ZIP code 01226 is officially located in the state of Massachusetts, primarily serving the city of Dalton. It falls under the administrative jurisdiction of Berkshire County. When planning mail delivery, logistics routing, or demographic research, 01226 operates within the Eastern Time (ET) timezone and supports the 756 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 01226 ZIP Code Tabulation Area is approximately 11,256. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $82,226.