A recent study has ranked the best and worst states to retire in 2026, with South Dakota listed as one of the top states and Tennessee considered one of the worst. However, there is some inconsistency in the rankings, as Tennessee is also being touted as a standout retirement destination due to its affordability and lifestyle. South Carolina has been named the best state for military retirees, while other states like Utah and Minnesota are also being considered as desirable retirement destinations.