ZIP code 49403: Chester, MI
ZIP code 49403 is in Ottawa County (91%), Muskegon County (5.6%) and Kent County (3.3%), Michigan, outside any city or Census-designated place. It is in Michigan's 2nd congressional district (56%) and Michigan's 3rd congressional district (44%). Its state senate districts are State Senate District 33 (61%) and State Senate District 30 (39%); its state house districts are State House District 89 (97%) and State House District 90 (3.3%).
See it on the mapAll of Michigan
City and county
Outside any city or Census-designated place.
| County | Share of ZIP residents |
|---|---|
| Ottawa County | 91% |
| Muskegon County | 5.6% |
| Kent County | 3.3% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Chester township | 55% |
| Wright township | 35% |
| Ravenna township | 5.6% |
| Alpine township | 2.6% |
| Polkton charter township | 1.3% |
| Sparta township | 0.6% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Michigan's 2nd congressional district (MI-02) | 56% |
| Michigan's 3rd congressional district (MI-03) | 44% |
This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 33 | 61% |
| State Senate District 30 | 39% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 89 | 97% |
| State House District 90 | 3.3% |
Voting precincts
7 voting precincts overlap ZIP 49403. 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:49403")
ZIP 49403 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.