ZIP code 49233: Somerset, MI
ZIP code 49233 is in Cement City (15% of residents), in Hillsdale County (59%), Lenawee County (27%) and Jackson County (14%), Michigan. 85% of its residents live outside city limits. It is in Michigan's 5th congressional district. Its state senate districts are State Senate District 16 (86%) and State Senate District 14 (14%); its state house districts are State House District 35 (59%), State House District 34 (27%), State House District 47 (7.1%) and State House District 45 (6.7%).
See it on the mapAll of Michigan
City and county
| City or town | Share of ZIP residents |
|---|---|
| Cement City | 15% |
| County | Share of ZIP residents |
|---|---|
| Hillsdale County | 59% |
| Lenawee County | 27% |
| Jackson County | 14% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Somerset township | 59% |
| Woodstock township | 27% |
| Columbia township | 7.1% |
| Liberty township | 6.7% |
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) | 86% | |
| State Senator (State Senate District 14) | Sue Shink (Democratic) | 14% | |
| State Representative (State House District 35) | Jennifer Wortz (R) | 59% | |
| State Representative (State House District 34) | Nancy Jenkins-Arno (R) | 27% | |
| State Representative (State House District 47) | Carrie Rheingans (Democratic) | 7.1% | |
| State Representative (State House District 45) | Sarah Lightner (R) | 6.7% |
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
- Cement City laws: search for the Cement City, Michigan code of ordinances
- Hillsdale County website: https://www.co.hillsdale.mi.us
- Hillsdale County laws: search for the Hillsdale County, Michigan code of ordinances
- Lenawee County website: https://www.lenawee.mi.us/
- Lenawee County laws: search for the Lenawee County, Michigan code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 16 | 86% |
| State Senate District 14 | 14% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 35 | 59% |
| State House District 34 | 27% |
| State House District 47 | 7.1% |
| State House District 45 | 6.7% |
Voting precincts
5 voting precincts overlap ZIP 49233. 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:49233")
ZIP 49233 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.