Boundary Atlas

ZIP code 50839: Carbon, IA

ZIP code 50839 is in Carbon, in Adams County, Iowa. It is in Iowa's 3rd congressional district. Its state senate district is State Senate District 9; its state house district is State House District 17.

36residents (2020 Census)
0.5 sq miland area
1cities and towns
1congressional district
1voting precincts

See it on the mapAll of Iowa

City and county

City or townShare of ZIP residents
Carbon100%

CountyShare of ZIP residents
Adams County100%

Town or county subdivisionShare of ZIP residents
Douglas township100%

Congressional district

Congressional districtShare of ZIP residents
Iowa's 3rd congressional district (IA-03)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 9100%

State house districtShare of ZIP residents
State House District 17100%

Voting precincts

1 voting precinct overlap ZIP 50839. Map them, with each precinct's share of the ZIP's residents.

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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:50839")

ZIP 50839 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.