ZIP code 49306: Plainfield, MI
ZIP code 49306 is in Kent County, Michigan, outside any city or Census-designated place. It is in Michigan's 3rd congressional district. Its state senate districts are State Senate District 30 (79%) and State Senate District 33 (21%); its state house district is State House District 90.
See it on the mapAll of Michigan
City and county
Outside any city or Census-designated place.
| County | Share of ZIP residents |
|---|---|
| Kent County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Plainfield charter township | 79% |
| Cannon township | 21% |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| Michigan's 3rd congressional district (MI-03) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (MI-03) | Hillary J. Scholten (D) | 202-225-3831 | 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 30) | Mark Huizenga (R) | 79% | |
| State Senator (State Senate District 33) | Rick Outman (R) | 21% | |
| State Representative (State House District 90) | Bryan Posthumus (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
- Kent County website: https://www.accesskent.com/
- Kent County laws: search for the Kent County, Michigan code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 30 | 79% |
| State Senate District 33 | 21% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 90 | 100% |
Voting precincts
7 voting precincts overlap ZIP 49306. 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:49306")
ZIP 49306 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.