| Summerdale, Pennsylvania | |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | USA Pennsylvania#USA |
| Pushpin Label: | Summerdale |
| Pushpin Map Caption: | Location within the U.S. state of Pennsylvania |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Pennsylvania |
| Subdivision Type2: | County |
| Subdivision Name2: | Cumberland |
| Subdivision Type3: | Township |
| Subdivision Name3: | East Pennsboro |
| Unit Pref: | Imperial |
| Area Total Km2: | 0.3 |
| Area Land Km2: | 0.3 |
| Population As Of: | 2000 |
| Population Density Km2: | auto |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Coordinates: | 40.2936°N -76.9264°W |
| Postal Code Type: | ZIP codes |
| Postal Code: | 17093 |
| Area Code: | 717 |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1189024 |
Summerdale is an unincorporated community located in East Pennsboro Township, Cumberland County, Pennsylvania, United States. As of 2020, the community had an estimated population of 705.[1] Central Pennsylvania College and the Capital Area Intermediate Unit are located in Summerdale. It is part of the Harrisburg - Carlisle Metropolitan Statistical Area.
Summerdale is located at 40°18'41" North, 76°55'54" West,[2] on the west side of U.S. Route 11/15 and the south side of Interstate 81. These two highways interchange just north of Summerdale.
Summerdale was founded in 1909. As people from Harrisburg came over the river during the summers, a dance hall was erected to support their need to party, thus, starting the town of Summerdale. In 2009, Summerdale held a Centennial Celebration. There was a parade, games, and a year-long celebration dedicated to the small town of Summerdale.