 burnham is a borough in mifflin county, pennsylvania, united states. the population was 2,054 at the 2010 census. ==geography== burnham is located at  (40.635137, -77.564678). according to the united states census bureau, the borough has a total area of , all land ==demographics== {{us census population |1920=2765 |1930=3089 |1940=2997 |1950=2954 |1960=2755 |1970=2607 |1980=2457 |1990=2197 |2000=2144 |2010=2054 |estimate=2048 |estyear=2012 |footnote=sources:{{cite web|title=census of population and ho
Boroughs_in_Mifflin_County,_Pennsylvania Boroughs_in_Pennsylvania Populated_places_established_in_1911