01005

01005 is a United States ZIP code assigned by the United States Postal Service (USPS). It designates a specific geographic delivery area in western Massachusetts and is used for mail routing and as a geographic reference in data systems.

Geography and boundaries: The 01005 ZIP code lies in the western region of Massachusetts and may span portions of one or more municipalities. USPS ZIP code boundaries are not always aligned with town borders and can change over time as population and mail volume shift. Precise coverage is defined by USPS resources such as the ZIP Code Almanac and official lookup tools.

Demographics and usage: ZIP code boundaries are commonly used in demographic analysis, marketing, and service planning, but population statistics are typically reported at the city or county level rather than by ZIP code alone. Residents and businesses within the 01005 area receive mail at addresses within the code, and the ZIP code may appear in insurance rates, service availability data, and geographic information systems.

History and context: ZIP codes were introduced by the USPS in 1963 to improve mail delivery efficiency; 01005 would have been established or updated as the system expanded its coverage in western Massachusetts. For current boundaries or to confirm whether a specific address falls within 01005, the USPS ZIP Code lookup or official ZIP Code Almanac should be consulted.