In yet another sign of how poorly the economy is doing under President Barack Obama, the median household income declined last year in every key battleground state except for Iowa and Wisconsin. The American Community Survey compiled the data.

Nevada and Florida were the hardest hit, seeing declines of 6% and 3%, respectively. New Hampshire, Virginia, Colorado, Pennsylvania, Arizona, Michigan, Ohio, Missouri, North Carolina, New Mexico also saw their median household incomes decline, mirroring national trends.

The median household income in 2008 for the United States was $54, 197. In 2010, it was $51, 114. In 2011, it declined even more to $50,502.

Here are the figures from the most crucial swing states:

Virginia: 2008: $63,956 2010: $62,173 2011: $61,882

Florida: 2008: $49,793 2010: $45,609 2011: $44,299

Ohio: 2008: $49,793 2010: $46,275 2011: $45,749

Colorado: 2008: $59, 720 2010: $55,580 2011: $55,387

If Romney is able to either solidify a lead in any of these states or remains within striking distance of Obama, these numbers indicate voters in these states may be less inclined to give Obama a second term.