ZIP code 49402: Branch, MI
ZIP code 49402 is in Mason County (66%), Lake County (30%) and Oceana County (4.1%), Michigan, outside any city or Census-designated place. It is in Michigan's 2nd congressional district. Its state senate districts are State Senate District 32 (70%) and State Senate District 33 (30%); its state house district is State House District 101.
See it on the mapAll of Michigan
City and county
Outside any city or Census-designated place.
| County | Share of ZIP residents |
|---|---|
| Mason County | 66% |
| Lake County | 30% |
| Oceana County | 4.1% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Branch township | 36% |
| Logan township | 20% |
| Sweetwater township | 14% |
| Sheridan township | 9.3% |
| Sauble township | 8.5% |
| Lake township | 7.4% |
| Colfax township | 4.1% |
| Webber township | 0.2% |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| Michigan's 2nd congressional district (MI-02) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (MI-02) | John R. Moolenaar (R) | 202-225-3561 | 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 32) | Jon Bumstead (R) | 70% | |
| State Senator (State Senate District 33) | Rick Outman (R) | 30% | |
| State Representative (State House District 101) | Joseph Fox (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
- Mason County website: https://masoncounty.net
- Mason County laws: search for the Mason County, Michigan code of ordinances
- Lake County website: http://www.lakecounty-michigan.com/
- Lake County laws: search for the Lake County, Michigan code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 32 | 70% |
| State Senate District 33 | 30% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 101 | 100% |
Voting precincts
8 voting precincts overlap ZIP 49402. 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:49402")
ZIP 49402 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.