The county's emergency management agency is installing four new sirens this year.
A public meeting was held tonight to talk about the new warning systems.
They're funded by the public safety sales tax.
The sirens will be placed in Chillicothe, Elmwood Township, Kickapoo Township, and Logan Township.
Vicky Turner of the Peoria County Emergency Agency says, "There are electronic sirens and they have the capability of the public address system which we could utilize even after an event occurs to tell people where shelters would be located."
The sirens can also warn people about things like chemical spills and hazardous material leaks.
After installation, the county will have 84 sirens.