ZIP code 15055 is officially located in the state of Pennsylvania, primarily serving the city of Lawrence. It falls under the administrative jurisdiction of Washington County. When planning mail delivery, logistics routing, or demographic research, 15055 operates within the Eastern Time (ET) timezone and supports the 672 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 15055 ZIP Code Tabulation Area is approximately 22,372. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $75,055.