How New Mexico Became the State With the Highest Rate of Full Vaccinations New Mexico, which has one of the highest poverty rates in the U.S., is a vaccination pacesetter thanks to decisive political decisions, homegrown technology and cooperation across distances. More than 57 percent of New Mexico’s adult population has received at least one dose of the vaccine. And nearly 38 percent of adults are fully vaccinated, a higher rate than in any other state.Credit...Cate Dingley/Bloomberg April 14, 2021, 1:31 p.m. ET ALBUQUERQUE — Despite having one of the highest poverty rates in the country, New Mexico is surging past states with far more resources in the race to achieve herd immunity against the coronavirus.