Elkton's event will run from 5-8 p.m. in the rear parking lot of Circuit Court and Charlie Brown Center, off of East High Street.
Kids will have the opportunity to interact with police officers and firefighters, including a K-9 demonstration and an inside look at police cars and fire trucks.
The free event features food, Dunk An Officer in a Tank, basketball, quarterback toss, moon bounce, music, and a tour of the club.
It is sponsored by the Elkton Fraternal Order of Police and the Boys & Girls Club.
The North East event will take place at the unit from 5:30-7:30 p.m.
There will be demonstrations from the North East Fire Department and North East Police Department.
The event also includes a barbecue, moon bounce, games, and booths manned by area businesses.
Last year, North East's National Night Out attracted about 200 people and unit director Fernando Estep thinks this year's attendance could potentially double that number.
The Rising Sun Boys & Girls Club will be held from 5:30-8 p.m. at the unit on 51 Colonial Way.
There will be a chance to dunk Police Chief Chip Peterson, a moon bounce, face painting, free food, games, music, and pony rides.
Other Rising Sun police officers will be on hand with displays and crime prevention information.