| | Hidden Valley, IN | Black Earth, WI | United States |
| Population | 5,723 | 1,720 | 329,725,481 |
| Female Population | 51.3% | 45.4% | 50.5% |
| Male Population | 48.7% | 54.6% | 49.5% |
| Median Age | 40.7 | 40.9 | 38.4 |
| space3 | | | |
| Population - 2010 | 5,070 | 1,340 | 309,327,143 |
| Population - 2000 | 4,417 | 1,320 | 285,036,114 |
| Population - 1990 | 2,116 | 1,248 | 251,960,433 |
| Pop. 2000 to Now | 21.8% | 7.7% | 15.6% |
| Pop. 1990 to Now | 154.3% | 13.9% | 30.8% |
| space4 | | | |
| Population Density | 1,352.6 | 2,037.9 | 93.4 |
| Land Area | 4.2 | 0.8 | 3,531,905.4 |
| Water Area | 0.2 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Hidden Valley, IN | Black Earth, WI | United States |
| Age 0 to 4 | 6.1% | 8.0% | 5.9% |
| Age 5 to 9 | 6.7% | 8.0% | 6.1% |
| Age 10 to 14 | 5.8% | 6.3% | 6.6% |
| Age 15 to 17 | 4.1% | 1.5% | 3.9% |
| Age 18 to 20 | 4.3% | 0.9% | 4.0% |
| Age 21 to 24 | 3.6% | 2.6% | 5.2% |
| Age 25 to 34 | 10.9% | 11.0% | 13.8% |
| Age 35 to 44 | 14.0% | 15.1% | 12.9% |
| Age 45 to 54 | 17.5% | 10.2% | 12.6% |
| Age 55 to 59 | 5.2% | 4.4% | 6.7% |
| Age 60 to 64 | 7.7% | 4.4% | 6.3% |
| Age 65 to 74 | 7.7% | 23.1% | 9.6% |
| Age 75 to 84 | 5.0% | 2.9% | 4.5% |
| Age 85 and over | 1.3% | 1.7% | 1.9% |
| space1 | | | |
| Race | | | |
| | Hidden Valley, IN | Black Earth, WI | United States |
| White | 98.6% | 94.5% | 59.4% |
| Black | 0.0% | 0.0% | 12.2% |
| Asian | 0.1% | 0.7% | 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 | 0.0% | 2.2% | 3.2% |
| Hispanic | 1.3% | 2.6% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Hidden Valley, IN | Black Earth, WI | United States |
| Married Population | 59.4% | 66.0% | 49.8% |
| Currently Married | 58.7% | 65.7% | 48.0% |
| Married but Separated | 0.7% | 0.3% | 1.8% |
| Single Population | 40.6% | 34.0% | 50.2% |
| Never Married | 25.6% | 15.9% | 33.8% |
| Divorced | 11.2% | 13.1% | 10.8% |
| Widowed | 3.8% | 5.0% | 5.6% |
| space5 | | | |
| Household Size | 3.06 | 2.63 | 2.60 |
| Households | 1,870 | 642 | 124,010,992 |
| Family Households | 1,544 | 396 | 80,755,759 |
| Married couple, w/children | 35.2% | 37.4% | 30.5% |
| Married couple, no children | 50.0% | 50.3% | 42.9% |
| Non Family Households | 326 | 246 | 43,255,233 |
| Single householder, w/children | 10.6% | 8.3% | 15.8% |
| Single householder, no children | 4.1% | 4.0% | 10.8% |