ZIP code 20854 is in Potomac (74% of residents), Travilah (16%) and Rockville (8.9%), in Montgomery County, Maryland. It is in Maryland's 8th congressional district. Its state senate districts are State Senate District 15 (66%), State Senate District 16 (24%) and State Senate District 17 (9.3%); its state house districts are State Legislative District 15 (66%), State Legislative District 16 (24%) and State Legislative District 17 (9.3%).
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).
19 voting precincts overlap ZIP 20854.
Map them, with each precinct's share of the ZIP's residents.
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related_geographies(id="us:zcta:20854")
ZIP 20854 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.