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Adams County, CO Demographics

Adams County, CO is the 5th most populous of 64 counties in Colorado, with 519,571 residents across 1,167 square miles. That is about 445 people per square mile.

At the 2020 census

Population 519,571
Land area 1,167 sq mi
Density 445 / sq mi

Data: 2020 Census · American Community Survey 2024

How Adams 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: Adams County, CO

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

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

Census tracts in Adams County, CO

Name Population Sq mi Per sq mi
Census Tract 85.38 11,712 4.4 2,635
Census Tract 85.40 10,376 5.9 1,756
Census Tract 85.24 9,374 1.9 4,870
Census Tract 85.59 8,672 3.3 2,617
Census Tract 85.50 8,319 1.7 4,902
Census Tract 93.16 8,150 0.9 9,354
Census Tract 87.09 8,139 3.0 2,707
Census Tract 85.33 7,706 1.3 5,952
Census Tract 85.26 7,509 2.8 2,690
Census Tract 601 7,318 2.5 2,968
Census Tract 85.05 7,126 1.2 6,020
Census Tract 85.65 7,013 1.4 4,903
Census Tract 92.04 6,918 1.0 7,104
Census Tract 80 6,775 0.8 8,970
Census Tract 85.45 6,731 1.2 5,572
Census Tract 83.08 6,714 1.7 4,033
Census Tract 82 6,521 1.7 3,755
Census Tract 91.04 6,470 1.0 6,427
Census Tract 85.06 6,460 0.6 10,484
Census Tract 93.18 6,414 0.5 12,969
Census Tract 85.07 6,290 1.0 6,183
Census Tract 96.03 6,246 0.8 7,556
Census Tract 85.44 6,242 1.0 6,198
Census Tract 93.10 6,201 0.6 10,803
Census Tract 86.06 6,101 1.5 4,118
Census Tract 85.56 6,076 1.3 4,629
Census Tract 85.55 5,848 1.9 3,136
Census Tract 93.04 5,809 1.3 4,377
Census Tract 94.09 5,807 1.5 3,919
Census Tract 85.62 5,787 2.3 2,556
Census Tract 95.02 5,764 1.6 3,535
Census Tract 93.25 5,721 1.5 3,877
Census Tract 85.53 5,596 61.0 92
Census Tract 87.06 5,572 0.7 7,649
Census Tract 85.08 5,558 1.0 5,742
Census Tract 84.01 5,537 192.3 29
Census Tract 79 5,490 0.6 8,681
Census Tract 87.05 5,399 0.9 5,726
Census Tract 94.07 5,352 0.7 7,306
Census Tract 84.02 5,325 670.3 8
Census Tract 93.22 5,241 0.5 10,523
Census Tract 602 5,227 1.9 2,736
Census Tract 85.52 5,185 14.4 359
Census Tract 88.01 5,138 1.5 3,418
Census Tract 94.01 5,060 1.4 3,735
Census Tract 90.04 5,040 0.5 9,946
Census Tract 96.07 4,884 0.9 5,683
Census Tract 85.61 4,824 8.6 561
Census Tract 83.55 4,820 1.4 3,516
Census Tract 94.08 4,802 1.5 3,259
Census Tract 90.01 4,770 0.8 5,857
Census Tract 96.04 4,724 0.9 5,523
Census Tract 92.03 4,594 1.0 4,482
Census Tract 85.49 4,581 0.5 8,999
Census Tract 92.07 4,560 0.6 7,385
Census Tract 86.04 4,551 0.8 5,416
Census Tract 94.06 4,493 0.7 6,726
Census Tract 85.63 4,429 1.5 3,029
Census Tract 90.03 4,405 0.7 6,575
Census Tract 85.35 4,389 5.9 743
Census Tract 92.02 4,386 0.7 6,477
Census Tract 91.03 4,383 1.6 2,696
Census Tract 93.21 4,383 0.5 8,672
Census Tract 88.02 4,375 4.7 940
Census Tract 93.08 4,372 0.6 7,720
Census Tract 85.36 4,353 2.8 1,551
Census Tract 85.34 4,344 0.9 4,805
Census Tract 600.02 4,287 6.0 712
Census Tract 83.09 4,278 4.6 923
Census Tract 93.27 4,248 1.0 4,413
Census Tract 85.58 4,220 1.5 2,807
Census Tract 91.01 4,220 0.7 5,914
Census Tract 86.05 4,103 0.8 5,360
Census Tract 97.51 4,048 1.1 3,553
Census Tract 83.54 4,022 41.7 96
Census Tract 78.01 3,936 0.2 15,890
Census Tract 78.02 3,893 0.2 15,819
Census Tract 93.06 3,863 0.7 5,844
Census Tract 93.07 3,828 0.7 5,553
Census Tract 612 3,819 4.1 932
Census Tract 93.09 3,782 0.5 7,649
Census Tract 93.23 3,704 0.8 4,395
Census Tract 95.53 3,528 2.9 1,197
Census Tract 85.46 3,517 0.5 6,877
Census Tract 85.47 3,468 0.5 7,427
Census Tract 96.06 3,442 0.7 4,795
Census Tract 94.10 3,381 1.1 3,206
Census Tract 95.01 3,215 0.4 7,656
Census Tract 93.20 3,202 0.7 4,339
Census Tract 150 3,112 5.4 572
Census Tract 93.19 3,026 0.3 11,500
Census Tract 97.52 3,014 0.8 3,867
Census Tract 94.11 3,014 0.5 6,088
Census Tract 96.08 2,892 0.5 5,593
Census Tract 92.06 2,630 0.5 5,259
Census Tract 93.26 2,619 0.5 5,300
Census Tract 600.01 2,581 1.9 1,343
Census Tract 85.54 2,507 0.5 5,134
Census Tract 89.01 2,478 3.1 807
Census Tract 85.60 2,203 4.6 483

Showing the 100 most populous of 107 — the rest are shown on the map.

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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 →