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Rio Arriba County, NM Demographics

Rio Arriba County, NM is the 13th most populous of 33 counties in New Mexico, with 40,363 residents across 5,861 square miles. That is about 7 people per square mile.

At the 2020 census

Population 40,363
Land area 5,861 sq mi
Density 7 / sq mi

Data: 2020 Census · American Community Survey 2024

How Rio Arriba 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 Arriba County, NM

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

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

Census tracts in Rio Arriba County, NM

Name Population Sq mi Per sq mi
Census Tract 9441 6,580 26.4 249
Census Tract 9408 4,534 57.2 79
Census Tract 2 3,802 148.0 26
Census Tract 9410 3,670 2,026.7 2
Census Tract 5 3,658 1,772.5 2
Census Tract 9407 3,570 2.5 1,409
Census Tract 3.01 3,440 119.8 29
Census Tract 1 3,233 121.1 27
Census Tract 3.02 3,164 15.8 200
Census Tract 4.02 2,928 897.7 3
Census Tract 4.01 1,784 673.1 3

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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 →