| | Grover, CO | Nunn, CO | United States |
| Population | 186 | 463 | 329,725,481 |
| Female Population | 53.2% | 54.2% | 50.5% |
| Male Population | 46.8% | 45.8% | 49.5% |
| Median Age | 60.3 | 51.1 | 38.4 |
| space3 | | | |
| Population - 2010 | 140 | 419 | 309,327,143 |
| Population - 2000 | 153 | 471 | 285,036,114 |
| Population - 1990 | 135 | 324 | 251,960,433 |
| Pop. 2000 to Now | 5.2% | 5.5% | 15.6% |
| Pop. 1990 to Now | 19.3% | 53.4% | 30.8% |
| space4 | | | |
| Population Density | 312.6 | 124.6 | 93.4 |
| Land Area | 0.6 | 3.7 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Grover, CO | Nunn, CO | United States |
| Age 0 to 4 | 2.2% | 6.9% | 5.9% |
| Age 5 to 9 | 5.9% | 4.5% | 6.1% |
| Age 10 to 14 | 4.8% | 5.2% | 6.6% |
| Age 15 to 17 | 2.2% | 1.7% | 3.9% |
| Age 18 to 20 | 3.2% | 3.7% | 4.0% |
| Age 21 to 24 | 3.8% | 2.4% | 5.2% |
| Age 25 to 34 | 13.4% | 9.9% | 13.8% |
| Age 35 to 44 | 4.3% | 11.4% | 12.9% |
| Age 45 to 54 | 7.0% | 15.8% | 12.6% |
| Age 55 to 59 | 2.7% | 21.2% | 6.7% |
| Age 60 to 64 | 14.0% | 8.4% | 6.3% |
| Age 65 to 74 | 12.4% | 4.8% | 9.6% |
| Age 75 to 84 | 13.4% | 1.5% | 4.5% |
| Age 85 and over | 10.8% | 2.6% | 1.9% |
| space1 | | | |
| Race | | | |
| | Grover, CO | Nunn, CO | United States |
| White | 92.5% | 77.3% | 59.4% |
| Black | 0.0% | 0.4% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 0.0% | 0.9% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.9% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 7.0% | 3.9% | 3.2% |
| Hispanic | 0.5% | 16.6% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Grover, CO | Nunn, CO | United States |
| Married Population | 53.1% | 44.6% | 49.8% |
| Currently Married | 53.1% | 44.0% | 48.0% |
| Married but Separated | 0.0% | 0.5% | 1.8% |
| Single Population | 46.9% | 55.4% | 50.2% |
| Never Married | 26.5% | 16.8% | 33.8% |
| Divorced | 14.2% | 33.4% | 10.8% |
| Widowed | 6.2% | 5.2% | 5.6% |
| space5 | | | |
| Household Size | 2.07 | 2.06 | 2.60 |
| Households | 90 | 225 | 124,010,992 |
| Family Households | 49 | 110 | 80,755,759 |
| Married couple, w/children | 32.7% | 29.1% | 30.5% |
| Married couple, no children | 55.1% | 49.1% | 42.9% |
| Non Family Households | 41 | 115 | 43,255,233 |
| Single householder, w/children | 2.0% | 6.4% | 15.8% |
| Single householder, no children | 10.2% | 15.5% | 10.8% |