ZIP code 49401 is officially located in the state of Michigan, primarily serving the city of Allendale. It falls under the administrative jurisdiction of Ottawa County. When planning mail delivery, logistics routing, or demographic research, 49401 operates within the Central Time (CT) timezone and supports the 558 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 49401 ZIP Code Tabulation Area is approximately 20,158. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $57,401.