| | Iota, LA | Galveston, TX | United States |
| Population | 1,463 | 53,092 | 329,725,481 |
| Female Population | 52.0% | 49.4% | 50.5% |
| Male Population | 48.0% | 50.6% | 49.5% |
| Median Age | 29.9 | 40 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,500 | 47,794 | 309,327,143 |
| Population - 2000 | 1,376 | 57,247 | 285,036,114 |
| Population - 1990 | 1,256 | 59,070 | 251,960,433 |
| Pop. 2000 to Now | 3.8% | -12.5% | 15.6% |
| Pop. 1990 to Now | 13.7% | -15.2% | 30.8% |
| space4 | | | |
| Population Density | 1,152.0 | 1,290.2 | 93.4 |
| Land Area | 1.3 | 41.2 | 3,531,905.4 |
| Water Area | 0.0 | 168.2 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Iota, LA | Galveston, TX | United States |
| Age 0 to 4 | 6.3% | 4.6% | 5.9% |
| Age 5 to 9 | 8.5% | 4.2% | 6.1% |
| Age 10 to 14 | 13.1% | 4.5% | 6.6% |
| Age 15 to 17 | 3.9% | 2.8% | 3.9% |
| Age 18 to 20 | 4.8% | 4.9% | 4.0% |
| Age 21 to 24 | 7.4% | 7.0% | 5.2% |
| Age 25 to 34 | 14.1% | 15.4% | 13.8% |
| Age 35 to 44 | 8.3% | 11.7% | 12.9% |
| Age 45 to 54 | 14.6% | 11.5% | 12.6% |
| Age 55 to 59 | 3.6% | 7.2% | 6.7% |
| Age 60 to 64 | 4.4% | 7.2% | 6.3% |
| Age 65 to 74 | 8.3% | 12.5% | 9.6% |
| Age 75 to 84 | 2.3% | 4.6% | 4.5% |
| Age 85 and over | 0.5% | 1.8% | 1.9% |
| space1 | | | |
| Race | | | |
| | Iota, LA | Galveston, TX | United States |
| White | 88.5% | 48.2% | 59.4% |
| Black | 2.4% | 15.8% | 12.2% |
| Asian | 1.2% | 2.7% | 5.6% |
| Native American | 0.0% | 0.1% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.1% | 0.2% |
| Other | 0.0% | 0.1% | 0.4% |
| Two or More Races | 4.6% | 1.8% | 3.2% |
| Hispanic | 3.3% | 31.1% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Iota, LA | Galveston, TX | United States |
| Married Population | 55.1% | 42.4% | 49.8% |
| Currently Married | 51.2% | 39.9% | 48.0% |
| Married but Separated | 3.9% | 2.6% | 1.8% |
| Single Population | 44.9% | 57.6% | 50.2% |
| Never Married | 32.6% | 37.9% | 33.8% |
| Divorced | 7.0% | 14.1% | 10.8% |
| Widowed | 5.3% | 5.5% | 5.6% |
| space5 | | | |
| Household Size | 2.82 | 2.12 | 2.60 |
| Households | 518 | 23,313 | 124,010,992 |
| Family Households | 345 | 12,404 | 80,755,759 |
| Married couple, w/children | 37.4% | 19.0% | 30.5% |
| Married couple, no children | 34.2% | 47.8% | 42.9% |
| Non Family Households | 173 | 10,909 | 43,255,233 |
| Single householder, w/children | 20.9% | 17.8% | 15.8% |
| Single householder, no children | 7.5% | 15.5% | 10.8% |