Starting in 1790, the United States government took a census every 10 years. Census records exist for the territory and state of Arizona from 1860-1930. Arizona territory was separated from the New Mexico territory in 1863. As a result, those living south of the Gila River in 1860 were enumerated in New Mexico Territory.
It is often encouraged to substitute the great registers of Arizona for early research prior to 1910 as they provide an often yearly picture of the inhabitants of Arizona.
1864 Arizona Territory Census
- Arizona Territory (hosted at USGenWeb Archives)
Arizona Census Records by County
- Apache County, Arizona Census Records
- Cochise County, Arizona Census Records
- Coconino County, Arizona Census Records
- Gila County, Arizona Census Records
- Graham County, Arizona Census Records
- Greenlee County, Arizona Census Records
- La Paz County, Arizona Census Records
- Maricopa County, Arizona Census Records
- Mohave County, Arizona Census Records
- Navajo County, Arizona Census Records
- Pima County, Arizona Census Records
- Pinal County, Arizona Census Records
- Santa Cruz County, Arizona Census Records
- Yavapai County, Arizona Census Records
- Yuma County, Arizona Census Records
Arizona State Census Information
There were two distinct territorial census taken of Arizona at the bequest of Congress. The first occurred in 1864, the second in 1866. The genealogy community is fortunate to have available online the 1864 Arizona Territory census. While only the First Judicial District has been transcribed, the remainder is available for free in image format.
