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Union Parish, LA Demographics

Union Parish, LA is the 42nd most populous of 64 counties in Louisiana, with 21,107 residents across 877 square miles. That is about 24 people per square mile.

At the 2020 census

Population 21,107
Land area 877 sq mi
Density 24 / sq mi

Data: 2020 Census · American Community Survey 2024

How Union Parish 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: Union Parish, LA

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

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

Census tracts in Union Parish, LA

Name Population Sq mi Per sq mi
Census Tract 9605 4,631 164.0 28
Census Tract 9601 3,728 325.7 11
Census Tract 9606 3,511 108.8 32
Census Tract 9604 3,327 8.1 409
Census Tract 9602 3,120 177.0 18
Census Tract 9603 2,790 93.3 30

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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 →