4. Mississippi
IM Score: 126
Annual median wage: $88,210
Job growth: 15.0%
Cost of living index: 86.0
In case you are looking for a state that will offer you a cheap living, you can’t get better than Mississippi that ranked fourt on our list of best states for mechanical engineers since the state has the lowest cost of living index in the United States. The downside of being a mechanical engineer in Mississippi is the fact that there will be only 40 average annual job openings in the future.