Boundary Atlas

ZIP code 50629: Fairbank, IA

ZIP code 50629 is in Fairbank (49% of residents), in Buchanan County (60%), Fayette County (24%), Bremer County (10%) and Black Hawk County (5.5%), Iowa. 51% of its residents live outside city limits. It is in Iowa's 2nd congressional district. Its state senate districts are State Senate District 34 (90%) and State Senate District 29 (10%); its state house districts are State House District 68 (90%) and State House District 58 (10%).

2,288residents (2020 Census)
75.3 sq miland area
1cities and towns
1congressional district
6voting precincts

See it on the mapAll of Iowa

City and county

City or townShare of ZIP residents
Fairbank49%

CountyShare of ZIP residents
Buchanan County60%
Fayette County24%
Bremer County10%
Black Hawk County5.5%

Town or county subdivisionShare of ZIP residents
Fairbank township60%
Oran township23%
Franklin township10%
Lester township5.5%
Fremont township1.1%
Perry township0.7%

Congressional district

Congressional districtShare of ZIP residents
Iowa's 2nd congressional district (IA-02)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (IA-02)Ashley Hinson (R)202-225-2911100%
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 34)Dan Zumbach (R)90%
State Senator (State Senate District 29)Sandy Salmon (R)10%
State Representative (State House District 68)Chad Ingels (R)90%
State Representative (State House District 58)Charley Thomson (R)10%

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 3490%
State Senate District 2910%

State house districtShare of ZIP residents
State House District 6890%
State House District 5810%

Voting precincts

6 voting precincts overlap ZIP 50629. 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:50629")

ZIP 50629 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.