ZIP code 49107: Buchanan, MI
ZIP code 49107 is in Buchanan (43% of residents), in Berrien County, Michigan. 57% of its residents live outside city limits. It is in Michigan's 5th congressional district. Its state senate district is State Senate District 17; its state house district is State House District 37.
See it on the mapAll of Michigan
City and county
| City or town | Share of ZIP residents |
|---|---|
| Buchanan | 43% |
| County | Share of ZIP residents |
|---|---|
| Berrien County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Buchanan city | 43% |
| Buchanan township | 33% |
| Bertrand township | 9.2% |
| Niles township | 7.7% |
| Weesaw township | 5.0% |
| Oronoko charter township | 2.1% |
| Baroda township | 0.5% |
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 17) | Jonathan Lindsey (R) | 100% | |
| State Representative (State House District 37) | Brad Paquette (R) | 100% |
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
- Buchanan website: https://www.cityofbuchanan.com/
- Buchanan laws: search for the Buchanan, Michigan code of ordinances
- Berrien County website: https://www.berriencounty.org
- Berrien County laws: search for the Berrien County, Michigan code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 17 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 37 | 100% |
Voting precincts
8 voting precincts overlap ZIP 49107. 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:49107")
ZIP 49107 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.