ZIP code 53227: West Allis, WI
ZIP code 53227 is in West Allis (83% of residents) and Milwaukee (16%), in Milwaukee County (100%) and Waukesha County (0.2%), Wisconsin. It is in Wisconsin's 5th congressional district (57%) and Wisconsin's 4th congressional district (43%). Its state senate districts are State Senate District 5 (83%), State Senate District 21 (17%) and State Senate District 28 (0.2%); its state house districts are Assembly District 14 (83%), Assembly District 61 (17%) and Assembly District 83 (0.2%).
See it on the mapAll of Wisconsin
City and county
| City or town | Share of ZIP residents |
|---|---|
| West Allis | 83% |
| Milwaukee | 16% |
| Greenfield | 0.9% |
| New Berlin | 0.2% |
| County | Share of ZIP residents |
|---|---|
| Milwaukee County | 100% |
| Waukesha County | 0.2% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| West Allis city | 83% |
| Milwaukee city | 16% |
| Greenfield city | 0.9% |
| New Berlin city | 0.2% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Wisconsin's 5th congressional district (WI-05) | 57% |
| Wisconsin's 4th congressional district (WI-04) | 43% |
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-05) | Scott Fitzgerald (R) | 202-225-5101 | 57% |
| U.S. Representative (WI-04) | Gwen Moore (D) | 202-225-4572 | 43% |
| 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 5) | Rob Hutton (R) | 83% | |
| State Senator (State Senate District 21) | Van Wanggaard (R) | 17% | |
| State Senator (State Senate District 28) | Julian Bradley (R) | 0.2% | |
| Assembly Member (Assembly District 14) | Angelito Tenorio (Democratic) | 83% | |
| Assembly Member (Assembly District 61) | Bob Donovan (R) | 17% | |
| Assembly Member (Assembly District 83) | Dave Maxey (R) | 0.2% |
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
- West Allis laws: search for the West Allis, Wisconsin code of ordinances
- Milwaukee website: https://city.milwaukee.gov/
- Milwaukee laws: search for the Milwaukee, Wisconsin code of ordinances
- Milwaukee County website: http://www.county.milwaukee.gov
- Milwaukee County laws: search for the Milwaukee County, Wisconsin code of ordinances
- Waukesha County website: http://www.waukeshacounty.gov
- Waukesha County laws: search for the Waukesha County, Wisconsin code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 5 | 83% |
| State Senate District 21 | 17% |
| State Senate District 28 | 0.2% |
| State house district | Share of ZIP residents |
|---|---|
| Assembly District 14 | 83% |
| Assembly District 61 | 17% |
| Assembly District 83 | 0.2% |
Voting precincts
16 voting precincts overlap ZIP 53227. 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:53227")
ZIP 53227 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.