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Rio Blanco County, CO Demographics

Rio Blanco County, CO is the 45th most populous of 64 counties in Colorado, with 6,529 residents across 3,221 square miles. That is about 2 people per square mile.

At the 2020 census

Population 6,529
Land area 3,221 sq mi
Density 2 / sq mi

Data: 2020 Census · American Community Survey 2024

How Rio Blanco 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: Rio Blanco County, CO

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

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

Census tracts in Rio Blanco County, CO

Name Population Sq mi Per sq mi
Census Tract 9511 3,840 1,990.8 2
Census Tract 9512 2,689 1,230.2 2

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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 →