ZIP code 78542 is in Edinburg (35% of residents), Murillo (10%), Doolittle (4.8%), San Carlos (3.6%), César Chávez (1.9%), Muniz (1.9%) and La Blanca (1.1%), in Hidalgo County, Texas. 42% of its residents live outside city limits. It is in Texas's 15th congressional district. Its state senate districts are State Senate District 20 (65%) and State Senate District 27 (35%); its state house districts are State House District 40 (91%), State House District 39 (7.6%), State House District 35 (1.2%) and State House District 41 (0.1%).
Elected in 2024 under TX's previous congressional map; this district's lines changed for the 120th Congress (seated January 3, 2027).
Officials serving now (members of Congress until January 3, 2027). Sources: Mayors: Open States (public domain); State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).
23 voting precincts overlap ZIP 78542.
Map them, with each precinct's share of the ZIP's residents.
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ZIP 78542 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.