HPV Vaccine Rates Vary Dramatically Across U.S. States — Here’s Why That Matters for Your Child’s Health

New research reveals that how likely a teenager is to get the HPV vaccine depends heavily on which state they live in. While some states have nearly 9 out of 10 teens vaccinated, others are struggling to reach even half that number. The findings, published in a recent JAMA Pediatrics research letter, highlight deep geographic gaps in protection against a virus linked to several types of cancer.

Experts say this isn’t just a map problem — it’s a health equity problem. And it means that families in certain parts of the country may need to work harder to ensure their children are protected.

What the Study Found: A State-by-State Look at HPV Vaccination

The analysis, led by Dr. Chinenye Lynette Ejezie of Towson University in Maryland, used data from the 2023 National Immunization Survey-Teen (NIS-Teen). This survey collects vaccination records on U.S. adolescents ages 13 to 17. The researchers looked at whether each teen had received at least one dose of the HPV vaccine. They compared every state against Alabama, where 21% of teens had not received any HPV vaccine dose — a figure that actually matches the national goal set by the Healthy People 2030 initiative.

What they found was striking:

• Northeastern states performed significantly better than Alabama. In Rhode Island, only 8% of teens were unvaccinated. Massachusetts had just 11% unvaccinated, and New Hampshire had 15%. When researchers calculated the odds of being vaccinated compared to Alabama, Rhode Island was about three times more likely to have vaccinated teens.
• Several Southern states lagged far behind. Mississippi had the worst rate, with 39% of teens unvaccinated. Oklahoma followed at 36%, Georgia at 35%, Kentucky at 34%, and West Virginia at 34%. In these states, the odds of being vaccinated were less than half that of Alabama.
• Even within the same region, rates varied wildly. In the South, the unvaccinated rate ranged from a low of 14% in Delaware and Virginia to a high of 39% in Mississippi. In the West, Hawaii had only 14% unvaccinated, while Idaho had 30%. The Northeast showed the biggest gap: Rhode Island’s 8% versus New Jersey’s 34%.

The study included responses from 16,057 adolescents across the country. Researchers noted that the disparities are “driven not only by broad geographic patterns but also by marked heterogeneity within regions.” In plain language: where you live matters a lot, but even neighboring states can have very different vaccination success stories.

Why HPV Vaccination Rates Matter for Your Family

HPV, or human papillomavirus, is extremely common. According to the Centers for Disease Control and Prevention (CDC), nearly everyone who is sexually active will get HPV at some point in their life. Most infections go away on their own, but some types of HPV can cause cancer. The virus is linked to cervical, vaginal, vulvar, penile, anal, and throat cancers.

The HPV vaccine is a powerful tool. It prevents more than 90% of HPV-related cancers. The American Academy of Pediatrics recommends that every adolescent receive the vaccine starting between ages 9 and 12. The goal of the federal Healthy People 2030 initiative is to have 80% of adolescents complete the two- or three-dose series.

Currently, the 2024 NIS-Teen data shows that about 78.2% of U.S. teens ages 13-17 have received at least one dose. However, only 62.9% have completed the entire series. That means millions of teenagers are still unprotected against a preventable cancer-causing infection.

For parents, this means that if you live in a state with low vaccination rates, your child may be at higher risk simply because the virus can spread more easily in a community with less immunity. It also means you may need to be more proactive in asking your pediatrician about the vaccine.

What Drives These Geographic Gaps? Experts Explain

Why do some states do so much better than others? Dr. Janet Siddiqui, a pediatrician with Johns Hopkins Community Physicians in Maryland, told MedPage Today that multiple factors are at play.

• Access to care: States with more rural areas often have fewer healthcare providers and longer travel distances to clinics. This makes it harder for families to schedule and keep vaccine appointments.
• Funding and awareness: Some states invest more money in public health campaigns that educate families about the HPV vaccine. Others lack the resources to run school-based vaccination clinics or community outreach programs.
• School requirements: A few states, like Rhode Island, have made the HPV vaccine mandatory for school attendance. This dramatically boosts vaccination rates because it removes the “optional” label and normalizes the shot.
• Provider and staff attitudes: Dr. Siddiqui emphasized that the relationship between families and their doctors is crucial. When a pediatrician or family physician strongly recommends the HPV vaccine, families are more likely to say yes. But if clinic staff members treat it as optional — because it’s not required by schools — parents may skip it. “It’s not optional — it’s an anti-cancer vaccine, and it’s safe and effective,” Siddiqui said.
• Vaccine hesitancy: Misinformation about vaccines can spread quickly, especially in communities with limited access to accurate health information. Some parents worry about side effects or believe myths that the vaccine encourages risky sexual behavior — claims that have been repeatedly debunked by medical research.

Study Limitations to Keep in Mind

The researchers noted one important limitation: the data relies on parents and caregivers accurately remembering and reporting their teen’s vaccination history. This is called “recall bias.” It’s possible that some parents forgot or misremembered whether their child received the vaccine. However, the NIS-Teen survey is considered a gold standard for tracking vaccination rates across the country.

Practical Takeaways for Parents and Caregivers

Whether you live in a high-vaccination state like Rhode Island or a low-vaccination state like Mississippi, here’s what you can do to protect your teen:

• Talk to your child’s doctor at the next visit. Ask specifically about the HPV vaccine. The CDC recommends it for all boys and girls starting at age 9 or 10. Early vaccination provides the best protection because the immune system responds better at younger ages.
• Don’t wait for a school requirement. Only a handful of states mandate the HPV vaccine for school. Even if your state doesn’t, the vaccine is still strongly recommended by every major medical organization, including the American Academy of Pediatrics and the American Cancer Society.
• Complete the full series. The HPV vaccine is given in two or three doses, depending on the age when the first shot is given. Make sure your teen gets all the recommended doses. One dose provides some protection, but the full series offers the best long-term immunity.
• Push for better policies in your state. If you live in a state with low vaccination rates, consider advocating for school-based vaccination clinics, better public health funding, or even a school vaccine requirement. Research shows that these policies save lives.
• Trust your pediatrician. Dr. Siddiqui reminded that “pediatricians or the family physicians are the ones that families trust and go to for advice.” If you have questions or concerns about the HPV vaccine, bring them up with a medical professional you already know and trust.

The Bottom Line

HPV vaccination is one of the most effective cancer prevention tools we have. Yet this new study shows that where you live can determine whether your child gets this protection. The gaps are not random — they reflect differences in policy, funding, access, and awareness. For parents, the message is clear: don’t assume your child is protected. Ask your doctor. Schedule the shots. Help your community close the gap. Because every teen, no matter their zip code, deserves protection against a preventable cancer.

Source: MedPage Today