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Westminster, Colorado: population and official figures

Population (1 July)
116,182
2025

In depth

What is the population of Westminster, Colorado?

Westminster, Colorado, had an estimated 116,182 residents on 1 July 2025, the 265th largest of the 824 US cities and towns with 50,000 or more people, and the 8th largest of 272 incorporated places in Colorado (Census Bureau Vintage 2025 estimates).

Source: U.S. Census Bureau · saved copy

Is the population of Westminster growing?

Its population is down 471 (0.4%) on the April 2020 estimates base of 116,653, 243rd slowest-growing of 824 US cities of 50,000 or more.

Source: U.S. Census Bureau · saved copy

How fast is Westminster, Colorado growing?

In the year to 1 July 2025 its population fell by 111 (0.10%), from 116,293 in July 2024.

Source: U.S. Census Bureau · saved copy

When does the fiscal year of Westminster end?

The Census Bureau lists Westminster's government in its 2024 finance survey as "Westminster City", with a fiscal year that ends on 31 December.

Source: U.S. Census Bureau · saved copy

More figures

Who runs Westminster?

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

Westminster is in Colorado, which has 6,012,561 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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