Boundary Atlas

ZIP code 50625: Dumont, IA

ZIP code 50625 is in Dumont (66% of residents), in Butler County (95%) and Franklin County (4.7%), Iowa. 34% of its residents live outside city limits. It is in Iowa's 2nd congressional district (95%) and Iowa's 4th congressional district (4.7%). Its state senate districts are State Senate District 29 (95%) and State Senate District 28 (4.7%); its state house districts are State House District 57 (95%) and State House District 55 (4.7%).

964residents (2020 Census)
61.1 sq miland area
1cities and towns
2congressional districts
3voting precincts

See it on the mapAll of Iowa

City and county

City or townShare of ZIP residents
Dumont66%

CountyShare of ZIP residents
Butler County95%
Franklin County4.7%

Town or county subdivisionShare of ZIP residents
Pittsford township85%
Madison township10%
Ingham township3.6%
Geneva township1.0%
Bennezette townshipland only

Congressional districts

Congressional districtShare of ZIP residents
Iowa's 2nd congressional district (IA-02)95%
Iowa's 4th congressional district (IA-04)4.7%

This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (IA-02)Ashley Hinson (R)202-225-291195%
U.S. Representative (IA-04)Randy Feenstra (R)202-225-44264.7%
U.S. SenatorChuck Grassley (R)202-224-3744 · contact formstatewide
U.S. SenatorJoni Ernst (R)202-224-3254 · contact formstatewide
State Senator (State Senate District 29)Sandy Salmon (R)95%
State Senator (State Senate District 28)Dennis Guth (R)4.7%
State Representative (State House District 57)Pat Grassley (R)95%
State Representative (State House District 55)Shannon Latham (R)4.7%

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).

Local government

State legislative districts

State senate districtShare of ZIP residents
State Senate District 2995%
State Senate District 284.7%

State house districtShare of ZIP residents
State House District 5795%
State House District 554.7%

Voting precincts

3 voting precincts overlap ZIP 50625. 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:50625")

ZIP 50625 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.