Walk-In and Appointments Available!
Cook County is now offering walk-in availability for COVID vaccines at the Tinley Park and Matteson sites today, Thursday, April 22, 2021, through Saturday, April 24, 2021.
Anyone interested in getting a vaccine who doesn't already have an appointment will be allowed to register onsite Wednesday through Saturday at the two mass vaccination locations.
The sites will be open from 8:30 a.m. to 5:30 p.m. Wednesday through Saturday for walk-ins and those with appointments. For more information visit the
Cook County Vaccine Website at