Boundary Atlas

ZIP code 52035: Colesburg, IA

ZIP code 52035 is in Colesburg (42% of residents) and Osterdock (3.6%), in Delaware County (61%) and Clayton County (39%), Iowa. 54% of its residents live outside city limits. It is in Iowa's 2nd congressional district. Its state senate districts are State Senate District 34 (61%) and State Senate District 32 (39%); its state house districts are State House District 67 (61%) and State House District 64 (39%).

915residents (2020 Census)
50.0 sq miland area
2cities and towns
1congressional district
5voting precincts

See it on the mapAll of Iowa

City and county

City or townShare of ZIP residents
Colesburg42%
Osterdock3.6%

CountyShare of ZIP residents
Delaware County61%
Clayton County39%

Town or county subdivisionShare of ZIP residents
Colony township57%
Mallory township29%
Millville township10%
Elk township3.9%

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)61%
State Senator (State Senate District 32)Mike Klimesh (R)39%
State Representative (State House District 67)Craig Johnson (R)61%
State Representative (State House District 64)Jason Gearhart (R)39%

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 3461%
State Senate District 3239%

State house districtShare of ZIP residents
State House District 6761%
State House District 6439%

Voting precincts

5 voting precincts overlap ZIP 52035. Map them, with each precinct's share of the ZIP's residents.

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ZIP 52035 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.