| | Sunland Park, NM | Monroe, MI | United States |
| Population | 16,488 | 20,344 | 329,725,481 |
| Female Population | 53.4% | 53.8% | 50.5% |
| Male Population | 46.7% | 46.2% | 49.5% |
| Median Age | 32.4 | 37.9 | 38.4 |
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| Population - 2010 | 14,340 | 20,543 | 309,327,143 |
| Population - 2000 | 13,309 | 22,076 | 285,036,114 |
| Population - 1990 | 8,179 | 22,902 | 251,960,433 |
| Pop. 2000 to Now | 38.6% | -12.5% | 15.6% |
| Pop. 1990 to Now | 125.6% | -15.6% | 30.8% |
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| Population Density | 1,267.5 | 2,248.5 | 93.4 |
| Land Area | 13.0 | 9.0 | 3,531,905.4 |
| Water Area | 0.3 | 1.2 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Sunland Park, NM | Monroe, MI | United States |
| Age 0 to 4 | 9.7% | 7.9% | 5.9% |
| Age 5 to 9 | 8.5% | 7.3% | 6.1% |
| Age 10 to 14 | 7.0% | 5.9% | 6.6% |
| Age 15 to 17 | 4.8% | 3.0% | 3.9% |
| Age 18 to 20 | 2.7% | 3.0% | 4.0% |
| Age 21 to 24 | 7.1% | 4.2% | 5.2% |
| Age 25 to 34 | 13.9% | 15.5% | 13.8% |
| Age 35 to 44 | 13.3% | 11.7% | 12.9% |
| Age 45 to 54 | 10.2% | 11.7% | 12.6% |
| Age 55 to 59 | 4.1% | 7.4% | 6.7% |
| Age 60 to 64 | 5.4% | 7.2% | 6.3% |
| Age 65 to 74 | 8.0% | 9.0% | 9.6% |
| Age 75 to 84 | 3.8% | 4.0% | 4.5% |
| Age 85 and over | 1.5% | 2.3% | 1.9% |
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| Race | | | |
| | Sunland Park, NM | Monroe, MI | United States |
| White | 4.3% | 87.0% | 59.4% |
| Black | 0.9% | 5.9% | 12.2% |
| Asian | 0.3% | 0.4% | 5.6% |
| Native American | 0.2% | 0.7% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.3% | 0.4% |
| Two or More Races | 0.0% | 3.2% | 3.2% |
| Hispanic | 94.3% | 2.5% | 18.4% |
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| Marriage & Family | | | |
| | Sunland Park, NM | Monroe, MI | United States |
| Married Population | 51.3% | 43.5% | 49.8% |
| Currently Married | 47.4% | 42.5% | 48.0% |
| Married but Separated | 3.9% | 1.0% | 1.8% |
| Single Population | 48.7% | 56.5% | 50.2% |
| Never Married | 37.4% | 33.0% | 33.8% |
| Divorced | 5.4% | 16.6% | 10.8% |
| Widowed | 5.9% | 6.9% | 5.6% |
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| Household Size | 2.74 | 2.39 | 2.60 |
| Households | 6,012 | 8,323 | 124,010,992 |
| Family Households | 4,073 | 4,809 | 80,755,759 |
| Married couple, w/children | 28.4% | 28.7% | 30.5% |
| Married couple, no children | 30.3% | 37.7% | 42.9% |
| Non Family Households | 1,939 | 3,514 | 43,255,233 |
| Single householder, w/children | 27.6% | 20.9% | 15.8% |
| Single householder, no children | 13.7% | 12.6% | 10.8% |