Cass County, Michigan Genealogy Records

Selected record inventories for Cass County, their listed years, and where to ask for access.

Selected inventory review: 2026-11-02. Selected catalog metadata extracted from the linked sources. This is not an examination of original records, a complete county holdings audit, or certification of current access. Historical sources are identified in the access note. Archives of Michigan county guide

Formed
1829
County seat
Cassopolis
Allegan CountyBarry CountyBerrien CountyBranch CountyCalhoun CountyKalamazoo CountySt. Joseph CountyVan Buren CountyCass CountyBerrienBranchSt. JosephVan BurenCass
Cass CountyToday's boundaries · U.S. Census Bureau

Listed record inventories

Selected holdings and indexes for Cass County, checked against the repository descriptions linked below. Date spans may contain gaps; an index is not a complete set of original records.

Poor Home / Relief Records

See the repository's descriptions and search options

Repository access note: Selected holdings described by the Archives of Michigan. Preserve the record-group (RG) reference when requesting records. Some collections are held at partner repositories; consult the guide before traveling. Asterisks and other qualifiers refer to access or location notes in that guide. Some records have privacy restrictions or require proof of death. A date span may contain gaps and does not establish that images are online.

Sources: the catalogs and repository descriptions linked on the entries above. Selected inventories do not establish complete coverage of every record type or online access to original documents. Read the repository access note for source dates and limitations.

Where to find the records

Offices change their hours and access rules; call before you visit.

Boundaries and parent counties

Formed from: Land not yet in any county

Non-County Area 3Non-County Area 1CassCassNon-County Area 1
Cass as created in 1829Where its land was the day beforeToday's boundaryBoundaries: Newberry Library, Atlas of Historical County Boundaries

Records stay with the county that created them. If your ancestor lived here before 1829, search the parent county. The Atlas of Historical County Boundaries shows each boundary change.

Research tip

Michigan began registering births and deaths in 1867, much earlier than most states, with county clerks keeping the registers and sending copies to the state. Ask the county clerk for the early registers.