 loyalhanna is a census-designated place (cdp) in westmoreland county, pennsylvania, united states. the population was 3,415 at the 2000 census, at which time it was listed as mcchesneytown-loyalhanna, before just becoming the cdp of loyalhanna for the 2010 census. as of the 2010 census the population was 3,428 residents. ==geography== loyalhanna is located at  (40.314197, -79.361280). according to the united states census bureau, the cdp has a total area of , all of it land. ==demographics== as of the census of 2000, there were 3,415 people, 1,464 households, and 1,030 families residing in the cdp. the population density was 1,462.3 people per square mile (563.5/kmÂ²). there were 1,536 housing units at an average density of 657.7/sq&nbsp;mi (253.4/kmÂ²). the racial m
Census-designated_places_in_Pennsylvania Census-designated_places_in_Westmoreland_County,_Pennsylvania Pittsburgh_metropolitan_area