ZIP code 04490 is officially located in the state of Maine, primarily serving the city of Topsfield. It falls under the administrative jurisdiction of Washington County. When planning mail delivery, logistics routing, or demographic research, 04490 operates within the Eastern Time (ET) timezone and supports the 495 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 04490 ZIP Code Tabulation Area is approximately 40,395. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $70,490.