Below is a list of Sunnyvale TX zip codes. For your research we have also included Sunnyvale Area Code, Time Zone, UTC and the local Dallas County FIPS Code. Each Sunnyvale Texas zip code has a center Longitude / Latitude point (the Sunnyvale center is -96.56120300293 / 32.796298980713). For your convenience we have also indicated if that zip code in Sunnyvale observes Daylight Savings time.