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Marion County, MS Demographics

Marion County, MS is the 38th most populous of 82 counties in Mississippi, with 24,441 residents across 542 square miles. That is about 45 people per square mile.

At the 2020 census

Population 24,441
Land area 542 sq mi
Density 45 / sq mi

Data: 2020 Census · American Community Survey 2024

How Marion 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: Marion County, MS

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

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

Census tracts in Marion County, MS

Name Population Sq mi Per sq mi
Census Tract 9501 5,611 157.5 36
Census Tract 9506 4,423 112.5 39
Census Tract 9505 4,178 152.2 27
Census Tract 9504 3,747 7.9 475
Census Tract 9502 3,362 106.7 32
Census Tract 9503 3,120 5.6 553

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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 →