Sumas is located in Whatcom County. The region is located on the body of water Sumas River. About 1,583 people live here (as of 2020). Between 2010 and 2020, the population grew from 1,307 to 1,583. The region is at 13 meters above sea level. The area covers about 3.8 square kilometers. There are about 153 streets in Sumas. The postal codes are 98295. The dialing code is 360. Sumas is city in Whatcom County, Washington, United States. Among other things, Sumas has public Transport, hotels, restaurants and hairdressers. More information at
www.cityofsumas.com.