ZIP code 49201 is in Jackson (11% of residents) and Napoleon (1.6%), in Jackson County, Michigan. 87% of its residents live outside city limits. It is in Michigan's 5th congressional district. Its state senate district is State Senate District 14; its state house districts are State House District 46 (62%), State House District 47 (21%) and State House District 45 (17%).
36 voting precincts overlap ZIP 49201.
Map them, with each precinct's share of the ZIP's residents.
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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:49201")
ZIP 49201 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.