Geography

Arizona vs California: Region

Arizona and California are both in the West region.

Arizona flag
Arizona
AZ · West
West
U.S. Census Bureau geographic region.
California flag
California
CA · West
West
U.S. Census Bureau geographic region.
Arizona
West
California
West

People also ask

Arizona vs California Region — common questions

QWhat is Arizona's region?

Arizona's region is West.

QWhat is California's region?

California's region is West.

More comparisons: Arizona vs California

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Data source and freshness

Primary source
U.S. Census Bureau — Geographic reference files
Data period
Current incorporated reference data
Dataset reviewed
July 23, 2026
Method note
Census Bureau region classification.