It’s no secret that New Mexico has a wide divide in regions and counties on a number of issues, including health. The blog 24/7 Wall St looked at the most obese county in each state and the least healthy county in each state. It was not the same county for each ranking. In New Mexico, the most obese county is Lea County, in southeastern New Mexico. The center of the oil patch in southeast New Mexico has a 34.7 percent obesity rate; the nation’s obesity rate is 27 percent, while New Mexico overall is 23.6 percent.