Boundary Atlas

Michigan: cities, counties, ZIP codes and districts

Michigan has 13 congressional districts, 38 state senate districts and 110 state house districts under the maps in force for November 3, 2026, plus 3,895 voting precincts, 83 counties, 745 cities, towns and Census-designated places, and 992 ZIP codes.

Cities and towns

Largest first. Each page lists the city's county, districts and ZIP codes.

Congressional districts (2026)

DistrictShort2020 population
Michigan's 1st congressional districtMI-01775,375
Michigan's 2nd congressional districtMI-02774,997
Michigan's 3rd congressional districtMI-03775,414
Michigan's 4th congressional districtMI-04774,600
Michigan's 5th congressional districtMI-05774,544
Michigan's 6th congressional districtMI-06775,273
Michigan's 7th congressional districtMI-07775,238
Michigan's 8th congressional districtMI-08775,229
Michigan's 9th congressional districtMI-09774,962
Michigan's 10th congressional districtMI-10775,218
Michigan's 11th congressional districtMI-11775,568
Michigan's 12th congressional districtMI-12775,247
Michigan's 13th congressional districtMI-13775,666

ZIP codes in Michigan

Each page lists the ZIP's congressional and legislative districts, with population shares where it's split.

Get this in your AI agent

Your agent can list, look up and map every district and precinct in Michigan. Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

list_geographies(country="US", level="congressional_district", region="MI")