| | Riceville, IA | Iowa Falls, IA | United States |
| Population | 873 | 5,154 | 329,725,481 |
| Female Population | 47.1% | 46.3% | 50.5% |
| Male Population | 52.9% | 53.7% | 49.5% |
| Median Age | 36.3 | 41.6 | 38.4 |
| space3 | | | |
| Population - 2010 | 780 | 5,283 | 309,327,143 |
| Population - 2000 | 840 | 5,193 | 285,036,114 |
| Population - 1990 | 827 | 5,424 | 251,960,433 |
| Pop. 2000 to Now | -9.3% | -4.9% | 15.6% |
| Pop. 1990 to Now | -7.9% | -8.9% | 30.8% |
| space4 | | | |
| Population Density | 794.4 | 958.2 | 93.4 |
| Land Area | 1.1 | 5.4 | 3,531,905.4 |
| Water Area | 0.0 | 0.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Riceville, IA | Iowa Falls, IA | United States |
| Age 0 to 4 | 5.5% | 4.7% | 5.9% |
| Age 5 to 9 | 12.1% | 5.3% | 6.1% |
| Age 10 to 14 | 3.9% | 4.4% | 6.6% |
| Age 15 to 17 | 2.7% | 2.3% | 3.9% |
| Age 18 to 20 | 2.4% | 7.4% | 4.0% |
| Age 21 to 24 | 6.8% | 7.2% | 5.2% |
| Age 25 to 34 | 13.1% | 12.2% | 13.8% |
| Age 35 to 44 | 12.3% | 9.2% | 12.9% |
| Age 45 to 54 | 9.4% | 10.2% | 12.6% |
| Age 55 to 59 | 2.5% | 6.7% | 6.7% |
| Age 60 to 64 | 4.7% | 7.3% | 6.3% |
| Age 65 to 74 | 11.1% | 11.1% | 9.6% |
| Age 75 to 84 | 5.7% | 6.1% | 4.5% |
| Age 85 and over | 7.8% | 5.9% | 1.9% |
| space1 | | | |
| Race | | | |
| | Riceville, IA | Iowa Falls, IA | United States |
| White | 86.4% | 93.6% | 59.4% |
| Black | 0.0% | 0.6% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 0.0% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.2% | 0.0% | 0.2% |
| Other | 0.0% | 0.1% | 0.4% |
| Two or More Races | 1.4% | 0.8% | 3.2% |
| Hispanic | 12.0% | 4.9% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Riceville, IA | Iowa Falls, IA | United States |
| Married Population | 45.0% | 52.6% | 49.8% |
| Currently Married | 45.0% | 52.4% | 48.0% |
| Married but Separated | 0.0% | 0.2% | 1.8% |
| Single Population | 55.0% | 47.4% | 50.2% |
| Never Married | 37.2% | 31.2% | 33.8% |
| Divorced | 8.2% | 8.1% | 10.8% |
| Widowed | 9.6% | 8.1% | 5.6% |
| space5 | | | |
| Household Size | 2.13 | 2.15 | 2.60 |
| Households | 399 | 2,216 | 124,010,992 |
| Family Households | 203 | 1,211 | 80,755,759 |
| Married couple, w/children | 20.7% | 23.7% | 30.5% |
| Married couple, no children | 44.3% | 58.9% | 42.9% |
| Non Family Households | 196 | 1,005 | 43,255,233 |
| Single householder, w/children | 30.5% | 13.0% | 15.8% |
| Single householder, no children | 4.4% | 4.4% | 10.8% |