Greene county is located in Western Pennsylvania, and is border by West Virginia to the south and west. Radon in Greene county in much higher than in other counties and is 3.1 above the EPA recommended radon action level. Over 51.2% of homes in Greene county have radon levels above 4.0 pCi/L. Radon testing is recommended if your home is in Greene County. Greene county has over 38 thousand people living within 17 thousand households. Greene county has 1 university, and 5 public schools within its area.