10 States with the Most and Least Vaccinated Populations
See where your state ranks.
Vaccines are only effective if people get them, and the COVID-19 pandemic revealed a real geographic disparity in vaccination rates. Some states are more widely vaccinated than others. To determine which states vaccinate the most, WalletHub compared each state by 16 key metrics—from vaccinated children to people without health insurance to reported measles outbreaks—and assigned each a score on a scale of 100. These are the ten states with the most and least vaccinated populations.
Colorado ranked 13th in vaccinations of children and teens, and eighth for adult vaccinations—a solid enough performance to land it in the top 10 nationwide.
New Hampshire landed at 11th place for child and teen vaccinations, and 4th for adults.
Wisconsin saw split results, coming in 18th for child and teen vaccinations, and #2 nationwide for adults, which boosted its ranking to #8 overall.
North Dakota ranked #9 nationwide for both child and adult vaccination rates.
According to the survey, Washington state had the tenth-best vaccination rate among children and teens, and the sixth-best among adults and the elderly.
Connecticut ranked #3 nationwide for vaccination of children and teens. Adults in the state didn't fare as well, ranking #22. But overall, Connecticut is the fifth-most-vaccinated state in the nation.
Although Vermont ranked #1 nationwide for the vaccination of adults and the elderly, it managed only 17th place for children and teens. It was still a strong enough record to come in fourth place nationwide.
Solid across the board, Iowa came in #6 for child and teen vaccinations and #7 for adults.
Rhode Island ranked second in the country for the vaccination of children and teens, and 11th for the immunization of adults and the elderly
Massachusetts narrowly surpassed Rhode Island to come in first nationwide, ranking first for child and teen vaccination rates and 12th for the adult and elderly.
West Virginia ranked 49th in child and teen vaccinations and 21st for adults.
According to the survey, Alabama ranked #21 for its vaccination rate among children and teens, and #47 for adults and the elderly, coming in 43rd overall.
Nevada ranked #33 and #49 nationwide for child and adult vaccination rates, respectively.
Texas ranked #39 nationwide for vaccination of children and teens, while adults in the state fared slightly worse, ranking #45.
A 47th-place rank for child and teen vaccinations and 37th for adults and the elderly landed Oklahoma in the bottom 10 overall.
Wyoming ranked 41st in the country for adult vaccination and 48th for children and teens.
Georgia's rates for adult and child vaccination are about equally poor, ranking 45th and 46th in the nation, respectively.
Arizona ranks 42nd and 46th for adult and child vaccinations, respectively.
Alaska ranks 34th for child and teen vaccinations, and 50th for adult vaccinations, putting it in next-to-last place.
Mississippi ranks 51st among all states and the District of Columbia for vaccinations, dead last for both major groups surveyed: children and adults.