North Philadelphia, nicknamed North Philly, is a section of Philadelphia, Pennsylvania. It is immediately north of Center City. Though the full extent of the region is somewhat vague, "North Philadelphia" is regarded as everything north of either Vine Street or Spring Garden Street, between Northwest Philadelphia and Northeast Philadelphia. It is bordered to the north by Olney Ave along Broad Street, Spring Garden Street to the south, 35th Street to the west and Adams Avenue to the east. The Philadelphia Police Department patrols five districts located within North Philadelphia: the 22nd, 25th, 26th, 35th and 39th districts. There are thirteen ZIP codes for North Philadelphia: 19120, 19121, 19122, 19123, 19125, 19126, 19130, 19132, 19133, 19134, 19137, 19140 and 19141.

Philadelphia, commonly referred to as Philly, is the most populous city in the U.S. state of Pennsylvania. Philadelphia is the nation's sixth-most populous city, with a population of 1,603,797 in the 2020 census and is the urban core of the larger Delaware Valley, the nation's seventh-largest and one of the world's largest metropolitan regions consisting of 6.245 million residents in the metropolitan statistical area and 7.366 million residents in its combined statistical area. Philadelphia is known for its extensive contributions to United States history, especially the American Revolution, and served as the nation's capital until 1800. It maintains contemporary influence in business and industry, culture, sports, and music.