California has earned the dubious honor of having the worst bullying problem in the U.S., according to a new study.

Researchers at WalletHub examined 47 states and the District of Columbia on 20 key metrics ranging from bullying-incident rates to truancy costs for schools, to the share of high school students bullied online.

“About 20% of students ages 12-18 experience bullying, whether in-person, online or both,” WalletHub states.

The states with the worst bullying problems according to the study are:

• California
• Alaska
• Nevada
• New Jersey
• Louisiana

Those with the least rated bullying problems are:

• Delaware
• Massachusetts
• Rhode Island
• District of Columbia
• Maine

WalletHub produced an interactive map with state bullying ranks (above) and also broke down California’s overall bullying ranks (below) into several specific categories.

Bullying Prevalence & Prevention in California (1=Biggest, 24=Avg.):

• Overall rank for California: 1st
• 3rd – % of High School Students Bullied on School Property
• 29th – % of High School Students Bullied Online
• 1st – % of High School Students Involved in Physical Fights at School
• 18th – % of High School Students Who Missed School for Fear of Being Bullied
• 1st – Cost of Truancy for Schools Due to Bullying
• 9th – State Anti-Bullying Laws & Policies
• 2nd – State Anti-Cyberbullying Laws Requiring School Policy