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Barnstable County, MA Demographics

Barnstable County, MA is the 9th most populous of 14 counties in Massachusetts, with 228,733 residents across 394 square miles. That is about 580 people per square mile.

At the 2020 census

Population 228,733
Land area 394 sq mi
Density 580 / sq mi

Data: 2020 Census · American Community Survey 2024

How Barnstable 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: Barnstable County, MA

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

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

Census tracts in Barnstable County, MA

Name Population Sq mi Per sq mi
Census Tract 144.02 7,201 15.8 454
Census Tract 135 6,884 9.1 755
Census Tract 136 6,203 7.2 858
Census Tract 120.01 5,978 4.0 1,499
Census Tract 131 5,969 8.8 675
Census Tract 126.02 5,668 1.3 4,406
Census Tract 121.01 5,608 5.3 1,061
Census Tract 145 5,481 6.7 819
Census Tract 137 5,435 5.3 1,027
Census Tract 109 5,399 12.0 451
Census Tract 132 5,137 7.6 680
Census Tract 111 5,075 7.4 684
Census Tract 122 5,055 18.4 274
Census Tract 138 5,054 4.9 1,041
Census Tract 108 4,919 11.0 449
Census Tract 139 4,890 6.1 806
Census Tract 127 4,642 3.7 1,251
Census Tract 110.02 4,604 8.3 556
Census Tract 143 4,593 6.1 749
Census Tract 118.02 4,460 5.3 837
Census Tract 150.01 4,449 4.0 1,126
Census Tract 146 4,378 4.8 918
Census Tract 129 4,373 2.4 1,859
Census Tract 140.02 4,284 7.4 582
Census Tract 151 4,193 6.4 653
Census Tract 150.02 4,147 5.4 762
Census Tract 115 4,132 4.3 958
Census Tract 128 4,120 3.0 1,367
Census Tract 153 3,957 5.1 776
Census Tract 134 3,893 8.5 461
Census Tract 112 3,761 5.2 726
Census Tract 125.02 3,709 2.3 1,611
Census Tract 101 3,664 9.7 379
Census Tract 147 3,646 2.4 1,504
Census Tract 149 3,627 6.2 590
Census Tract 148 3,591 2.0 1,759
Census Tract 102.06 3,566 19.8 180
Census Tract 107 3,460 10.5 330
Census Tract 104 3,345 6.0 556
Census Tract 126.01 3,298 1.3 2,463
Census Tract 133 3,275 4.9 664
Census Tract 121.02 3,269 3.8 864
Census Tract 120.02 3,265 2.2 1,465
Census Tract 106 3,134 5.7 552
Census Tract 103.06 3,080 6.9 447
Census Tract 114 3,052 5.9 514
Census Tract 116 3,003 2.5 1,223
Census Tract 130.02 2,988 6.0 498
Census Tract 105 2,962 8.1 364
Census Tract 103.04 2,672 7.1 377
Census Tract 113 2,569 5.1 507
Census Tract 102.08 2,454 21.0 117
Census Tract 118.01 2,443 3.5 691
Census Tract 152 2,267 5.9 385
Census Tract 117 1,918 2.8 677
Census Tract 141 797 31.9 25

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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 →