ZIP code 48827: Eaton Rapids, MI
ZIP code 48827 is in Eaton Rapids (33% of residents), in Eaton County (87%), Ingham County (12%) and Jackson County (0.5%), Michigan. 67% of its residents live outside city limits. It is in Michigan's 7th congressional district (99%) and Michigan's 5th congressional district (0.5%). Its state senate districts are State Senate District 21 (99%) and State Senate District 17 (0.5%); its state house districts are State House District 76 (87%), State House District 73 (12%) and State House District 45 (0.5%).
See it on the mapAll of Michigan
City and county
| City or town | Share of ZIP residents |
|---|---|
| Eaton Rapids | 33% |
| County | Share of ZIP residents |
|---|---|
| Eaton County | 87% |
| Ingham County | 12% |
| Jackson County | 0.5% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Eaton Rapids city | 33% |
| Eaton Rapids township | 25% |
| Hamlin township | 20% |
| Onondaga township | 7.0% |
| Aurelius township | 5.3% |
| Eaton township | 3.2% |
| Windsor charter township | 3.2% |
| Brookfield township | 3.1% |
| Springport township | 0.5% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Michigan's 7th congressional district (MI-07) | 99% |
| Michigan's 5th congressional district (MI-05) | 0.5% |
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 21 | 99% |
| State Senate District 17 | 0.5% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 76 | 87% |
| State House District 73 | 12% |
| State House District 45 | 0.5% |
Voting precincts
11 voting precincts overlap ZIP 48827. 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:48827")
ZIP 48827 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.