| | Park City, MT | Leola, SD | United States |
| Population | 1,065 | 374 | 329,725,481 |
| Female Population | 55.1% | 36.9% | 50.5% |
| Male Population | 44.9% | 63.1% | 49.5% |
| Median Age | 35.4 | 42.5 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,023 | 457 | 309,327,143 |
| Population - 2000 | 870 | 462 | 285,036,114 |
| Population - 1990 | 568 | 521 | 251,960,433 |
| Pop. 2000 to Now | 17.8% | -9.1% | 15.6% |
| Pop. 1990 to Now | 80.5% | -19.4% | 30.8% |
| space4 | | | |
| Population Density | 1,114.0 | 504.0 | 93.4 |
| Land Area | 1.0 | 0.7 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Park City, MT | Leola, SD | United States |
| Age 0 to 4 | 6.2% | 9.4% | 5.9% |
| Age 5 to 9 | 8.5% | 4.8% | 6.1% |
| Age 10 to 14 | 6.4% | 7.0% | 6.6% |
| Age 15 to 17 | 7.7% | 2.9% | 3.9% |
| Age 18 to 20 | 0.7% | 1.9% | 4.0% |
| Age 21 to 24 | 1.9% | 3.5% | 5.2% |
| Age 25 to 34 | 17.4% | 9.6% | 13.8% |
| Age 35 to 44 | 10.2% | 11.5% | 12.9% |
| Age 45 to 54 | 14.8% | 21.1% | 12.6% |
| Age 55 to 59 | 3.9% | 7.0% | 6.7% |
| Age 60 to 64 | 6.9% | 11.2% | 6.3% |
| Age 65 to 74 | 9.5% | 4.3% | 9.6% |
| Age 75 to 84 | 4.5% | 3.7% | 4.5% |
| Age 85 and over | 1.4% | 2.1% | 1.9% |
| space1 | | | |
| Race | | | |
| | Park City, MT | Leola, SD | United States |
| White | 96.4% | 97.6% | 59.4% |
| Black | 0.0% | 0.0% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 0.0% | 1.9% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 3.6% | 0.5% | 3.2% |
| Hispanic | 0.0% | 0.0% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Park City, MT | Leola, SD | United States |
| Married Population | 62.3% | 53.6% | 49.8% |
| Currently Married | 62.3% | 53.6% | 48.0% |
| Married but Separated | 0.0% | 0.0% | 1.8% |
| Single Population | 37.7% | 46.4% | 50.2% |
| Never Married | 24.9% | 29.2% | 33.8% |
| Divorced | 6.2% | 8.5% | 10.8% |
| Widowed | 6.7% | 8.8% | 5.6% |
| space5 | | | |
| Household Size | 2.65 | 2.86 | 2.60 |
| Households | 402 | 118 | 124,010,992 |
| Family Households | 316 | 83 | 80,755,759 |
| Married couple, w/children | 31.0% | 36.1% | 30.5% |
| Married couple, no children | 51.6% | 39.8% | 42.9% |
| Non Family Households | 86 | 35 | 43,255,233 |
| Single householder, w/children | 11.1% | 4.8% | 15.8% |
| Single householder, no children | 6.3% | 19.3% | 10.8% |