Frederick County, Maryland Genealogy Records

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

Selected inventory review: 2026-11-02. Selected collection metadata checked against repository catalog descriptions. This is not a complete holdings audit, examination of original records, or certification of current access. See the access note for limitations. Repository catalog or holdings guide

Formed
1748
County seat
Frederick
Anne Arundel CountyBaltimore CountyCarroll CountyHoward CountyMontgomery CountyPrince George's CountyWashington CountyBaltimore CityFrederick CountyAnne ArundelBaltimoreCarrollHowardMontgomeryWashingtonFrederick
Frederick CountyToday's boundaries · U.S. Census Bureau

Listed record inventories

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

Deeds and land

Wills and estates

County government

Tax records

Court records

Marriages, births and deaths

See the repository's descriptions and search options

Repository access note: Selected Maryland State Archives catalog series. Separate paper, microfilm and electronic catalog records may describe overlapping material; the format and series identifier are retained in each title. Electronic does not guarantee unrestricted online images. Consult the individual series page for restrictions, location and missing volumes.

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: Prince Georges County (extinct)

Later formed partly from Frederick County: Carroll County, Montgomery County, Washington County

ST. MarysCalvertCharlesCecilKentTalbotQueen AnnesDorchesterAnne ArundelBaltimoreWorcesterSomersetPrince GeorgesNon-County Area 1FrederickFrederickPrince GeorgesCharlesCecilKent
Frederick as created in 1748Where 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 1748, search the parent county. The Atlas of Historical County Boundaries shows each boundary change.

Research tip

Maryland's land records from colonial times to the present are online at MDLandRec, run by the State Archives, with a free account (check its current terms for recent records). Baltimore City has kept its own records, separate from Baltimore County, since 1851.