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is a census-designated place (CDP) in South Middleton Township, Cumberland County, Pennsylvania, United States, and is part of the Harrisburg metropolitan area. The population was 2,769 at the 2000 census.
According to the United States Census Bureau, the CDP has a total area of 2.5 square miles (6.5 km²), of which, 2.5 square miles (6.5 km²) of it is land and 0.40% is water.
Boiling Springs gets its name from the natural artesian well springs located in and around the town, the most prominent of which is known as "the bubble," a name the Boiling Springs High School has taken on as its mascot. Another story of the name comes from how the lake in the center of the town steams (as if boiling) in the winter, as the water in the lake stays at a constant 52 degrees Fahrenheit (11 degrees Celsius) year-round.
The is situated near the halfway point of the Appalachian Trail, and a regional office of the Appalachian Trail Conservancy is located in the center of the town.
Boiling Springs was settled prior to 1737. An iron forge in the center of the town produced cannon for the Continental Army during the Revolutionary War. The village also played a prominent role in the Underground Railroad prior to the Civil War.