Vaccinations are considered to be among the most valuable contributions to modern medicine. They have drastically reduced the prevalence of certain terrible diseases, including polio, tetanus, measles and chicken pox. One disease, smallpox, has even been eradicated completely, with zero natural cases since 1977.

But there's been controversy over the years about vaccinations over the years, resulting in some parents choosing to not vaccinate their kids. When it comes to vaccinations, some U.S. states are more likely than others when it comes to parents choosing to vaccinate.

In order to see where people are most responsible about getting vaccines, the website WalletHub took a look at all 50 states, plus the District of Columbia across 18 different categories, and the data set ranges from share of vaccinated children to share of people without health insurance to presence of reported measles outbreaks.

So how did Iowa do? We ranked #13 out of 51. Overall, the Midwest and Northeast ranked highest among states that vaccinate.

Check out the full U.S. ranking by state below, and check out more from the WalletHub study by clicking here.

Source: WalletHub