Below is a list of Clarksville MD zip codes. For your research we have also included Clarksville Area Code, Time Zone, UTC and the local Howard County FIPS Code. Each Clarksville Maryland zip code has a center Longitude / Latitude point (the Clarksville center is -76.942802429199 / 39.206699371338). For your convenience we have also indicated if that zip code in Clarksville observes Daylight Savings time.