Downtown Dalton, Ga.

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Dalton, Ga., is the least educated city in the South, and ranks second in the United States, according to the census bureau.

Nationwide, nearly 30 percent of adults over age 25 had at least a bachelor's degree in 2013. The national median income was $52,250 last year. Metro areas with a less educated workforce generally had lower income levels.

Here are the five least educated metro cities in the nation:

• 1. Kingman, Ariz., 11.3 percent of population have bachelor's degrees; median income of $39,058

• 2. Dalton, Ga., 12.2 percent of population have bachelor's degrees; median income of $37,659

• 3. El Centro, Calif., 12.7 percent of population have bachelor's degrees; median income of $43,310

• 4. Farmington, New Mexico, 12.9 percent of population have bachelor's degrees; median income of 43,787

• 5. Hanford-Corcoran, Calif., 12.9 percent of population have bachelor's degrees; median income of $45,774

Source: U.S. Bureau of Census, American Community Survey for 2013 for U.S. metropolitan areas as compiled by Milliken Institute