I don't know about Low IQ but I've always said that Republicans are the lowest educated folks you can meet. I'm not saying that you can't be a Harvard grad with a PHD in Economics if you're a republican, but the highest majority of uneducated people, people who are sheep (sheeple if you will) and don't study or learn the facts and act more on ignorance than rationale are republicans. The more educated people seem to think for themselves and I found usually fall somewhere between conservatives and liberals but are themselves sheeple and side with what they feel is the lesser of 2 evils when it comes to politics. I'm no good either I say fuck the whole system!!
Bottom 10 states (for HS graduation)
Taking California out and New Mexico (which goes back n forth but currently is democratic) the other 8 are all conservative states
Top 10 for High School graduation