Key Center is a city located in Washington. Key Center has a 2020 population of 3,806. Key Center is currently declining at a rate of 0.00% annually and its population has increased by 3.09% since the most recent census, which recorded a population of 3,692 in 2010. Key Center reached it's highest population of 4,270 in 2013.
The average household income in Key Center is $103,020 with a poverty rate of 6.02%. The median rental costs in recent years comes to $1,168 per month, and the median house value is $318,800. The median age in Key Center is 44.8 years, 44.2 years for males, and 47.1 years for females. For every 100 females there are 113.3 males.