| | Hereford, TX | Fruitland, ID | United States |
| Population | 15,043 | 5,903 | 329,725,481 |
| Female Population | 50.5% | 48.9% | 50.5% |
| Male Population | 49.5% | 51.1% | 49.5% |
| Median Age | 29.7 | 37.6 | 38.4 |
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| Population - 2010 | 15,439 | 4,768 | 309,327,143 |
| Population - 2000 | 14,597 | 3,805 | 285,036,114 |
| Population - 1990 | 14,745 | 2,400 | 251,960,433 |
| Pop. 2000 to Now | -1.4% | 46.3% | 15.6% |
| Pop. 1990 to Now | -2.4% | 132.0% | 30.8% |
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| Population Density | 2,450.8 | 2,740.5 | 93.4 |
| Land Area | 6.1 | 2.2 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
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| Est. Total Population By Age | | | |
| | Hereford, TX | Fruitland, ID | United States |
| Age 0 to 4 | 8.7% | 3.0% | 5.9% |
| Age 5 to 9 | 9.1% | 8.3% | 6.1% |
| Age 10 to 14 | 9.5% | 11.2% | 6.6% |
| Age 15 to 17 | 5.4% | 5.6% | 3.9% |
| Age 18 to 20 | 5.1% | 6.8% | 4.0% |
| Age 21 to 24 | 5.7% | 2.2% | 5.2% |
| Age 25 to 34 | 14.0% | 9.7% | 13.8% |
| Age 35 to 44 | 12.1% | 13.3% | 12.9% |
| Age 45 to 54 | 9.5% | 9.3% | 12.6% |
| Age 55 to 59 | 5.4% | 5.9% | 6.7% |
| Age 60 to 64 | 4.5% | 6.8% | 6.3% |
| Age 65 to 74 | 6.9% | 8.8% | 9.6% |
| Age 75 to 84 | 2.4% | 6.9% | 4.5% |
| Age 85 and over | 1.8% | 2.3% | 1.9% |
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| Race | | | |
| | Hereford, TX | Fruitland, ID | United States |
| White | 17.7% | 76.1% | 59.4% |
| Black | 0.9% | 0.0% | 12.2% |
| Asian | 1.1% | 2.1% | 5.6% |
| Native American | 0.4% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.1% | 0.0% | 0.4% |
| Two or More Races | 0.2% | 5.3% | 3.2% |
| Hispanic | 79.6% | 16.5% | 18.4% |
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| Marriage & Family | | | |
| | Hereford, TX | Fruitland, ID | United States |
| Married Population | 52.6% | 50.8% | 49.8% |
| Currently Married | 48.7% | 50.2% | 48.0% |
| Married but Separated | 3.9% | 0.6% | 1.8% |
| Single Population | 47.4% | 49.2% | 50.2% |
| Never Married | 30.1% | 23.2% | 33.8% |
| Divorced | 10.0% | 18.2% | 10.8% |
| Widowed | 7.3% | 7.8% | 5.6% |
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| Household Size | 3.08 | 2.40 | 2.60 |
| Households | 4,819 | 2,450 | 124,010,992 |
| Family Households | 3,566 | 1,403 | 80,755,759 |
| Married couple, w/children | 33.9% | 39.9% | 30.5% |
| Married couple, no children | 33.4% | 39.5% | 42.9% |
| Non Family Households | 1,253 | 1,047 | 43,255,233 |
| Single householder, w/children | 21.5% | 18.9% | 15.8% |
| Single householder, no children | 11.3% | 1.7% | 10.8% |