Grand Coulee is located in Washington. Grand Coulee, Washington has a population of 1,121. Grand Coulee is less family-centric than the surrounding county with 21.2% of the households containing married families with children. The county average for households married with children is 31.84%.
The median household income in Grand Coulee, Washington is $40,893. The median household income for the surrounding county is $63,566 compared to the national median of $69,021. The median age of people living in Grand Coulee is 50.7 years.
The average high temperature in July is 87 degrees, with an average low temperature in January of 21.7 degrees. The average rainfall is approximately 11.3 inches per year, with 19.4 inches of snow per year.