Grand Coulee is located in Washington. Grand Coulee, Washington has a population of 1,018. Grand Coulee is less family-centric than the surrounding county with 15% households with children. The county percentage for households with children is 35%.
The median household income in Grand Coulee, Washington is $43,942. The median household income for the surrounding county is $59,938 compared to the national median of $66,222. The median age of people living in Grand Coulee is 48.2 years.
The average high temperature in July is 87.01 degrees, with an average low temperature in January of 19.96 degrees. The annual precipitation is 10.52.