ZIP code 01921 is in Boxford (29% of residents), in Essex County, Massachusetts. 71% of its residents live outside city limits. It is in Massachusetts's 6th congressional district. Its state senate district is First Essex and Middlesex District; its state house districts are 14th Essex District (67%), 18th Essex District (33%) and 2nd Essex District (0.7%).
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).
4 voting precincts overlap ZIP 01921.
Map them, with each precinct's share of the ZIP's residents.
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related_geographies(id="us:zcta:01921")
ZIP 01921 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.