ZIP code 49266: Jefferson, MI
ZIP code 49266 is in Hillsdale County, Michigan, outside any city or Census-designated place. It is in Michigan's 5th congressional district. Its state senate district is State Senate District 16; its state house district is State House District 35.
See it on the mapAll of Michigan
City and county
Outside any city or Census-designated place.
| County | Share of ZIP residents |
|---|---|
| Hillsdale County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Jefferson township | 76% |
| Ransom township | 11% |
| Adams township | 9.4% |
| Cambria township | 3.2% |
| Hillsdale township | 0.6% |
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 35) | Jennifer Wortz (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
- Hillsdale County website: https://www.co.hillsdale.mi.us
- Hillsdale County laws: search for the Hillsdale 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 35 | 100% |
Voting precincts
5 voting precincts overlap ZIP 49266. 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:49266")
ZIP 49266 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.