ZIP code 20817 is in Bethesda (61% of residents), Potomac (25%), North Bethesda (12%) and Cabin John (1.6%), in Montgomery County, Maryland. It is in Maryland's 8th congressional district. Its state senate districts are State Senate District 16 (92%) and State Senate District 15 (7.8%); its state house districts are State Legislative District 16 (92%) and State Legislative District 15 (7.8%).
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).
14 voting precincts overlap ZIP 20817.
Map them, with each precinct's share of the ZIP's residents.
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related_geographies(id="us:zcta:20817")
ZIP 20817 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.