Data / Population / Linn County

Population in Linn County

Population in Linn County was 11,815 in 2025, according to the U.S. Census Bureau. That is down 0.5% from 2024. That is the 77th highest of 115 counties in 2025.

2025, persons11,815
Change on 2024-0.5%
Rank77th of 115Counties in Missouri ranked
Series high11,8742024
Series low11,7912023

Population in Linn County, 2020 to 2025

CSVChart (SVG)

11.8K11.8K11.8K11.8K11.9K11.9K2020202120222023202420252020: 11,854 persons2021: 11,843 persons2022: 11,840 persons2023: 11,791 persons2024: 11,874 persons2025: 11,815 persons
persons. Source: U.S. Census Bureau. Retrieved 2026-10-08, published 2026-03-26.
All 6 values
Periodpersons
202511,815
202411,874
202311,791
202211,840
202111,843
202011,854

Compared with Missouri and United States

Place2025
Linn County11,815
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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Questions

What is the population in Linn County?

Population in Linn County was 11,815 in 2025, according to the U.S. Census Bureau. That is down 0.5% from 2024. That is the 77th 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 Linn County?

11,874 in 2024, the highest value since 2020 in this series.

More statistics for Linn County

All statistics for Linn County