Map: Utah, Wyoming, Idaho are the most Republican states.

Which State Is the Most Republican? And Which State Is Least?

Which State Is the Most Republican? And Which State Is Least?

A partnership of Slate and the New America Foundation.
Aug. 28 2012 4:59 PM

What Are the Most Republican States?

Utah, Wyoming, Idaho are. And what state is least Republican?


No matter where you go, you’re guaranteed to find a sizeable chunk of people whose political opinions make you cringe. But in recent decades, red states have become redder and blue states bluer. Maybe it’s because individuals prefer places where people agree with them, or maybe they’ve succumbed to the pressure to conform.

But even today, the popular paradigm of blue and red and swing states doesn’t capture the whole picture. To mark the Republican National Convention in Tampa, Fla., we made a map showing where GOP supporters live using recent Gallup polling data on party identification. The redder a state, the greater percentage of its people consider themselves Republicans. Even the state with the fewest Republicans is still pretty red: 1 out of every 4 Rhode Islanders is a Republican. Utah, at 63.8 percent Republican, is the purest red, even though 1 of the 3 members of Congress who represent it is a Democrat. Stay tuned for our Democratic identification map next week.

Click and drag the map to see Alaska and Hawaii.

Nick McClellan is web production manager of

Chris Kirk is a web developer at New York magazine and Slate’s former interactives editor. Follow him on Twitter.