The roads around your child's or grandchild's school may not be as safe as you think.

One in three drivers are doing unsafe things, like being on their cell phone, in school zones.

New research from Zendrive says from 4 - 5 p.m. is the most dangerous time to be on or near roads around schools.

So that's something to keep in mind, even if you're not picking up kids.

It says afternoon pick-up is 40 percent more dangerous than the morning pick-up.

The company mapped out the areas around 75,000 schools across the country to see which states are the safest.

States in green are the safest overall around schools. And red is the least safe.

You can see a breakdown by county and check out your child's specific school here.