Port Richmond is a neighborhood in the River Wards section of Philadelphia, Pennsylvania, United States. It is notable for its extremely large Polish immigrant and Polish American community, and it has been known as the Little Poland of Philadelphia. The neighborhood is also home to a large Irish American community and sizable German, Lithuanian…Port Richmond is a neighborhood in the River Wards section of Philadelphia, Pennsylvania, United States. It is notable for its extremely large Polish immigrant and Polish American community, and it has been known as the Little Poland of Philadelphia. The neighborhood is also home to a large Irish American community and sizable German, Lithuanian, Italian, and Puerto Rican communities, along with a historic Jewish community, as represented in the various churches and organizations. In more recent years, a sizable Albanian community has moved in. The Richmond Zip Code is 19134. A small portion of the neighborhood, north of Castor Avenue, falls into the 19137 ZIP code.