| | Glenwood, NM | Reserve, NM | United States |
| Population | 46 | 388 | 329,725,481 |
| Female Population | 23.9% | 62.4% | 50.5% |
| Male Population | 76.1% | 37.6% | 49.5% |
| Median Age | 57.5 | 25.8 | 38.4 |
| space3 | | | |
| Population - 2010 | 214 | 293 | 309,327,143 |
| Population - 2000 | 136 | 387 | 285,036,114 |
| Population - 1990 | 117 | 319 | 251,960,433 |
| Pop. 2000 to Now | -76.5% | -26.4% | 15.6% |
| Pop. 1990 to Now | -72.7% | -10.7% | 30.8% |
| space4 | | | |
| Population Density | 29.9 | 696.6 | 93.4 |
| Land Area | 1.5 | 0.6 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Glenwood, NM | Reserve, NM | United States |
| Age 0 to 4 | 0.0% | 1.8% | 5.9% |
| Age 5 to 9 | 0.0% | 5.4% | 6.1% |
| Age 10 to 14 | 0.0% | 6.7% | 6.6% |
| Age 15 to 17 | 0.0% | 11.6% | 3.9% |
| Age 18 to 20 | 0.0% | 3.4% | 4.0% |
| Age 21 to 24 | 0.0% | 12.9% | 5.2% |
| Age 25 to 34 | 0.0% | 14.2% | 13.8% |
| Age 35 to 44 | 0.0% | 11.9% | 12.9% |
| Age 45 to 54 | 0.0% | 4.4% | 12.6% |
| Age 55 to 59 | 63.0% | 2.1% | 6.7% |
| Age 60 to 64 | 0.0% | 2.8% | 6.3% |
| Age 65 to 74 | 0.0% | 1.3% | 9.6% |
| Age 75 to 84 | 37.0% | 9.8% | 4.5% |
| Age 85 and over | 0.0% | 11.9% | 1.9% |
| space1 | | | |
| Race | | | |
| | Glenwood, NM | Reserve, NM | United States |
| White | 60.9% | 47.9% | 59.4% |
| Black | 0.0% | 0.0% | 12.2% |
| Asian | 0.0% | 0.0% | 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% | 0.0% | 3.2% |
| Hispanic | 39.1% | 52.1% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Glenwood, NM | Reserve, NM | United States |
| Married Population | 63.0% | 23.1% | 49.8% |
| Currently Married | 63.0% | 23.1% | 48.0% |
| Married but Separated | 0.0% | 0.0% | 1.8% |
| Single Population | 37.0% | 76.9% | 50.2% |
| Never Married | 0.0% | 53.9% | 33.8% |
| Divorced | 0.0% | 7.2% | 10.8% |
| Widowed | 37.0% | 15.9% | 5.6% |
| space5 | | | |
| Household Size | 1.31 | 3.72 | 2.60 |
| Households | 35 | 103 | 124,010,992 |
| Family Households | 18 | 35 | 80,755,759 |
| Married couple, w/children | 0.0% | 11.4% | 30.5% |
| Married couple, no children | 100.0% | 8.6% | 42.9% |
| Non Family Households | 17 | 68 | 43,255,233 |
| Single householder, w/children | 0.0% | 68.6% | 15.8% |
| Single householder, no children | 0.0% | 11.4% | 10.8% |