Sumas is located in Washington. Sumas, Washington has a population of 1,392. Sumas is more family-centric than the surrounding county with 49.13% of the households containing married families with children. The county average for households married with children is 31.2%.
The median household income in Sumas, Washington is $62,063. The median household income for the surrounding county is $70,011 compared to the national median of $69,021. The median age of people living in Sumas is 31.9 years.
The average high temperature in July is 73.7 degrees, with an average low temperature in January of 33.8 degrees. The average rainfall is approximately 40.2 inches per year, with 7.1 inches of snow per year.
