Boundary Atlas

ZIP code 52079: Otter Creek, IA

ZIP code 52079 is in Zwingle (11% of residents), in Jackson County (55%) and Dubuque County (45%), Iowa. 89% of its residents live outside city limits. It is in Iowa's 1st congressional district (55%) and Iowa's 2nd congressional district (45%). Its state senate district is State Senate District 33; its state house districts are State House District 66 (55%) and State House District 65 (45%).

753residents (2020 Census)
59.3 sq miland area
1cities and towns
2congressional districts
3voting precincts

See it on the mapAll of Iowa

City and county

City or townShare of ZIP residents
Zwingle11%

CountyShare of ZIP residents
Jackson County55%
Dubuque County45%

Town or county subdivisionShare of ZIP residents
Otter Creek township49%
Washington township45%
Farmers Creek township5.6%

Congressional districts

Congressional districtShare of ZIP residents
Iowa's 1st congressional district (IA-01)55%
Iowa's 2nd congressional district (IA-02)45%

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.

State legislative districts

State senate districtShare of ZIP residents
State Senate District 33100%

State house districtShare of ZIP residents
State House District 6655%
State House District 6545%

Voting precincts

3 voting precincts overlap ZIP 52079. 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:52079")

ZIP 52079 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.