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Wilmington, Delaware: population and official figures

Population (1 July)
73,512
2025

In depth

What is the population of Wilmington, Delaware?

Wilmington, Delaware, had an estimated 73,512 residents on 1 July 2025, the 529th largest of the 824 US cities and towns with 50,000 or more people, and the largest of 57 incorporated places in Delaware (Census Bureau Vintage 2025 estimates).

Source: U.S. Census Bureau · saved copy

Is the population of Wilmington growing?

Its population is up 2,596 (3.7%) on the April 2020 estimates base of 70,916, 286th fastest-growing of 824 US cities of 50,000 or more.

Source: U.S. Census Bureau · saved copy

How fast is Wilmington, Delaware growing?

In the year to 1 July 2025 its population rose by 333 (0.46%), from 73,179 in July 2024.

Source: U.S. Census Bureau · saved copy

When does the fiscal year of Wilmington end?

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

Source: U.S. Census Bureau · saved copy

More figures

Who runs Wilmington?

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

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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