ZIP code 18915 is officially located in the state of Pennsylvania, primarily serving the city of Colmar. It falls under the administrative jurisdiction of Montgomery County. When planning mail delivery, logistics routing, or demographic research, 18915 operates within the Eastern Time (ET) timezone and supports the 746 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 18915 ZIP Code Tabulation Area is approximately 10,546. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $95,915.