Southeast Michigan Council of Governments (SEMCOG)Michigan counties. Extracted from statewide coverage of MGFv17. Modified to in Southeast Michigan area to follow shoreline as adopted by SEMCOG.ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/aa922747f3964fd0bba38d78de3ebc63_8engSEMCOG Open DataPublicCounty Boundaries [Michigan]Web servicesMichiganLast Modified: 2025-11-01