ZIP code 21631 is officially located in the state of Maryland, primarily serving the city of East new market. It falls under the administrative jurisdiction of Dorchester County. When planning mail delivery, logistics routing, or demographic research, 21631 operates within the Eastern Time (ET) timezone and supports the 372 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 21631 ZIP Code Tabulation Area is approximately 38,172. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $67,631.