ZIP code 48416 is in Brown City (27% of residents), in Sanilac County (64%), Lapeer County (32%) and St. Clair County (4.1%), Michigan. 73% of its residents live outside city limits. It is in Michigan's 9th congressional district. Its state senate districts are State Senate District 25 (68%) and State Senate District 26 (32%); its state house districts are State House District 98 (65%) and State House District 65 (35%).
Members serving now (119th Congress, until January 3, 2027). Source: Members of Congress: the @unitedstates project, congress-legislators (CC0).
State legislative districts
State senate district
Share of ZIP residents
State Senate District 25
68%
State Senate District 26
32%
State house district
Share of ZIP residents
State House District 98
65%
State House District 65
35%
Voting precincts
9 voting precincts overlap ZIP 48416.
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:48416")
ZIP 48416 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.