| | Sanborn, IA | Floyd, VA | United States |
| Population | 1,364 | 610 | 329,725,481 |
| Female Population | 53.5% | 64.8% | 50.5% |
| Male Population | 46.5% | 35.3% | 49.5% |
| Median Age | 41.2 | 51.1 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,404 | 439 | 309,327,143 |
| Population - 2000 | 1,353 | 432 | 285,036,114 |
| Population - 1990 | 1,345 | 396 | 251,960,433 |
| Pop. 2000 to Now | 2.7% | 2.8% | 15.6% |
| Pop. 1990 to Now | 3.4% | 12.1% | 30.8% |
| space4 | | | |
| Population Density | 719.0 | 1,337.7 | 93.4 |
| Land Area | 1.9 | 0.5 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Sanborn, IA | Floyd, VA | United States |
| Age 0 to 4 | 6.7% | 3.3% | 5.9% |
| Age 5 to 9 | 6.1% | 1.8% | 6.1% |
| Age 10 to 14 | 7.6% | 11.3% | 6.6% |
| Age 15 to 17 | 6.4% | 6.2% | 3.9% |
| Age 18 to 20 | 2.9% | 5.4% | 4.0% |
| Age 21 to 24 | 3.5% | 0.0% | 5.2% |
| Age 25 to 34 | 10.6% | 7.7% | 13.8% |
| Age 35 to 44 | 10.1% | 10.0% | 12.9% |
| Age 45 to 54 | 5.2% | 13.1% | 12.6% |
| Age 55 to 59 | 7.3% | 10.0% | 6.7% |
| Age 60 to 64 | 5.1% | 9.0% | 6.3% |
| Age 65 to 74 | 9.2% | 11.6% | 9.6% |
| Age 75 to 84 | 7.6% | 8.4% | 4.5% |
| Age 85 and over | 11.8% | 2.1% | 1.9% |
| space1 | | | |
| Race | | | |
| | Sanborn, IA | Floyd, VA | United States |
| White | 97.2% | 74.8% | 59.4% |
| Black | 1.1% | 8.4% | 12.2% |
| Asian | 0.1% | 0.0% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 0.9% | 0.0% | 3.2% |
| Hispanic | 0.7% | 16.9% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Sanborn, IA | Floyd, VA | United States |
| Married Population | 53.5% | 53.1% | 49.8% |
| Currently Married | 52.3% | 47.5% | 48.0% |
| Married but Separated | 1.2% | 5.7% | 1.8% |
| Single Population | 46.5% | 46.9% | 50.2% |
| Never Married | 26.4% | 27.1% | 33.8% |
| Divorced | 7.1% | 10.4% | 10.8% |
| Widowed | 13.1% | 9.4% | 5.6% |
| space5 | | | |
| Household Size | 2.33 | 2.40 | 2.60 |
| Households | 560 | 254 | 124,010,992 |
| Family Households | 306 | 155 | 80,755,759 |
| Married couple, w/children | 31.0% | 23.2% | 30.5% |
| Married couple, no children | 53.6% | 49.0% | 42.9% |
| Non Family Households | 254 | 99 | 43,255,233 |
| Single householder, w/children | 14.4% | 11.0% | 15.8% |
| Single householder, no children | 1.0% | 16.8% | 10.8% |