How often are hazardous materials passing right by Midwestern drivers, homes?

In an analysis by USA Today Network partners across the Midwest, we looked at the data for incidents involving hazardous materials. We found that 20% of all hazmat incidents since 2013 happened in Indiana, Michigan, Ohio, Kentucky and Illinois.

Here's a look at our investigation into transporting hazardous materials through the Midwest.

▶ Huge amounts of hazardous materials pass through Midwest every day. How safe are residents?

▶ A deeper look at the numbers

▶ 6 things to know from our investigation

▶ Top hazardous material incidents in the Midwest since 2013, by state

• INDIANA: Rear-end collisions and derailments among most costly hazmat incidents

• OHIO: 4 of the 5 costliest incidents involve Norfolk Southern

• MICHIGAN: Top incidents all involved tanker trucks

• KENTUCKY: Derailments, mudslides and more

• ILLINOIS: Combustible liquids on trains lead to explosions, release of toxic chemicals

IndyStar, Detroit Free-Press, Cincinnati Enquirer, Louisville Courier Journal and Peoria Journal-Star journalists contributed to this investigation.