Doylestown is a borough and the county seat of Bucks County, Pennsylvania, United States. It is located approximately 35 miles north of Philadelphia and has a population of about 8,274. The city is known for its historic architecture and is home to many historic landmarks, including the Mercer Museum and Fonthill Castle. Doylestown also offers a vibrant downtown area with various shops, restaurants, and cultural attractions. It is a popular destination for tourists and residents alike.