Sumas is a city located in Washington. With a 2020 population of 1,643, it is the 180th largest city in Washington and the 8376th largest city in the United States. Sumas is currently growing at a rate of 4.45% annually and its population has increased by 25.71% since the most recent census, which recorded a population of 1,307 in 2010. Spanning over 1 miles, Sumas has a population density of 1,118 people per square mile.
The average household income in Sumas is $64,337 with a poverty rate of 10.45%. The median rental costs in recent years comes to $854 per month, and the median house value is $217,900. The median age in Sumas is 31.5 years, 28.3 years for males, and 36.8 years for females. For every 100 females there are 112.2 males.