Greene township is located in Mercer County, Pennsylvania. Greene township has a 2026 population of 1,032. Greene township is currently declining at a rate of -0.1% annually and its population has decreased by -1.81% since the most recent census, which recorded a population of 1,051 in 2020.
The median household income in Greene township is $75,147 with a poverty rate of 20.6%. The median age in Greene township is 48.3 years: 48.6 years for males, and 48.1 years for females. For every 100 females there are 100.4 males.