ZIP code 48131: Dundee, MI
ZIP code 48131 is in Dundee (66% of residents), in Monroe County, Michigan. 34% of its residents live outside city limits. It is in Michigan's 5th congressional district. Its state senate district is State Senate District 16; its state house districts are State House District 31 (99%) and State House District 30 (0.8%).
See it on the mapAll of Michigan
City and county
| City or town | Share of ZIP residents |
|---|---|
| Dundee | 66% |
| County | Share of ZIP residents |
|---|---|
| Monroe County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Dundee township | 94% |
| Raisinville township | 2.7% |
| Milan township | 2.2% |
| Summerfield township | 0.8% |
| London township | 0.2% |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| Michigan's 5th congressional district (MI-05) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (MI-05) | Tim Walberg (R) | 202-225-6276 | 100% |
| U.S. Senator | Elissa Slotkin (D) | 202-224-4822 | statewide |
| U.S. Senator | Gary C. Peters (D) | 202-224-6221 · contact form | statewide |
| State Senator (State Senate District 16) | Joe Bellino (R) | 100% | |
| State Representative (State House District 31) | Reggie Miller (Democratic) | 99% | |
| State Representative (State House District 30) | Will Bruck (R) | 0.8% |
Elected under MI's previous legislative map; the district's lines changed for 2026.
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
- Dundee laws: search for the Dundee, Michigan code of ordinances
- Monroe County website: http://www.co.monroe.mi.us
- Monroe County laws: search for the Monroe County, Michigan code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 16 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 31 | 99% |
| State House District 30 | 0.8% |
Voting precincts
7 voting precincts overlap ZIP 48131. 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:48131")
ZIP 48131 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.