 orchard hills is a census-designated place (cdp) in armstrong county, pennsylvania, united states. the population was 1,952 at the 2010 census. ==geography== orchard hills is located at  (40.585377, -79.546323). according to the united states census bureau, the cdp has a total area of , of which,  of it is land and  of it (0.51%) is water. ==demographics== as of the census of 2000, there were 2,152 people, 837 households, and 621 families residing in the cdp. the population density was 549.0 people per square mile (212.0/kmÂ²). there were 901 housing units at an average density of 229.9/sq&nbsp;mi (88.7/kmÂ²). the racial mak
Census-designated_places_in_Armstrong_County,_Pennsylvania Census-designated_places_in_Pennsylvania Pittsburgh_metropolitan_area