ZIP code 21660 is in Ridgely (41% of residents), in Caroline County, Maryland. 59% of its residents live outside city limits. It is in Maryland's 1st congressional district. Its state senate districts are State Senate District 36 (94%) and State Senate District 37 (6.4%); its state house districts are State Legislative District 36 (94%) and State Legislative Subdistrict 37B (6.4%).
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).
3 voting precincts overlap ZIP 21660.
Map them, with each precinct's share of the ZIP's residents.
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related_geographies(id="us:zcta:21660")
ZIP 21660 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.