Population Non-Hispanic Asian % by Zip Code (ZCTA5) — Massachusetts

NOTE: Gray indicates insufficient data or a suppressed estimate.

The highest concentrations of Non-Hispanic Asian residents cluster heavily in the Greater Boston metro area, particularly in zip codes spanning the Route 128/I-95 corridor through communities like Lexington, Burlington, and Quincy, where several zip codes exceed 25–50%. Western Massachusetts, Cape Cod, and the southeastern portions of the state consistently register below 2–5%, creating a stark east-west demographic divide. A few isolated pockets of moderate Asian population percentages appear in the Pioneer Valley near Amherst and Northampton, likely influenced by the Five College consortium institutions.

Data: U.S. Census Bureau, 2023 ACS

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