| | Parowan, UT | Helper, UT | United States |
| Population | 2,974 | 2,558 | 329,725,481 |
| Female Population | 48.8% | 50.1% | 50.5% |
| Male Population | 51.2% | 49.9% | 49.5% |
| Median Age | 38.7 | 42.1 | 38.4 |
| space3 | | | |
| Population - 2010 | 2,805 | 2,206 | 309,327,143 |
| Population - 2000 | 2,565 | 2,025 | 285,036,114 |
| Population - 1990 | 1,873 | 2,148 | 251,960,433 |
| Pop. 2000 to Now | 25.7% | 5.7% | 15.6% |
| Pop. 1990 to Now | 72.1% | -0.3% | 30.8% |
| space4 | | | |
| Population Density | 430.8 | 1,415.6 | 93.4 |
| Land Area | 6.9 | 1.8 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Parowan, UT | Helper, UT | United States |
| Age 0 to 4 | 7.1% | 4.7% | 5.9% |
| Age 5 to 9 | 11.7% | 6.2% | 6.1% |
| Age 10 to 14 | 6.3% | 7.8% | 6.6% |
| Age 15 to 17 | 3.0% | 4.6% | 3.9% |
| Age 18 to 20 | 1.4% | 3.0% | 4.0% |
| Age 21 to 24 | 3.4% | 5.0% | 5.2% |
| Age 25 to 34 | 14.9% | 9.4% | 13.8% |
| Age 35 to 44 | 12.6% | 14.2% | 12.9% |
| Age 45 to 54 | 7.6% | 8.1% | 12.6% |
| Age 55 to 59 | 4.8% | 11.2% | 6.7% |
| Age 60 to 64 | 7.6% | 7.7% | 6.3% |
| Age 65 to 74 | 9.8% | 9.4% | 9.6% |
| Age 75 to 84 | 8.4% | 7.7% | 4.5% |
| Age 85 and over | 1.5% | 1.0% | 1.9% |
| space1 | | | |
| Race | | | |
| | Parowan, UT | Helper, UT | United States |
| White | 87.6% | 91.8% | 59.4% |
| Black | 0.0% | 0.0% | 12.2% |
| Asian | 0.4% | 0.0% | 5.6% |
| Native American | 4.3% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.1% | 1.9% | 3.2% |
| Hispanic | 6.6% | 6.4% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Parowan, UT | Helper, UT | United States |
| Married Population | 54.6% | 61.6% | 49.8% |
| Currently Married | 54.2% | 60.3% | 48.0% |
| Married but Separated | 0.4% | 1.3% | 1.8% |
| Single Population | 45.4% | 38.4% | 50.2% |
| Never Married | 23.3% | 23.0% | 33.8% |
| Divorced | 18.5% | 11.5% | 10.8% |
| Widowed | 3.6% | 3.8% | 5.6% |
| space5 | | | |
| Household Size | 3.00 | 2.44 | 2.60 |
| Households | 983 | 1,037 | 124,010,992 |
| Family Households | 645 | 716 | 80,755,759 |
| Married couple, w/children | 38.9% | 24.9% | 30.5% |
| Married couple, no children | 46.7% | 57.1% | 42.9% |
| Non Family Households | 338 | 321 | 43,255,233 |
| Single householder, w/children | 11.3% | 9.2% | 15.8% |
| Single householder, no children | 3.1% | 8.8% | 10.8% |