Data / Population / Knox County

Population in Knox County

Population in Knox County was 3,728 in 2025, according to the U.S. Census Bureau. That is up 0.5% from 2024. That is the 113th highest of 115 counties in 2025.

2025, persons3,728
Change on 2024+0.5%
Rank113th of 115Counties in Missouri ranked
Series high3,7792021
Series low3,7082024

Population in Knox County, 2020 to 2025

CSVChart (SVG)

3,7003,7203,7403,7603,7802020202120222023202420252020: 3,733 persons2021: 3,779 persons2022: 3,767 persons2023: 3,722 persons2024: 3,708 persons2025: 3,728 persons
persons. Source: U.S. Census Bureau. Retrieved 2026-10-08, published 2026-03-26.
All 6 values
Periodpersons
20253,728
20243,708
20233,722
20223,767
20213,779
20203,733

Compared with Missouri and United States

Place2025
Knox County3,728
Missouri6,270,541
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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What is the latest population in Knox County? Cite the source.
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Questions

What is the population in Knox County?

Population in Knox County was 3,728 in 2025, according to the U.S. Census Bureau. That is up 0.5% from 2024. That is the 113th highest of 115 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 Knox County?

3,779 in 2021, the highest value since 2020 in this series.

More statistics for Knox County

All statistics for Knox County