Below is a list of Barstow IL zip codes. For your research we have also included Barstow Area Code, Time Zone, UTC and the local Rock Island County FIPS Code. Each Barstow Illinois zip code has a center Longitude / Latitude point (the Barstow center is -90.357398986816 / 41.518199920654). For your convenience we have also indicated if that zip code in Barstow observes Daylight Savings time.