Below is a list of Ashton MD zip codes. For your research we have also included Ashton Area Code, Time Zone, UTC and the local Montgomery County FIPS Code. Each Ashton Maryland zip code has a center Longitude / Latitude point (the Ashton center is -77.012298583984 / 39.149299621582). For your convenience we have also indicated if that zip code in Ashton observes Daylight Savings time.