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Cobb County, GA Demographics

Cobb County, GA is the 3rd most populous of 159 counties in Georgia, with 766,069 residents across 340 square miles. That is about 2,255 people per square mile.

At the 2020 census

Population 766,069
Land area 340 sq mi
Density 2,255 / sq mi

Data: 2020 Census · American Community Survey 2024

How Cobb 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: Cobb County, GA

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

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

Census tracts in Cobb County, GA

Name Population Sq mi Per sq mi
Census Tract 310.04 8,711 1.6 5,415
Census Tract 306.02 7,532 6.2 1,222
Census Tract 303.45 7,193 1.7 4,351
Census Tract 302.48 6,922 2.6 2,634
Census Tract 311.14 6,880 1.1 6,328
Census Tract 304.05 6,414 1.5 4,148
Census Tract 309.12 6,353 2.0 3,162
Census Tract 314.09 6,348 5.2 1,218
Census Tract 303.31 6,243 2.4 2,565
Census Tract 305.05 6,234 2.0 3,090
Census Tract 306.03 6,162 2.2 2,757
Census Tract 304.13 6,069 0.6 10,902
Census Tract 311.18 5,993 2.0 3,064
Census Tract 315.06 5,991 3.6 1,667
Census Tract 313.16 5,793 2.5 2,331
Census Tract 311.12 5,763 1.6 3,654
Census Tract 311.17 5,691 2.3 2,458
Census Tract 315.11 5,638 4.7 1,209
Census Tract 311.01 5,627 1.3 4,378
Census Tract 308 5,617 2.4 2,300
Census Tract 302.50 5,586 3.6 1,572
Census Tract 310.05 5,537 2.0 2,831
Census Tract 315.12 5,440 4.9 1,115
Census Tract 302.40 5,419 2.3 2,408
Census Tract 303.35 5,399 2.0 2,706
Census Tract 310.01 5,383 5.5 971
Census Tract 303.52 5,308 3.2 1,644
Census Tract 313.08 5,287 2.5 2,138
Census Tract 313.14 5,262 3.2 1,652
Census Tract 313.19 5,260 2.1 2,517
Census Tract 305.07 5,253 2.4 2,234
Census Tract 302.52 5,251 3.7 1,410
Census Tract 302.35 5,222 4.8 1,087
Census Tract 312.07 5,182 1.1 4,836
Census Tract 301.07 5,151 1.6 3,244
Census Tract 313.22 5,129 1.6 3,230
Census Tract 302.47 5,125 1.1 4,813
Census Tract 304.10 5,114 1.7 3,084
Census Tract 302.36 5,110 2.0 2,527
Census Tract 303.27 5,098 1.9 2,733
Census Tract 304.07 5,036 1.7 3,031
Census Tract 303.42 5,022 1.8 2,790
Census Tract 303.48 5,013 2.1 2,443
Census Tract 310.07 5,007 1.1 4,739
Census Tract 301.08 4,979 6.2 798
Census Tract 301.11 4,971 3.3 1,514
Census Tract 302.55 4,971 1.2 4,041
Census Tract 303.37 4,943 1.8 2,810
Census Tract 313.15 4,934 2.8 1,773
Census Tract 303.43 4,926 1.8 2,813
Census Tract 303.47 4,885 1.8 2,787
Census Tract 301.10 4,882 2.4 2,031
Census Tract 303.41 4,877 1.8 2,717
Census Tract 303.19 4,785 2.7 1,795
Census Tract 311.16 4,764 1.1 4,505
Census Tract 303.54 4,755 2.3 2,070
Census Tract 303.29 4,751 1.6 2,884
Census Tract 307 4,728 1.7 2,843
Census Tract 312.15 4,724 1.0 4,595
Census Tract 302.44 4,722 3.1 1,536
Census Tract 312.09 4,719 1.3 3,587
Census Tract 314.10 4,700 1.6 2,912
Census Tract 305.06 4,672 3.1 1,512
Census Tract 302.33 4,667 2.7 1,711
Census Tract 314.12 4,666 1.6 2,991
Census Tract 305.11 4,663 1.7 2,768
Census Tract 303.26 4,662 2.7 1,700
Census Tract 311.15 4,645 1.4 3,284
Census Tract 302.43 4,621 1.4 3,352
Census Tract 304.12 4,612 0.8 5,972
Census Tract 313.18 4,608 1.1 4,280
Census Tract 313.20 4,536 0.8 5,848
Census Tract 302.62 4,525 2.7 1,662
Census Tract 313.17 4,489 2.4 1,882
Census Tract 303.59 4,434 1.6 2,838
Census Tract 303.56 4,425 1.0 4,572
Census Tract 311.20 4,408 1.8 2,426
Census Tract 310.06 4,388 0.8 5,696
Census Tract 302.42 4,367 1.4 3,117
Census Tract 302.57 4,286 0.9 4,844
Census Tract 315.13 4,261 2.6 1,633
Census Tract 314.11 4,229 2.3 1,841
Census Tract 303.70 4,222 1.7 2,539
Census Tract 314.14 4,220 2.2 1,903
Census Tract 314.16 4,186 3.8 1,099
Census Tract 313.06 4,176 2.1 1,953
Census Tract 311.19 4,172 1.6 2,550
Census Tract 309.08 4,168 1.0 4,151
Census Tract 302.74 4,148 1.3 3,153
Census Tract 302.49 4,135 1.9 2,171
Census Tract 302.56 4,127 3.1 1,311
Census Tract 301.13 4,124 0.8 4,882
Census Tract 315.15 4,123 3.4 1,206
Census Tract 306.04 4,119 1.3 3,139
Census Tract 312.17 4,098 0.9 4,779
Census Tract 309.07 4,047 2.2 1,846
Census Tract 301.04 4,018 1.6 2,578
Census Tract 309.06 3,997 1.9 2,075
Census Tract 303.40 3,979 1.7 2,406
Census Tract 313.24 3,972 2.5 1,567

Showing the 100 most populous of 186 — 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 →