Iron County, Michigan Genealogy Records

Selected record inventories for Iron 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
1885
County seat
Crystal Falls
Alger CountyBaraga CountyDelta CountyDickinson CountyGogebic CountyHoughton CountyKeweenaw CountyOntonagon CountySchoolcraft CountyMarquette CountyMenominee CountyIron CountyAlgerBaragaDeltaGogebicHoughtonKeweenawOntonagonMarquetteMenomineeIron
Iron CountyParent counties (search here for earlier records)Today's boundaries · U.S. Census Bureau

Listed record inventories

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

Check the parent counties for earlier records: Marquette County, Menominee County

Later formed partly from Iron County: Dickinson County

DeltaOntonagonNon-County Area 10AlgerBaragaHoughtonSchoolcraftMarquetteMenomineeIronIronMarquetteMenomineeDeltaOntonagonAlgerBaragaHoughtonSchoolcraft
Iron as created in 1885Where 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 1885, 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.