In the Central Region (IN, KS, MI, MO, NE, ND, OH,PA, SD, WI) marriage equality has 59%-36% support.
In the Western region (AK, AZ, CO, ID, MT, NM*, NV, OR, UT**, WY) marriage equality has 53%-34% support.
In the Southern region (AL, AR, FL, GA, LA, MS, NC, OK, SC, TN, TX, KY, VA, WV) marriage equality is split 46%-46%.It should be noted that since the poll was taken New Mexico* enacted marriage equality permanently through a state supreme court ruling. Utah** also had marriage equality for a 17-day window when a federal judge struck down their same-sex marriage ban but that ruling is on hold under appeal to the 10th Appellate Circuit thanks to a stay issued by the U.S. Supreme Court.
Hat/tip to LGBT Think Progress