19157

19157 is a United States ZIP code in Philadelphia, Pennsylvania. It is assigned by the United States Postal Service (USPS) to a portion of the city of Philadelphia for mail delivery and routing. ZIP codes function as geographic units used by the postal service and for various data analyses, though their boundaries do not always align with city or neighborhood borders.

Geography: The 19157 ZIP code lies within Philadelphia County in the state of Pennsylvania. It covers a section of the city of Philadelphia; like other ZIPs, its exact boundaries are determined by USPS and may be adjusted over time.

History: The ZIP code system was introduced by the USPS in 1963. Since then, 19157 has served as the postal designation for its area, with occasional boundary changes reflecting changes in population, delivery routes, and municipal planning.

Demographics and uses: ZIP codes are commonly used for mail delivery, demographic research, marketing, and service planning. Population figures and other statistics for 19157 are provided by the U.S. Census Bureau through the American Community Survey and decennial censuses; however, data at the ZIP-code level are estimates and can be imprecise for small areas.

See also: ZIP code, List of ZIP codes in Pennsylvania, Philadelphia, United States Postal Service.