Green Tree is a borough located in Allegheny County, Pennsylvania. Green Tree has a 2026 population of 4,751. Green Tree is currently declining at a rate of -0.52% annually and its population has decreased by -3.63% since the most recent census, which recorded a population of 4,930 in 2020.
The median household income in Green Tree is $92,422 with a poverty rate of 6.37%. The median age in Green Tree is 42.8 years: 35 years for males, and 49.5 years for females. For every 100 females there are 89.6 males.