According to recently released 2010 U.S. Census data, Nebraska had the highest median income growth out of all 50 states between 2009 and 2010. The state's median income rose 0.7 percent over the year to $48,408.
The 2010 American Community Survey's one-year estimates found that in addtion to Nebraska, nearby prairie states North and South Dakota, West Virginia and Virginia were the only states to have growth in their median income. Washington, D.C. also experienced a growth, besting Nebraska with an increase of 0.8 percent.
Nationally, real median income had dropped 2.2 percent to just over $50,046. No state posted a gain in real median income; 35 states experienced a decrease in real median income. Nevada, Connecticut and Vermont posted the largest declines in median income, a loss of 6.1 percent.
Overall, the 2010 ACS found that Maryland had the nation's highest median income, $68,854. Mississippi has the lowest at $36,851.
Information on changes in household income in all 50 states can be found in the American Community Survey Brief: Household Income for States: 2009 and 2010.