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Boston, Massachusetts: population and official figures

Population (1 July)
672,973
2025

In depth

What is the population of Boston, Massachusetts?

Boston, Massachusetts, had an estimated 672,973 residents on 1 July 2025, the 25th largest of the 824 US cities and towns with 50,000 or more people, and the largest of 58 incorporated places in Massachusetts (Census Bureau Vintage 2025 estimates).

Source: U.S. Census Bureau · saved copy

Is the population of Boston growing?

Its population is down 5,644 (0.8%) on the April 2020 estimates base of 678,617, 214th slowest-growing of 824 US cities of 50,000 or more.

Source: U.S. Census Bureau · saved copy

How fast is Boston, Massachusetts growing?

In the year to 1 July 2025 its population fell by 1,338 (0.20%), from 674,311 in July 2024.

Source: U.S. Census Bureau · saved copy

When does the fiscal year of Boston end?

The Census Bureau lists Boston's government in its 2024 finance survey as "Boston City", with a fiscal year that ends on 30 June.

Source: U.S. Census Bureau · saved copy

More figures

Who runs Boston?

In the United States, cities and towns are run by municipalities: Elected council; mayor elected directly or chosen by the council; in council-manager systems the council hires a professional city manager. Police, fire, local roads, zoning, water, parks. Townships exist in fewer than half the states.

How local power works in the United States

Boston is in Massachusetts, which has 7,154,084 residents.

Cities of a similar size in the United States

Up a level: all cities in the United States · the United States · government and power

Sources

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