Soap Lake is a city located in Washington. With a 2020 population of 1,615, it is the 180th largest city in Washington and the 8430th largest city in the United States. Soap Lake is currently growing at a rate of 0.37% annually and its population has increased by 6.67% since the most recent census, which recorded a population of 1,514 in 2010. Soap Lake reached it's highest population of 1,615 in 2021. Spanning over 2 miles, Soap Lake has a population density of 1,051 people per square mile.
The average household income in Soap Lake is $40,766 with a poverty rate of 22.79%. The median rental costs in recent years comes to $460 per month, and the median house value is $110,000. The median age in Soap Lake is 42.5 years, 55.2 years for males, and 32.5 years for females. For every 100 females there are 74.1 males.