ZIP code 83402 is in Idaho Falls (84% of residents), in Bonneville County (99%), Jefferson County (1.1%) and Bingham County (0.1%), Idaho. 16% of its residents live outside city limits. It is in Idaho's 2nd congressional district. Its state senate districts are State Senate District 33 (78%), State Senate District 32 (21%), State Senate District 31 (1.1%) and State Senate District 30 (0.1%); its state house districts are State House District 33 (78%), State House District 32 (21%), State House District 31 (1.1%) and State House District 30 (0.1%).
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).
17 voting precincts overlap ZIP 83402.
Map them, with each precinct's share of the ZIP's residents.
Get this in your AI agent
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:83402")
ZIP 83402 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.