CHICAGO (AP) — The Chicago-based Social IMPACT Research Center's report on Illinois poverty shows nine counties with poverty rates above 20 percent, meaning at least 1 in 5 residents lives in poverty. The state poverty rate is 15 percent.

A family of four is in poverty if it has an annual income below $23,021. Information is based on the U.S. Census Department's 2011 American Community Survey.

Here are the counties with the highest poverty rates:

Jackson, 33.7

Alexander, 31.3

Champaign, 23.4

Pulaski, 22.4

Coles, 21.8

Saline, 20.8

Hardin, 20.4

McDonough, 20.3

Knox, 20.2

Union, 19.8

Vermilion, 19.8