ZIP code 48739: Plainfield, MI
ZIP code 48739 is in Iosco County (78%) and Ogemaw County (22%), Michigan, outside any city or Census-designated place. It is in Michigan's 1st congressional district. Its state senate district is State Senate District 36; its state house district is State House District 99.
See it on the mapAll of Michigan
City and county
Outside any city or Census-designated place.
| County | Share of ZIP residents |
|---|---|
| Iosco County | 78% |
| Ogemaw County | 22% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Plainfield township | 76% |
| Hill township | 14% |
| Logan township | 6.7% |
| Reno township | 1.7% |
| Goodar township | 1.1% |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| Michigan's 1st congressional district (MI-01) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (MI-01) | Jack Bergman (R) | 202-225-4735 | 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 36) | Michele Hoitenga (R) | 100% | |
| State Representative (State House District 99) | Mike Hoadley (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
- Iosco County laws: search for the Iosco County, Michigan code of ordinances
- Ogemaw County laws: search for the Ogemaw County, Michigan code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 36 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 99 | 100% |
Voting precincts
6 voting precincts overlap ZIP 48739. 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:48739")
ZIP 48739 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.