Boundary Atlas

ZIP code 52033: Cascade, IA

ZIP code 52033 is in Cascade (69% of residents), in Dubuque County (71%) and Jones County (29%), Iowa. 31% of its residents live outside city limits. It is in Iowa's 2nd congressional district (71%) and Iowa's 1st congressional district (29%). Its state senate districts are State Senate District 34 (64%) and State Senate District 33 (36%); its state house districts are State House District 67 (64%), State House District 66 (29%) and State House District 65 (6.7%).

3,478residents (2020 Census)
98.4 sq miland area
1cities and towns
2congressional districts
4voting precincts

See it on the mapAll of Iowa

City and county

City or townShare of ZIP residents
Cascade69%

CountyShare of ZIP residents
Dubuque County71%
Jones County29%

Town or county subdivisionShare of ZIP residents
Whitewater township40%
Cascade township31%
Richland township18%
Washington township11%
Clay township0.7%

Congressional districts

Congressional districtShare of ZIP residents
Iowa's 2nd congressional district (IA-02)71%
Iowa's 1st congressional district (IA-01)29%

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)202-225-291171%
U.S. Representative (IA-01)Mariannette Miller-Meeks (R)202-225-657629%
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)64%
State Senator (State Senate District 33)Carrie Koelker (R)36%
State Representative (State House District 67)Craig Johnson (R)64%
State Representative (State House District 66)Steve Bradley (R)29%
State Representative (State House District 65)Shannon Lundgren (R)6.7%

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 3464%
State Senate District 3336%

State house districtShare of ZIP residents
State House District 6764%
State House District 6629%
State House District 656.7%

Voting precincts

4 voting precincts overlap ZIP 52033. Map them, with each precinct's share of the ZIP's residents.

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ZIP 52033 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.