ZIP code 54002: Baldwin, WI
ZIP code 54002 is in Baldwin (64% of residents), in St. Croix County (99%) and Pierce County (1.2%), Wisconsin. 36% of its residents live outside city limits. It is in Wisconsin's 7th congressional district (99%) and Wisconsin's 3rd congressional district (1.2%). Its state senate district is State Senate District 10; its state house district is Assembly District 28.
See it on the mapAll of Wisconsin
City and county
| City or town | Share of ZIP residents |
|---|---|
| Baldwin | 64% |
| County | Share of ZIP residents |
|---|---|
| St. Croix County | 99% |
| Pierce County | 1.2% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Baldwin village | 64% |
| Eau Galle town | 9.1% |
| Baldwin town | 8.1% |
| Hammond town | 7.6% |
| Rush River town | 6.8% |
| Emerald town | 2.2% |
| Erin Prairie town | 1.4% |
| Gilman town | 0.8% |
| Martell town | 0.3% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Wisconsin's 7th congressional district (WI-07) | 99% |
| Wisconsin's 3rd congressional district (WI-03) | 1.2% |
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-07) | Thomas P. Tiffany (R) | 202-225-3365 | 99% |
| U.S. Representative (WI-03) | Derrick Van Orden (R) | 202-225-5506 | 1.2% |
| 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 10) | Rob Stafsholt (R) | 100% | |
| Assembly Member (Assembly District 28) | Rob Kreibich (R) | 100% |
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
- Baldwin website: http://www.villageofbaldwin.com/
- Baldwin laws: search for the Baldwin, Wisconsin code of ordinances
- St. Croix County website: https://www.sccwi.gov/
- St. Croix County laws: search for the St. Croix County, Wisconsin code of ordinances
- Pierce County website: https://www.co.pierce.wi.us/
- Pierce County laws: search for the Pierce County, Wisconsin code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 10 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| Assembly District 28 | 100% |
Voting precincts
15 voting precincts overlap ZIP 54002. 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:54002")
ZIP 54002 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.