Below is a list of South Dennis MA zip codes. For your research we have also included South Dennis Area Code, Time Zone, UTC and the local Barnstable County FIPS Code. Each South Dennis Massachusetts zip code has a center Longitude / Latitude point (the South Dennis center is -70.153999328613 / 41.705799102783). For your convenience we have also indicated if that zip code in South Dennis observes Daylight Savings time.