Household Relationship, 2010
Among all Arizona residents counted in 2010, householders represented 37 percent. Others living in households included spouses (18 percent), children (29 percent), other relatives (7 percent), unmarried partners (3 percent), and other nonrelatives (4 percent). The remainder of the population (2 percent) lived in group quarters. Compared to the national average, Arizona had fewer householders (due to Arizona’s higher average household size) and fewer spouses, but more unmarried partners. Arizona also had more relatives other than a child living with the householders.
The percentages in each category vary across Arizona’s counties. For example, the proportion of unmarried partners is highest in La Paz and Mohave counties, in which senior citizens account for high percentages of the populace.