Boundary Atlas

ZIP code 52078: Worthington, IA

ZIP code 52078 is in Worthington (45% of residents), in Dubuque County (77%) and Delaware County (23%), Iowa. 55% of its residents live outside city limits. It is in Iowa's 2nd congressional district. Its state senate districts are State Senate District 33 (64%) and State Senate District 34 (36%); its state house districts are State House District 65 (64%) and State House District 67 (36%).

847residents (2020 Census)
41.5 sq miland area
1cities and towns
1congressional district
4voting precincts

See it on the mapAll of Iowa

City and county

City or townShare of ZIP residents
Worthington45%

CountyShare of ZIP residents
Dubuque County77%
Delaware County23%

Town or county subdivisionShare of ZIP residents
Dodge township64%
North Fork township22%
Cascade township13%
South Fork township1.1%

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 33)Carrie Koelker (R)64%
State Senator (State Senate District 34)Dan Zumbach (R)36%
State Representative (State House District 65)Shannon Lundgren (R)64%
State Representative (State House District 67)Craig Johnson (R)36%

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 3364%
State Senate District 3436%

State house districtShare of ZIP residents
State House District 6564%
State House District 6736%

Voting precincts

4 voting precincts overlap ZIP 52078. Map them, with each precinct's share of the ZIP's residents.

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ZIP 52078 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.