| | Readstown, WI | Genoa, WI | United States |
| Population | 415 | 246 | 329,725,481 |
| Female Population | 60.0% | 56.1% | 50.5% |
| Male Population | 40.0% | 43.9% | 49.5% |
| Median Age | 40.5 | 47.8 | 38.4 |
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| Population - 2010 | 415 | 264 | 309,327,143 |
| Population - 2000 | 395 | 263 | 285,036,114 |
| Population - 1990 | 420 | 266 | 251,960,433 |
| Pop. 2000 to Now | 4.8% | -1.1% | 15.6% |
| Pop. 1990 to Now | -1.4% | -2.3% | 30.8% |
| space4 | | | |
| Population Density | 242.6 | 687.2 | 93.4 |
| Land Area | 1.7 | 0.4 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Readstown, WI | Genoa, WI | United States |
| Age 0 to 4 | 3.4% | 6.1% | 5.9% |
| Age 5 to 9 | 4.6% | 9.8% | 6.1% |
| Age 10 to 14 | 7.0% | 2.0% | 6.6% |
| Age 15 to 17 | 6.0% | 4.9% | 3.9% |
| Age 18 to 20 | 7.7% | 4.9% | 4.0% |
| Age 21 to 24 | 8.0% | 1.2% | 5.2% |
| Age 25 to 34 | 5.1% | 13.0% | 13.8% |
| Age 35 to 44 | 10.1% | 4.5% | 12.9% |
| Age 45 to 54 | 10.8% | 11.4% | 12.6% |
| Age 55 to 59 | 11.1% | 4.5% | 6.7% |
| Age 60 to 64 | 3.9% | 14.2% | 6.3% |
| Age 65 to 74 | 14.2% | 17.1% | 9.6% |
| Age 75 to 84 | 4.3% | 4.5% | 4.5% |
| Age 85 and over | 3.9% | 2.0% | 1.9% |
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| Race | | | |
| | Readstown, WI | Genoa, WI | United States |
| White | 97.1% | 89.4% | 59.4% |
| Black | 1.2% | 1.6% | 12.2% |
| Asian | 0.0% | 0.4% | 5.6% |
| Native American | 0.2% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.4% | 7.3% | 3.2% |
| Hispanic | 0.0% | 1.2% | 18.4% |
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| Marriage & Family | | | |
| | Readstown, WI | Genoa, WI | United States |
| Married Population | 33.4% | 59.9% | 49.8% |
| Currently Married | 31.4% | 59.9% | 48.0% |
| Married but Separated | 2.0% | 0.0% | 1.8% |
| Single Population | 66.6% | 40.1% | 50.2% |
| Never Married | 41.1% | 22.8% | 33.8% |
| Divorced | 17.0% | 5.4% | 10.8% |
| Widowed | 8.5% | 11.9% | 5.6% |
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| Household Size | 2.37 | 2.30 | 2.60 |
| Households | 171 | 107 | 124,010,992 |
| Family Households | 74 | 79 | 80,755,759 |
| Married couple, w/children | 27.0% | 17.7% | 30.5% |
| Married couple, no children | 47.3% | 65.8% | 42.9% |
| Non Family Households | 97 | 28 | 43,255,233 |
| Single householder, w/children | 20.3% | 12.7% | 15.8% |
| Single householder, no children | 5.4% | 3.8% | 10.8% |