Data / Population / Washington County

Population in Washington County

Population in Washington County was 4,732 in 2025, according to the U.S. Census Bureau. That is down 0.3% from 2024. That is the 53rd highest of 64 counties in 2025.

2025, persons4,732
Change on 2024-0.3%
Rank53rd of 64Counties in Colorado ranked
Series high4,8652021
Series low4,7322025

Population in Washington County, 2020 to 2025

CSVChart (SVG)

4,7004,7504,8004,8504,9002020202120222023202420252020: 4,810 persons2021: 4,865 persons2022: 4,839 persons2023: 4,849 persons2024: 4,748 persons2025: 4,732 persons
persons. Source: U.S. Census Bureau. Retrieved 2026-10-08, published 2026-03-26.
All 6 values
Periodpersons
20254,732
20244,748
20234,849
20224,839
20214,865
20204,810

Compared with Colorado and United States

Place2025
Washington County4,732
Colorado6,012,561
United States341,784,857

Rankings

Definition

Resident population. Spain and the EU: 1 January, with Spanish figures from the official municipal register (Padrón). United States: Census Bureau population estimates for 1 July. Other countries and the World: World Bank mid-year estimates, which count all residents regardless of legal status or citizenship.

For Denmark, Statistics Denmark counts the registered resident population on 1 January. Greenland and the Faroe Islands are excluded. The annual series selects the first-quarter reference date from FOLK1A. The World Bank series exists for every country, so use it (through compare) to rank countries on one basis.

How to cite

U.S. Census Bureau. Annual estimates of the resident population for the United States, states and counties, 1 July (Population Estimates Program). https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-08.

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Questions

What is the population in Washington County?

Population in Washington County was 4,732 in 2025, according to the U.S. Census Bureau. That is down 0.3% from 2024. That is the 53rd highest of 64 counties in 2025.

Where does this figure come from?

U.S. Census Bureau. Annual estimates of the resident population for the United States, states and counties, 1 July (Population Estimates Program). Retrieved by Invokely on 2026-10-08.

What was the highest population in Washington County?

4,865 in 2021, the highest value since 2020 in this series.

More statistics for Washington County

All statistics for Washington County