ZIP code 01011 is in Chester (46% of residents), in Hampden County (87%) and Hampshire County (13%), Massachusetts. 54% of its residents live outside city limits. It is in Massachusetts's 1st congressional district. Its state senate district is Berkshire-Hampden-Franklin-Hampshire District; its state house district is 3rd Hampden District.
Officials serving now (members of Congress until January 3, 2027). Sources: State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).
2 voting precincts overlap ZIP 01011.
Map them, with each precinct's share of the ZIP's residents.
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related_geographies(id="us:zcta:01011")
ZIP 01011 here is the Census Bureau's ZIP Code Tabulation Area, which approximates the USPS ZIP Code;
PO-box-only ZIPs have none. Districts are the maps in force for the November 3, 2026 election.