Coupeville is a city located in Washington. With a 2020 population of 2,000, it is the 167th largest city in Washington and the 7638th largest city in the United States. Coupeville is currently growing at a rate of 0.70% annually and its population has increased by 9.23% since the most recent census, which recorded a population of 1,831 in 2010. Coupeville reached it's highest population of 2,000 in 2021. Spanning over 2 miles, Coupeville has a population density of 1,575 people per square mile.
The average household income in Coupeville is $73,645 with a poverty rate of 13.14%. The median rental costs in recent years comes to $779 per month, and the median house value is $342,800. The median age in Coupeville is 63.8 years, 61.4 years for males, and 64.5 years for females. For every 100 females there are 88.7 males.