Elk Plain is a city located in Washington. Elk Plain has a 2020 population of 15,167. Elk Plain is currently declining at a rate of 0.00% annually and its population has increased by 6.77% since the most recent census, which recorded a population of 14,205 in 2010. Elk Plain reached it's highest population of 15,167 in 2019.
The average household income in Elk Plain is $87,905 with a poverty rate of 14.52%. The median rental costs in recent years comes to $1,360 per month, and the median house value is $228,700. The median age in Elk Plain is 37.5 years, 38.3 years for males, and 36.7 years for females. For every 100 females there are 99.4 males.