Income equality

Chart: The wealthiest regions of the United States

Adapted from Brookings; Chart: Naema Ahmed/Axios

The most prosperous areas of the U.S. are maintaining their wealth, and the poorest places are stuck in poverty after decades of economic progress, according to a September report by the Brookings Institution's Hamilton Project.

The big picture: For decades, there was convergence between the states with the highest and lowest median wages, and the fastest economic growth generally belonged to the counties with the lowest median earnings. But those trends have ended. As depicted in the charts above, the closing of the gap between higher and lower income regions has ended — and even reversed course in some areas.

Chart: The most common jobs, by age and pay

Data: Bureau of Labor Statistics; Interactive: Lazaro Gamio/Axios