All of the state's 21 counties now have a substantial or high risk of community transmission.

Last month, the CDC said it would start recommending everyone in substantial or high-risk areas mask up.

MORE: Check COVID transmission levels in your county and CDC masks updates

Now with Warren County going from a moderate risk to substantial, every county in the state is now at the level where the CDC is recommending mask wearing.

At the beginning of the month, only two New Jersey counties were considered high risk of community transmission.

That’s now up to nine counties: Burlington, Camden, Cape May, Cumberland, Gloucester, Hunterdon, Monmouth, Ocean, and Salem.

Mask mandates are still not in effect for most of the state.