ZIP code 53012: Cedarburg, WI
ZIP code 53012 is in Cedarburg (64% of residents), in Ozaukee County (91%) and Washington County (8.9%), Wisconsin. 36% of its residents live outside city limits. It is in Wisconsin's 6th congressional district (91%) and Wisconsin's 5th congressional district (8.9%). Its state senate districts are State Senate District 8 (91%) and State Senate District 20 (8.9%); its state house districts are Assembly District 22 (91%) and Assembly District 58 (8.9%).
See it on the mapAll of Wisconsin
City and county
| City or town | Share of ZIP residents |
|---|---|
| Cedarburg | 64% |
| County | Share of ZIP residents |
|---|---|
| Ozaukee County | 91% |
| Washington County | 8.9% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Cedarburg city | 64% |
| Cedarburg town | 25% |
| Jackson town | 8.9% |
| Grafton town | 2.7% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Wisconsin's 6th congressional district (WI-06) | 91% |
| Wisconsin's 5th congressional district (WI-05) | 8.9% |
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
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (WI-06) | Glenn Grothman (R) | 202-225-2476 | 91% |
| U.S. Representative (WI-05) | Scott Fitzgerald (R) | 202-225-5101 | 8.9% |
| U.S. Senator | Ron Johnson (R) | 202-224-5323 · contact form | statewide |
| U.S. Senator | Tammy Baldwin (D) | 202-224-5653 · contact form | statewide |
| State Senator (State Senate District 8) | Jodi Habush Sinykin (Democratic) | 91% | |
| State Senator (State Senate District 20) | Dan Feyen (R) | 920-952-7001 | 8.9% |
| Assembly Member (Assembly District 22) | Paul Melotik (R) | 91% | |
| Assembly Member (Assembly District 58) | Rick Gundrum (R) | 8.9% |
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
- Cedarburg website: https://www.ci.cedarburg.wi.us/
- Cedarburg laws: search for the Cedarburg, Wisconsin code of ordinances
- Ozaukee County website: http://www.co.ozaukee.wi.us
- Ozaukee County laws: search for the Ozaukee County, Wisconsin code of ordinances
- Washington County laws: search for the Washington County, Wisconsin code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 8 | 91% |
| State Senate District 20 | 8.9% |
| State house district | Share of ZIP residents |
|---|---|
| Assembly District 22 | 91% |
| Assembly District 58 | 8.9% |
Voting precincts
23 voting precincts overlap ZIP 53012. 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:53012")
ZIP 53012 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.