5. South Dakota
Pass Rate: 90.5%
Considering the fact that 858,469 people are living in South Dakota, the number of adults who are still living without any high school credential isn’t something you want to neglect. Back in 2013, there were 81,935 people without any high school credential, and only 2,027 candidates signed up for the GED test. Something more than a half, 1,215 completed the test and 1,100 of them passed it. Even though many people are living without high school credentials in South Dakota, the pass rate is still pretty high.