ZIP code 48464: Otter Lake, MI
ZIP code 48464 is in Otter Lake (21% of residents), in Lapeer County (82%), Tuscola County (11%) and Genesee County (7.6%), Michigan. 79% of its residents live outside city limits. It is in Michigan's 9th congressional district (92%) and Michigan's 8th congressional district (7.6%). Its state senate district is State Senate District 26; its state house district is State House District 67.
See it on the mapAll of Michigan
City and county
| City or town | Share of ZIP residents |
|---|---|
| Otter Lake | 21% |
| County | Share of ZIP residents |
|---|---|
| Lapeer County | 82% |
| Tuscola County | 11% |
| Genesee County | 7.6% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Marathon township | 82% |
| Watertown township | 11% |
| Forest township | 7.6% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Michigan's 9th congressional district (MI-09) | 92% |
| Michigan's 8th congressional district (MI-08) | 7.6% |
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 26 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 67 | 100% |
Voting precincts
3 voting precincts overlap ZIP 48464. 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:48464")
ZIP 48464 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.