From the Wall Street Journal:
We compared the average premiums in states that already have ObamaCare-like provisions in their laws and found that consumers in New Jersey, New York and Vermont already pay well over twice what citizens in many other states pay. Consumers in Maine and Massachusetts aren't far behind. Those states will likely see a small increase.
By contrast, Arizona, Arkansas, Georgia, Idaho, Iowa, Kentucky, Missouri, Ohio, Oklahoma, Tennessee, Utah, Wyoming and Virginia will likely see the largest increases—somewhere between 65% and 100%. Another 18 states, including Texas and Michigan, could see their rates rise between 35% and 65%.