Washington, D.C., had the worst high school graduation rate in the country in 2011.

According to the U.S. Department of Education, only 59 percent of high school students who started as freshmen in the 2006-2007 school year graduated four years later from District of Columbia schools.

Second from the bottom is Nevada, with a 62 percent graduation rate.

At the top of the list was Iowa, with an 88 percent graduation rate.

Wisconsin tied for second-best with Vermont, with a graduation rate of 87 percent.

Delaware had a 78 percent graduation rate, while California stood at 76 percent.

The Top States:

1. Iowa -- 88 percent

2. Vermont -- 87 percent

3. Wisconsin -- 87 percent

4. North Dakota -- 86 percent

5. New Hampshire -- 86 percent

6. Nebraska -- 86 percent

7. Indiana -- 86 percent

8. Tennessee -- 86 percent

9. Texas -- 86 percent

Bottom States:

1. Alabama – 72 percent

2. Louisiana -- 71 percent

3. Oregon -- 68 percent

4. Georgia – 67 percent

5. New Mexico -- 63 percent

6. Nevada - 62 percent

7. DC -- 59 percent

I got this story here from cnsnews.com