community in Philadelphia was in the area bounded by Front Street, 18th Street, Oregon Avenue and Washington Avenue in South Philadelphia. As of 2011 most Mexicans in South Philadelphia originate from the state of Puebla. African Americans African Americans have lived in South Philadelphia since the early 19th century at the very least, though the city of Philadelphia proper was home to a significant population of freed and fugitive slaves since at least the 18th century. The majority of the current African American population in South Philadelphia, however, is descended from Southern migrants that moved into the city in high numbers during the first Great Migration in the early 20th century. South Street was originally considered the cultural and commercial center of this community, though the community became increasingly concentrated to western areas below South Street, including Point Breeze, Southwest Center City, Schuylkill and Grays Ferry. Point Breeze and South Street particularly served as Philadelphia's "Harlem" during the first half of the 20th century. The first police station and fire station staffed by African Americans were located on South Street. Famous South Philadelphians include opera contralto Marian Anderson and musicians Kenny Gamble and Chubby Checker. The Odunde Festival, arguably the largest street festival in Philadelphia, is an African-American celebration that is held annually in the South Street area. As of 2013, those that identified as "Black alone" or in combination with another ethnicity totaled 45,482 persons living in the zip codes 19145, 19146, 19147 and 19148. The African American population in South Philadelphia has historically constituted between 25% and 30% of South Philadelphia's population - 27% "Black alone" and in combination with another ethnicity as of a 2013 population estimate. Transportation SEPTA's Broad Street Line subway services South Philadelphia and provides quick access to Center City and North Philadelphia. A number of SEPTA bus routes also serve South Philadelphia, ferrying commuters to and from Center City and the surrounding neighborhoods and suburbs. I-95 runs north and south through South Philadelphia and, in this area, provides commuters with access to Philadelphia International Airport, I-76, the South Philadelphia Sports Complex and the Walt Whitman Bridge. The Girard Point Bridge section of I-95 crosses over the mouth of the Schuylkill River, where it merges with the Delaware River. I-76 becomes the Schuylkill Expressway at Passyunk Avenue in South Philadelphia and allows access between this section of the city and University City, Center City,