| | Exira, IA | Brayton, IA | United States |
| Population | 797 | 97 | 329,725,481 |
| Female Population | 55.6% | 41.2% | 50.5% |
| Male Population | 44.4% | 58.8% | 49.5% |
| Median Age | 52.4 | 49.1 | 38.4 |
| space3 | | | |
| Population - 2010 | 836 | 127 | 309,327,143 |
| Population - 2000 | 810 | 145 | 285,036,114 |
| Population - 1990 | 955 | 148 | 251,960,433 |
| Pop. 2000 to Now | -4.3% | -23.5% | 15.6% |
| Pop. 1990 to Now | -18.9% | -25.0% | 30.8% |
| space4 | | | |
| Population Density | 782.9 | 157.2 | 93.4 |
| Land Area | 1.0 | 0.6 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Exira, IA | Brayton, IA | United States |
| Age 0 to 4 | 7.9% | 2.1% | 5.9% |
| Age 5 to 9 | 5.4% | 2.1% | 6.1% |
| Age 10 to 14 | 5.3% | 3.1% | 6.6% |
| Age 15 to 17 | 1.0% | 2.1% | 3.9% |
| Age 18 to 20 | 2.0% | 3.1% | 4.0% |
| Age 21 to 24 | 5.3% | 3.1% | 5.2% |
| Age 25 to 34 | 10.3% | 18.6% | 13.8% |
| Age 35 to 44 | 4.6% | 15.5% | 12.9% |
| Age 45 to 54 | 10.8% | 8.2% | 12.6% |
| Age 55 to 59 | 8.4% | 16.5% | 6.7% |
| Age 60 to 64 | 12.0% | 12.4% | 6.3% |
| Age 65 to 74 | 13.6% | 13.4% | 9.6% |
| Age 75 to 84 | 7.3% | 0.0% | 4.5% |
| Age 85 and over | 6.1% | 0.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Exira, IA | Brayton, IA | United States |
| White | 96.2% | 100.0% | 59.4% |
| Black | 0.0% | 0.0% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 0.8% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.4% | 0.0% | 3.2% |
| Hispanic | 2.6% | 0.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Exira, IA | Brayton, IA | United States |
| Married Population | 52.9% | 62.2% | 49.8% |
| Currently Married | 52.9% | 52.2% | 48.0% |
| Married but Separated | 0.0% | 10.0% | 1.8% |
| Single Population | 47.1% | 37.8% | 50.2% |
| Never Married | 13.9% | 16.7% | 33.8% |
| Divorced | 19.4% | 18.9% | 10.8% |
| Widowed | 13.9% | 2.2% | 5.6% |
| space5 | | | |
| Household Size | 2.05 | 2.11 | 2.60 |
| Households | 368 | 46 | 124,010,992 |
| Family Households | 191 | 23 | 80,755,759 |
| Married couple, w/children | 30.4% | 4.3% | 30.5% |
| Married couple, no children | 56.5% | 69.6% | 42.9% |
| Non Family Households | 177 | 23 | 43,255,233 |
| Single householder, w/children | 8.9% | 17.4% | 15.8% |
| Single householder, no children | 4.2% | 8.7% | 10.8% |