Below is a list of Johnsburg IL zip codes. For your research we have also included Johnsburg Area Code, Time Zone, UTC and the local Mchenry County FIPS Code. Each Johnsburg Illinois zip code has a center Longitude / Latitude point (the Johnsburg center is -88.289001464844 / 42.34220123291). For your convenience we have also indicated if that zip code in Johnsburg observes Daylight Savings time.