Adah is a community in German Township, Fayette County, Pennsylvania. It is an unincorporated area that falls within the Pittsburgh Metro Area. The community was created to support a neighbouring coal mine, the Palmer Mine. This kind of settlement is called a patch town.
Professional occupation, sales and services are the other major economic activities here. The cost of living here is 17.10% lower than the country average.
This place gets about 40 inches of rain annually. The number of days with measurable precipitation is 125. Snowfall is about 25 inches annually.