| | Kearny, AZ | Hayden, AZ | United States |
| Population | 2,198 | 374 | 329,725,481 |
| Female Population | 47.1% | 46.0% | 50.5% |
| Male Population | 52.9% | 54.0% | 49.5% |
| Median Age | 32.3 | 46.6 | 38.4 |
| space3 | | | |
| Population - 2010 | 1,956 | 660 | 309,327,143 |
| Population - 2000 | 2,249 | 892 | 285,036,114 |
| Population - 1990 | 2,262 | 909 | 251,960,433 |
| Pop. 2000 to Now | -1.9% | -29.0% | 15.6% |
| Pop. 1990 to Now | -2.5% | -30.4% | 30.8% |
| space4 | | | |
| Population Density | 814.7 | 295.7 | 93.4 |
| Land Area | 2.7 | 1.3 | 3,531,905.4 |
| Water Area | 0.0 | 0.0 | 264,836.8 |
| space | | | |
| Est. Total Population By Age | | | |
| | Kearny, AZ | Hayden, AZ | United States |
| Age 0 to 4 | 6.1% | 2.7% | 5.9% |
| Age 5 to 9 | 9.3% | 2.7% | 6.1% |
| Age 10 to 14 | 8.2% | 6.2% | 6.6% |
| Age 15 to 17 | 4.9% | 1.1% | 3.9% |
| Age 18 to 20 | 3.2% | 11.2% | 4.0% |
| Age 21 to 24 | 6.6% | 3.7% | 5.2% |
| Age 25 to 34 | 16.6% | 7.2% | 13.8% |
| Age 35 to 44 | 6.0% | 10.7% | 12.9% |
| Age 45 to 54 | 8.2% | 19.3% | 12.6% |
| Age 55 to 59 | 2.3% | 6.7% | 6.7% |
| Age 60 to 64 | 2.8% | 9.4% | 6.3% |
| Age 65 to 74 | 19.4% | 7.5% | 9.6% |
| Age 75 to 84 | 4.2% | 7.2% | 4.5% |
| Age 85 and over | 2.0% | 4.5% | 1.9% |
| space1 | | | |
| Race | | | |
| | Kearny, AZ | Hayden, AZ | United States |
| White | 51.8% | 2.1% | 59.4% |
| Black | 0.0% | 0.0% | 12.2% |
| Asian | 1.9% | 0.0% | 5.6% |
| Native American | 0.1% | 0.0% | 0.6% |
| Hawaiian, Pacific Islander | 0.0% | 0.0% | 0.2% |
| Other | 0.0% | 0.0% | 0.4% |
| Two or More Races | 2.7% | 0.0% | 3.2% |
| Hispanic | 43.5% | 97.9% | 18.4% |
| space2 | | | |
| Marriage & Family | | | |
| | Kearny, AZ | Hayden, AZ | United States |
| Married Population | 58.2% | 24.8% | 49.8% |
| Currently Married | 53.2% | 24.8% | 48.0% |
| Married but Separated | 5.0% | 0.0% | 1.8% |
| Single Population | 41.8% | 75.2% | 50.2% |
| Never Married | 29.3% | 47.4% | 33.8% |
| Divorced | 7.7% | 15.1% | 10.8% |
| Widowed | 4.8% | 12.7% | 5.6% |
| space5 | | | |
| Household Size | 2.90 | 2.65 | 2.60 |
| Households | 759 | 141 | 124,010,992 |
| Family Households | 518 | 79 | 80,755,759 |
| Married couple, w/children | 39.8% | 7.6% | 30.5% |
| Married couple, no children | 42.7% | 35.4% | 42.9% |
| Non Family Households | 241 | 62 | 43,255,233 |
| Single householder, w/children | 16.2% | 36.7% | 15.8% |
| Single householder, no children | 1.4% | 20.3% | 10.8% |