A State-by-State Analysis of Income Trends
Inequality has been increasing in Arizona for nearly two decades. This can be observed by ranking all Arizona families with children according to their income level, dividing them into five groups (or fifths) of equal size, and calculating the average income of each fifth of families. This analysis shows by the mid-1990s:
The Long-Term Trend
Since the late 1970s, income inequality has increased in Arizona. The long-term economic growth of the past two decades was not shared evenly among the poor, the rich, and the middle class. Instead, the top fifth of families with children fared substantially better than other income groups.
The gap between the top fifth of families and the bottom fifth of families doubled since the 1970s. The gap between the rich and the poor increased faster than in all but 3 states. The gap between the rich and the middle class increased faster than in all but 2 states.
The Recent Trend
Over the past decade, income inequality worsened in Arizona. The average incomes of the richest fifth of families have increased while the income of the poor and middle class families declined.
The gap between the top fifth of families and the bottom fifth of families increased faster than in any other state between the mid-1980s and the mid-1990s, while the gap between the rich and the middle class increased faster than in all but 1 state.
1. The direction of this change was not statistically significant at the 95 percent level of confidence.
Return to State List