Washington is a city located in Missouri. With a 2020 population of 14,045, it is the 54th largest city in Missouri and the 2421st largest city in the United States. Washington is currently declining at a rate of -0.04% annually but its population has increased by 0.45% since the most recent census, which recorded a population of 13,982 in 2010. Washington reached it's highest population of 14,055 in 2018. Spanning over 10 miles, Washington has a population density of 1,487 people per square mile.
The average household income in Washington is $72,116 with a poverty rate of 7.39%. The median rental costs in recent years comes to $734 per month, and the median house value is $165,600. The median age in Washington is 42.2 years, 39.7 years for males, and 44 years for females. For every 100 females there are 93.6 males.