ZIP code 50109 is in Granger (50% of residents), in Polk County (51%) and Dallas County (49%), Iowa. 50% of its residents live outside city limits. It is in Iowa's 3rd congressional district. Its state senate districts are State Senate District 23 (100%) and State Senate District 22 (<0.1%); its state house districts are State House District 45 (51%), State House District 46 (49%) and State House District 43 (<0.1%).
Members serving now (119th Congress, until January 3, 2027). Source: Members of Congress: the @unitedstates project, congress-legislators (CC0).
State legislative districts
State senate district
Share of ZIP residents
State Senate District 23
100%
State Senate District 22
<0.1%
State house district
Share of ZIP residents
State House District 45
51%
State House District 46
49%
State House District 43
<0.1%
Voting precincts
4 voting precincts overlap ZIP 50109.
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://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:zcta:50109")
ZIP 50109 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.