Washington is a city located in Pennsylvania. With a 2020 population of 13,392, it is the 42nd largest city in Pennsylvania and the 2499th largest city in the United States. Washington is currently declining at a rate of -0.43% annually and its population has decreased by -1.98% since the most recent census, which recorded a population of 13,663 in 2010. Washington reached it's highest population of 26,280 in 1950. Spanning over 3 miles, Washington has a population density of 4,543 people per square mile.
The average household income in Washington is $50,652 with a poverty rate of 20.91%. The median rental costs in recent years comes to $694 per month, and the median house value is $99,100. The median age in Washington is 38 years, 36.6 years for males, and 39.7 years for females. For every 100 females there are 94.9 males.