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Linn County, MO Demographics

Linn County, MO is the 76th most populous of 115 counties in Missouri, with 11,874 residents across 616 square miles. That is about 19 people per square mile.

At the 2020 census

Population 11,874
Land area 616 sq mi
Density 19 / sq mi

Data: 2020 Census · American Community Survey 2024

How Linn County compares to the US

We're computing this county's comparison table — check back shortly. Population, land area, and density above are already exact.

Central Location: Linn County, MO

Measured from the county's main population center using 2020 census blocks.

We're computing the drive-time and radius areas around Linn County, MO — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.

Census tracts in Linn County, MO

Name Population Sq mi Per sq mi
Census Tract 4903 2,757 94.9 29
Census Tract 4904 2,709 7.0 388
Census Tract 4905 2,625 36.3 72
Census Tract 4902 2,215 241.6 9
Census Tract 4901 1,568 235.8 7

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About this page

This page shows demographics for a US county from the 2020 census and the American Community Survey: population, land area, density, urban share, and how the county compares to national averages for income, housing, age, and more.

Counties subdivide into census tracts, listed below with their populations. The drive-time and radius tables measure the population around the county's main population center.

Read how BlockAtlas computes population within an area →