| | St. Peter, MN | Glenwood Springs, CO | United States |
| Population | 11,699 | 10,017 | 329,725,481 |
| Female Population | 49.4% | 51.8% | 50.5% |
| Male Population | 50.6% | 48.2% | 49.5% |
| Median Age | 32.6 | 35.8 | 38.4 |
| space3 | | | |
| Population - 2010 | 11,193 | 9,506 | 309,327,143 |
| Population - 2000 | 9,747 | 7,736 | 285,036,114 |
| Population - 1990 | 9,421 | 6,561 | 251,960,433 |
| Pop. 2000 to Now | 23.5% | 32.1% | 15.6% |
| Pop. 1990 to Now | 27.7% | 55.8% | 30.8% |
| space4 | | | |
| Population Density | 1,917.9 | 1,716.4 | 93.4 |
| Land Area | 6.1 | 5.8 | 3,531,905.4 |
| Water Area | 0.2 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | St. Peter, MN | Glenwood Springs, CO | United States |
| Age 0 to 4 | 4.7% | 4.9% | 5.9% |
| Age 5 to 9 | 3.9% | 7.2% | 6.1% |
| Age 10 to 14 | 4.7% | 5.5% | 6.6% |
| Age 15 to 17 | 3.0% | 4.2% | 3.9% |
| Age 18 to 20 | 15.6% | 3.7% | 4.0% |
| Age 21 to 24 | 9.8% | 4.9% | 5.2% |
| Age 25 to 34 | 11.1% | 16.6% | 13.8% |
| Age 35 to 44 | 11.9% | 16.0% | 12.9% |
| Age 45 to 54 | 8.6% | 10.4% | 12.6% |
| Age 55 to 59 | 4.5% | 6.3% | 6.7% |
| Age 60 to 64 | 6.7% | 6.5% | 6.3% |
| Age 65 to 74 | 8.6% | 8.1% | 9.6% |
| Age 75 to 84 | 4.1% | 3.3% | 4.5% |
| Age 85 and over | 2.8% | 2.4% | 1.9% |
| space1 | | | |
| Race | | | |
| | St. Peter, MN | Glenwood Springs, CO | United States |
| White | 81.9% | 63.7% | 59.4% |
| Black | 4.2% | 1.2% | 12.2% |
| Asian | 2.0% | 2.2% | 5.6% |
| Native American | 0.5% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.3% | 1.2% | 0.4% |
| Two or More Races | 3.9% | 2.8% | 3.2% |
| Hispanic | 7.2% | 29.0% | 18.4% |
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| Marriage & Family | | | |
| | St. Peter, MN | Glenwood Springs, CO | United States |
| Married Population | 34.3% | 48.7% | 49.8% |
| Currently Married | 34.2% | 45.9% | 48.0% |
| Married but Separated | 0.2% | 2.8% | 1.8% |
| Single Population | 65.7% | 51.3% | 50.2% |
| Never Married | 49.7% | 35.2% | 33.8% |
| Divorced | 10.8% | 12.5% | 10.8% |
| Widowed | 5.1% | 3.5% | 5.6% |
| space5 | | | |
| Household Size | 2.30 | 2.61 | 2.60 |
| Households | 3,795 | 3,762 | 124,010,992 |
| Family Households | 2,271 | 2,167 | 80,755,759 |
| Married couple, w/children | 24.7% | 30.4% | 30.5% |
| Married couple, no children | 46.3% | 40.5% | 42.9% |
| Non Family Households | 1,524 | 1,595 | 43,255,233 |
| Single householder, w/children | 20.8% | 17.9% | 15.8% |
| Single householder, no children | 8.2% | 11.2% | 10.8% |