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History. Carlisle was founded in 1751 as a county seat of the newly-created Cumberland County. Both the town and the county were intended by the colonial General Assembly and the Penn family in Philadelphia to be the opening of the frontier west of the Susquehanna River. This meant a fiery and violent era of frontier drama for over ten years.
Carlisle is a borough in and the county seat of Cumberland County, Pennsylvania, United States. Carlisle is located within the Cumberland Valley, a highly productive agricultural region. As of the 2020 census, the borough population was 20,118; including suburbs in the neighboring townships, 37,695 live in the Carlisle urban cluster.
Destination Carlisle--Visit Downtown Carlisle, PA. Why Downtown Carlisle? Our downtown is the beating heart of the Carlisle area, and we're delighted to welcome you to discover what we already know.
