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Stamford, Connecticut: population and official figures

Population (1 July)
139,535
2025

In depth

What is the population of Stamford, Connecticut?

Stamford, Connecticut, had an estimated 139,535 residents on 1 July 2025, the 203rd largest of the 824 US cities and towns with 50,000 or more people, and the 2nd largest of 30 incorporated places in Connecticut (Census Bureau Vintage 2025 estimates).

Source: U.S. Census Bureau · saved copy

Is the population of Stamford growing?

Its population is up 4,101 (3.0%) on the April 2020 estimates base of 135,434, 325th fastest-growing of 824 US cities of 50,000 or more.

Source: U.S. Census Bureau · saved copy

How fast is Stamford, Connecticut growing?

In the year to 1 July 2025 its population rose by 191 (0.14%), from 139,344 in July 2024.

Source: U.S. Census Bureau · saved copy

When does the fiscal year of Stamford end?

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

Source: U.S. Census Bureau · saved copy

More figures

Who runs Stamford?

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

Stamford is in Connecticut, which has 3,688,496 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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