City of Ann ArborTo distinguish property within the legal City limits of the City of Ann Arbor from that of the surrounding and nested townships. Polygon defining the boundary of The City of Ann Arbor. Updated as land is annexed.city-boundaryengAnn Arbor Data CatalogPublicGovernancePlanningCity BoundaryDatasetsMichigan--Ann ArborMichiganLast Modified: 2026-05-10