Coulee City is a city located in Washington. With a 2020 population of 564, it is the 231st largest city in Washington and the 12801st largest city in the United States. Coulee City is currently declining at a rate of 0.00% annually and its population has increased by 0.36% since the most recent census, which recorded a population of 562 in 2010. Coulee City reached it's highest population of 569 in 2012. Spanning over 1 miles, Coulee City has a population density of 610 people per square mile.
The average household income in Coulee City is $51,326 with a poverty rate of 11.42%. The median rental costs in recent years comes to $443 per month, and the median house value is $129,600. The median age in Coulee City is 38.5 years, 36.8 years for males, and 49.5 years for females. For every 100 females there are 140.5 males.