potosi, MO | Cinco Ranch, TX | United States |
| Married Population | 42.5% | 71.8% | 49.8% |
| Currently Married | 39.8% | 71.5% | 48.0% |
| Married but Separated | 2.7% | 0.4% | 1.8% |
| Single Population | 57.5% | 28.2% | 50.2% |
| Never Married | 29.1% | 20.6% | 33.8% |
| Divorced | 15.9% | 5.3% | 10.8% |
| Widowed | 12.6% | 2.2% | 5.6% |
| space5 | | | |
| Household Size | 2.34 | 2.95 | 2.60 |
| Households | 1,033 | 6,234 | 124,010,992 |
| Family Households | 569 | 5,307 | 80,755,759 |
| Married couple, w/children | 35.9% | 53.3% | 30.5% |
| Married couple, no children | 30.9% | 38.6% | 42.9% |
| Non Family Households | 464 | 927 | 43,255,233 |
| Single householder, w/children | 23.7% | 4.9% | 15.8% |
| Single householder, no children | 9.5% | 3.1% | 10.8% |