Fountain Hill is a borough in Lehigh County, Pennsylvania, United States. It is a suburb of Bethlehem, Pennsylvania in the Lehigh Valley region of the state. Fountain Hill is included in the Allentown-Bethlehem-Easton, PA-NJ Metropolitan Statistical Area, which is also included in the New York City-Newark, New Jersey, NY-NJ-CT-PA Combined Statistical Area.
The population of Fountain Hill was 4,597 at the 2010 census.
Fountain Hill is located at 40°36′6″N 75°23′47″W (40.601698, -75.396357).
According to the United States Census Bureau, the borough has a total area of 0.7 square miles (1.8 km2), of which, 0.7 square miles (1.8 km2) of it is land and 1.41% is water. The Borough is approximately 450 acres (1.8 km2), predominantly residential in character, with approximately 1,754 dwelling units. It uses the Bethlehem ZIP code of 18015. 
As of the census of 2010, there were 4,597 people living in the borough. The racial makeup of the borough was 81.4% White, 6.6% African American, 0.1% Native American, 0.8% Asian, 0.0% Pacific Islander, 7.7% from other races, and 3.4% from two or more races. Hispanic or Latino of any race were 22.5% of the population.