ZIP code 20754 is in Dunkirk (35% of residents), in Calvert County (88%) and Anne Arundel County (12%), Maryland. 65% of its residents live outside city limits. It is in Maryland's 5th congressional district. Its state senate districts are State Senate District 27 (88%) and State Senate District 30 (12%); its state house districts are State Legislative Subdistrict 27B (88%) and State Legislative Subdistrict 30B (12%).
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 20754.
Map them, with each precinct's share of the ZIP's residents.
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Your agent can get these cities, counties, districts and precincts with their shares, and their GeoJSON boundaries, from Boundary Atlas. Add https://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:zcta:20754")
ZIP 20754 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.