 mount holly springs is a borough in cumberland county, pennsylvania, u.s. the population was 2,030 at the 2010 census. it is part of the harrisburg&ndash;carlisle metropolitan statistical area. ==geography== mount holly springs is located at  (40.116063, -77.186751). according to the united states census bureau, the borough has a total area of 1.6&nbsp;square miles (4.0&nbsp;kmÂ²), of which, 1.5&nbsp;square miles (3.9&nbsp;kmÂ²) of it is land and 0.1&nbsp;square miles (0.1&nbsp;kmÂ²) of it (3.21%) is water. the water comes from a creek that runs through the town known as mountain creek. it is a tributary of the [[susquehan
Boroughs_in_Cumberland_County,_Pennsylvania Boroughs_in_Pennsylvania Harrisburg_metropolitan_area Populated_places_established_in_1815