| | Jerome, AZ | Dewey-Humboldt, AZ | United States |
| Population | 445 | 4,304 | 329,725,481 |
| Female Population | 53.5% | 49.7% | 50.5% |
| Male Population | 46.5% | 50.3% | 49.5% |
| Median Age | 57.2 | 52.9 | 38.4 |
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| Population - 2010 | 446 | 3,891 | 309,327,143 |
| Population - 2000 | 329 | 6,295 | 285,036,114 |
| Population - 1990 | 403 | 3,640 | 251,960,433 |
| Pop. 2000 to Now | 39.5% | -32.6% | 15.6% |
| Pop. 1990 to Now | 13.9% | 16.5% | 30.8% |
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| Population Density | 515.1 | 231.5 | 93.4 |
| Land Area | 0.9 | 18.6 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Jerome, AZ | Dewey-Humboldt, AZ | United States |
| Age 0 to 4 | 4.3% | 4.4% | 5.9% |
| Age 5 to 9 | 2.5% | 6.3% | 6.1% |
| Age 10 to 14 | 1.1% | 5.9% | 6.6% |
| Age 15 to 17 | 2.5% | 3.5% | 3.9% |
| Age 18 to 20 | 0.0% | 1.8% | 4.0% |
| Age 21 to 24 | 0.0% | 1.4% | 5.2% |
| Age 25 to 34 | 7.9% | 9.2% | 13.8% |
| Age 35 to 44 | 5.2% | 9.0% | 12.9% |
| Age 45 to 54 | 18.4% | 10.9% | 12.6% |
| Age 55 to 59 | 19.3% | 6.0% | 6.7% |
| Age 60 to 64 | 8.1% | 7.2% | 6.3% |
| Age 65 to 74 | 23.8% | 20.4% | 9.6% |
| Age 75 to 84 | 7.0% | 10.3% | 4.5% |
| Age 85 and over | 0.0% | 3.7% | 1.9% |
| space1 | | | |
| Race | | | |
| | Jerome, AZ | Dewey-Humboldt, AZ | United States |
| White | 76.6% | 85.7% | 59.4% |
| Black | 0.0% | 0.3% | 12.2% |
| Asian | 0.0% | 0.0% | 5.6% |
| Native American | 14.6% | 0.5% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 1.6% | 2.8% | 3.2% |
| Hispanic | 7.2% | 10.6% | 18.4% |
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| Marriage & Family | | | |
| | Jerome, AZ | Dewey-Humboldt, AZ | United States |
| Married Population | 40.2% | 56.5% | 49.8% |
| Currently Married | 37.1% | 54.6% | 48.0% |
| Married but Separated | 3.2% | 1.9% | 1.8% |
| Single Population | 59.8% | 43.5% | 50.2% |
| Never Married | 23.4% | 19.0% | 33.8% |
| Divorced | 30.7% | 15.8% | 10.8% |
| Widowed | 5.6% | 8.7% | 5.6% |
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| Household Size | 1.97 | 2.60 | 2.60 |
| Households | 226 | 1,650 | 124,010,992 |
| Family Households | 108 | 1,128 | 80,755,759 |
| Married couple, w/children | 0.0% | 17.9% | 30.5% |
| Married couple, no children | 53.7% | 65.5% | 42.9% |
| Non Family Households | 118 | 522 | 43,255,233 |
| Single householder, w/children | 28.7% | 7.6% | 15.8% |
| Single householder, no children | 17.6% | 9.0% | 10.8% |