Washington township is located in Washington County, Pennsylvania. Washington township has a 2026 population of 1,762. Washington township is currently growing at a rate of 0.8% annually but its population has decreased by -0.28% since the most recent census, which recorded a population of 1,767 in 2020.
The median household income in Washington township is $76,538 with a poverty rate of 26.49%. The median age in Washington township is 35.9 years: 35.4 years for males, and 36.6 years for females. For every 100 females there are 100.0 males.