Welcome!

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Pima County AZGenWeb is a free genealogical site about the history of the Arizona county. It is a member of AZGenWeb, which is a member of USGenWeb®. We hope you find helpful clues for your research of Pima County ancestors.

Are you familiar with the area? Do you have a family tree connection to the area? Please consider contributing your pieces of Pima County family history. Corrections, updates, and additions to this site are always welcome. Our combined efforts can make this a great site for all who visit!

County Coordinator: Norma Hass normahass01@gmail.com

Co-County Coordinator: YOU? We are looking for a volunteer who has a sincere interest in the genealogy of Pima County and is willing to help others along their family history journey. If you are interested, please don't hesitate to contact us.

COUNTY FORMATION

Pima County, the second largest of the four original Arizona counties, was created by the 1st Arizona Territorial Legislature in 1864 with land acquired through the Gadsden Purchase from Mexico in 1853. Pima County lost its northwestern portion to the creation of Maricopa County in 1873. A northern portion was lost in 1875 and 1877 to the formation and expansion of Pinal County. The eastern section of Pima County was taken when Graham and Cochise Counties were formed in 1881. And finally, in 1899, a small piece became Santa Cruz County.

Tucson is the County Seat.

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