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Boston city, Massachusetts

Official LSAD Designation: Boston city • Census GEOID: 2507000 • Suffolk County

Demographics & Population Profile

Population and demographics for Boston city.

Demographic Variable Estimate / Count Margin of Error Period Source
Total Population (2025 PEP Estimate) 672,973 — 2025 Census
Median Age 33.3 yrs ±0.2 2020-2024 Census ACS 5-Year 2024
Total Households 283,374 ±1,403 2020-2024 Census ACS 5-Year 2024
Source: U.S. Census Bureau (PEP, ACS 5-Year).