Unvaccinated Americans are most likely to be younger, male, black and living in a rural area, a DailyMail.com analysis of data from the Centers for Disease Control and Prevention (CDC) show.
Around 66.9 percent of the eligible U.S. population - aged 12 and older - has received at least one dose and 60.3 are fully vaccinated.
However, there is still a large segment of the population that hasn't been immunized, which is concerning as the Indian 'Delta' variant continues to spread.
What's more many are unlikely to receive the shots unless it is mandated to them by either the government or an employer.
Senior citizens and Asian Americans were also found to be most likely to have received the vaccine.
White and black Americans are falling behind in the vaccine rollout, while Asian Americans are the most vaccinated group
Younger people are less likely to have received the vaccine than older Americans. Many young people either do not fear the virus or do fear the vaccine
Americans under the age of 40 are not receiving the vaccine at the same rate as their older peers, with less than half of this age group receiving the shot.
Meanwhile, more than three-quarters of Americans above age 40 have received the shot.
The 18-24 age group, for example, accounts for 9.2 percent of the U.S. population, but only eight percent of the vaccinated population.
This group may be especially hard to convince, with a survey finding that 25 percent of unvaccinated people aged 18-25 have no intention of ever receiving the shots.
Young people who do not want to get vaccinated often either do not trust the vaccines or believe that since they are young and healthy, they are safe from the virus anyways.
This is a misconception, though, as COVID can cause harmful long-term conditions such as myocarditis and memory issues in survivors of any age.
Because every American under the age of 12 - 14.4 percent of the population - is unvaccinated - other age groups should have a higher vaccine share than population share.
Males are less likely to have received a COVID-19 vaccine than females so far
Americans aged 25 to 39 account for 20.2 percent of the vaccinated population and 20.5 percent of the total U.S. population.
For comparison, the most vaccinated age group are those aged 50 to 64 - who make up 25.5 percent of the vaccinated population despite only accounting for 19.4 percent of the U.S. population.
In total, only 49 percent of people aged 16 and 17, 53 percent of people aged 18 to 24 and 57 percent of people 25 through 39 have received at least one shot of a vaccine.
Numbers jump from there, with 66 percent of Americans aged 40 to 49, 76 percent aged 50 to 64, 92 percent aged 65 to 74 and 87 percent of Americans 75 and older being at least partially vaccinated.
The gender split in this county is
