Below is a list of Port Barrington IL zip codes. For your research we have also included Port Barrington Area Code, Time Zone, UTC and the local Lake County FIPS Code. Each Port Barrington Illinois zip code has a center Longitude / Latitude point (the Port Barrington center is -88.135498046875 / 42.194301605225). For your convenience we have also indicated if that zip code in Port Barrington observes Daylight Savings time.