ZIP code 21090 is in Linthicum (99% of residents), in Anne Arundel County, Maryland. It is in Maryland's 3rd congressional district. Its state senate districts are State Senate District 32 (77%) and State Senate District 12 (23%); its state house districts are State Legislative District 32 (77%) and State Legislative Subdistrict 12B (23%).
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).
7 voting precincts overlap ZIP 21090.
Map them, with each precinct's share of the ZIP's residents.
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related_geographies(id="us:zcta:21090")
ZIP 21090 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.