Below is a list of Gates Mills OH zip codes. For your research we have also included Gates Mills Area Code, Time Zone, UTC and the local Cuyahoga County FIPS Code. Each Gates Mills Ohio zip code has a center Longitude / Latitude point (the Gates Mills center is -81.408996582031 / 41.529899597168). For your convenience we have also indicated if that zip code in Gates Mills observes Daylight Savings time.