Geography

California vs Massachusetts: Region

California is in the West region, while Massachusetts is in the Northeast region.

California flag
California
CA · West
West
U.S. Census Bureau geographic region.
Massachusetts flag
Massachusetts
MA · Northeast
Northeast
U.S. Census Bureau geographic region.
California
West
Massachusetts
Northeast

People also ask

California vs Massachusetts Region — common questions

QWhat is California's region?

California's region is West.

QWhat is Massachusetts's region?

Massachusetts's region is Northeast.

More comparisons: California vs Massachusetts

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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.