| | Jump River, WI | Keosauqua, IA | United States |
| Population | 338 | 897 | 329,725,481 |
| Female Population | 50.0% | 53.4% | 50.5% |
| Male Population | 50.0% | 46.6% | 49.5% |
| Median Age | 49.8 | 55.1 | 38.4 |
| space3 | | | |
| Population - 2010 | 375 | 1,007 | 309,327,143 |
| Population - 2000 | 311 | 1,066 | 285,036,114 |
| Population - 1990 | 330 | 1,020 | 251,960,433 |
| Pop. 2000 to Now | 16.7% | -14.5% | 15.6% |
| Pop. 1990 to Now | 10.0% | -10.7% | 30.8% |
| space4 | | | |
| Population Density | 9.4 | 619.9 | 93.4 |
| Land Area | 35.9 | 1.4 | 3,531,905.4 |
| Water Area | 0.0 | 0.1 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Jump River, WI | Keosauqua, IA | United States |
| Age 0 to 4 | 6.8% | 3.9% | 5.9% |
| Age 5 to 9 | 6.8% | 3.3% | 6.1% |
| Age 10 to 14 | 3.6% | 4.8% | 6.6% |
| Age 15 to 17 | 6.5% | 2.3% | 3.9% |
| Age 18 to 20 | 7.1% | 1.6% | 4.0% |
| Age 21 to 24 | 1.2% | 1.1% | 5.2% |
| Age 25 to 34 | 4.4% | 10.1% | 13.8% |
| Age 35 to 44 | 9.8% | 9.0% | 12.9% |
| Age 45 to 54 | 12.1% | 13.4% | 12.6% |
| Age 55 to 59 | 8.0% | 5.8% | 6.7% |
| Age 60 to 64 | 9.5% | 4.9% | 6.3% |
| Age 65 to 74 | 14.8% | 21.2% | 9.6% |
| Age 75 to 84 | 3.6% | 10.8% | 4.5% |
| Age 85 and over | 5.9% | 7.7% | 1.9% |
| space1 | | | |
| Race | | | |
| | Jump River, WI | Keosauqua, IA | United States |
| White | 95.6% | 97.7% | 59.4% |
| Black | 0.0% | 0.7% | 12.2% |
| Asian | 0.0% | 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 | 0.3% | 0.4% | 3.2% |
| Hispanic | 4.1% | 1.2% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Jump River, WI | Keosauqua, IA | United States |
| Married Population | 50.0% | 56.4% | 49.8% |
| Currently Married | 49.6% | 56.1% | 48.0% |
| Married but Separated | 0.4% | 0.3% | 1.8% |
| Single Population | 50.0% | 43.6% | 50.2% |
| Never Married | 25.0% | 17.5% | 33.8% |
| Divorced | 11.1% | 15.8% | 10.8% |
| Widowed | 13.9% | 10.3% | 5.6% |
| space5 | | | |
| Household Size | 2.36 | 2.10 | 2.60 |
| Households | 143 | 401 | 124,010,992 |
| Family Households | 82 | 239 | 80,755,759 |
| Married couple, w/children | 32.9% | 21.8% | 30.5% |
| Married couple, no children | 54.9% | 57.3% | 42.9% |
| Non Family Households | 61 | 162 | 43,255,233 |
| Single householder, w/children | 7.3% | 8.8% | 15.8% |
| Single householder, no children | 4.9% | 12.1% | 10.8% |