Boundary Atlas

ZIP code 50027: Barnes City, IA

ZIP code 50027 is in Barnes City (57% of residents), in Mahaska County (95%) and Poweshiek County (4.9%), Iowa. 43% of its residents live outside city limits. It is in Iowa's 1st congressional district (95%) and Iowa's 2nd congressional district (4.9%). Its state senate districts are State Senate District 44 (95%) and State Senate District 27 (4.9%); its state house districts are State House District 88 (95%) and State House District 53 (4.9%).

266residents (2020 Census)
27.7 sq miland area
1cities and towns
2congressional districts
2voting precincts

See it on the mapAll of Iowa

City and county

City or townShare of ZIP residents
Barnes City57%

CountyShare of ZIP residents
Mahaska County95%
Poweshiek County4.9%

Town or county subdivisionShare of ZIP residents
Pleasant Grove township93%
Jackson township4.9%
Union township1.9%

Congressional districts

Congressional districtShare of ZIP residents
Iowa's 1st congressional district (IA-01)95%
Iowa's 2nd congressional district (IA-02)4.9%

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-01)Mariannette Miller-Meeks (R)202-225-657695%
U.S. Representative (IA-02)Ashley Hinson (R)202-225-29114.9%
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 44)Adrian Dickey (R)95%
State Senator (State Senate District 27)Annette Sweeney (R)4.9%
State Representative (State House District 88)Helena Hayes (R)95%
State Representative (State House District 53)Dean Fisher (R)4.9%

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 4495%
State Senate District 274.9%

State house districtShare of ZIP residents
State House District 8895%
State House District 534.9%

Voting precincts

2 voting precincts overlap ZIP 50027. 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:50027")

ZIP 50027 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.