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Plymouth County, MA Demographics

Plymouth County, MA is the 7th most populous of 14 counties in Massachusetts, with 530,767 residents across 659 square miles. That is about 806 people per square mile.

At the 2020 census

Population 530,767
Land area 659 sq mi
Density 806 / sq mi

Data: 2020 Census · American Community Survey 2024

How Plymouth 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: Plymouth County, MA

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

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

Census tracts in Plymouth County, MA

Name Population Sq mi Per sq mi
Census Tract 5011.02 9,185 4.4 2,091
Census Tract 5261 7,749 16.0 485
Census Tract 5091.01 7,584 11.8 643
Census Tract 5031.02 7,428 8.2 910
Census Tract 5031.01 7,405 7.4 1,004
Census Tract 5421.01 7,354 34.5 213
Census Tract 5251.01 7,314 8.6 846
Census Tract 5081.01 7,063 10.0 709
Census Tract 5102 6,999 1.9 3,713
Census Tract 5108 6,900 0.4 15,685
Census Tract 5201 6,854 3.5 1,986
Census Tract 5451 6,844 10.9 626
Census Tract 5251.04 6,765 6.5 1,040
Census Tract 5601 6,508 17.3 375
Census Tract 5452 6,478 16.0 405
Census Tract 5306 6,456 38.3 168
Census Tract 5107 6,340 0.8 7,666
Census Tract 5061.02 6,324 9.0 704
Census Tract 5113.01 6,312 1.3 5,008
Census Tract 5422 6,311 19.1 330
Census Tract 5082 6,305 8.5 746
Census Tract 5614 6,225 3.2 1,939
Census Tract 5308.01 6,209 8.6 721
Census Tract 5021.01 6,196 1.9 3,204
Census Tract 5202.02 6,129 4.4 1,403
Census Tract 5091.02 6,124 6.8 895
Census Tract 5442 6,075 26.8 226
Census Tract 5221.02 6,038 10.8 560
Census Tract 5309.03 5,998 5.5 1,093
Census Tract 5071.04 5,967 10.2 583
Census Tract 5022 5,963 4.6 1,310
Census Tract 5307 5,947 11.5 518
Census Tract 5304 5,913 5.8 1,019
Census Tract 5305 5,744 2.8 2,062
Census Tract 5041.02 5,733 11.2 511
Census Tract 5411 5,717 33.6 170
Census Tract 5021.02 5,644 3.5 1,593
Census Tract 5041.01 5,618 9.7 578
Census Tract 5071.01 5,589 9.5 589
Census Tract 5111 5,571 1.4 4,124
Census Tract 5441 5,570 10.5 532
Census Tract 5454 5,518 6.2 892
Census Tract 5611 5,347 14.1 378
Census Tract 5112 5,322 1.5 3,543
Census Tract 5051.02 5,317 6.3 851
Census Tract 5062.03 5,256 4.7 1,114
Census Tract 5115 5,139 0.3 18,240
Census Tract 5117.01 5,131 1.2 4,272
Census Tract 5012.04 5,023 5.5 905
Census Tract 5081.02 4,978 3.4 1,474
Census Tract 5101 4,925 1.2 4,061
Census Tract 5211.01 4,740 3.0 1,599
Census Tract 5308.02 4,634 3.1 1,507
Census Tract 5221.01 4,601 4.2 1,088
Census Tract 5105.03 4,571 1.0 4,621
Census Tract 5071.03 4,534 4.0 1,138
Census Tract 5114 4,520 0.3 16,098
Census Tract 5052.02 4,520 2.8 1,601
Census Tract 5309.02 4,512 7.4 610
Census Tract 5103 4,490 0.4 11,359
Census Tract 5116.01 4,487 0.4 12,447
Census Tract 5453 4,463 2.7 1,649
Census Tract 5301 4,447 4.2 1,057
Census Tract 5401.03 4,446 14.6 305
Census Tract 5401.01 4,435 9.1 489
Census Tract 5232.03 4,426 5.8 760
Census Tract 5423.02 4,335 2.9 1,489
Census Tract 5104 4,332 0.3 16,549
Census Tract 5241.02 4,326 5.2 835
Census Tract 5105.05 4,247 1.2 3,647
Census Tract 5001.04 4,224 0.8 5,126
Census Tract 5061.04 4,148 6.4 648
Census Tract 5303 4,118 1.1 3,706
Census Tract 5202.01 4,079 2.1 1,904
Census Tract 5051.04 4,027 1.6 2,462
Census Tract 5302 3,983 1.2 3,197
Census Tract 5212.02 3,940 2.2 1,812
Census Tract 5252.04 3,934 5.9 662
Census Tract 5116.02 3,908 1.2 3,127
Census Tract 5012.01 3,881 3.1 1,267
Census Tract 5232.04 3,755 4.1 908
Census Tract 5113.02 3,750 1.1 3,383
Census Tract 5001.01 3,617 1.3 2,795
Census Tract 5423.01 3,586 1.0 3,527
Census Tract 5105.01 3,574 0.6 6,094
Census Tract 5011.01 3,516 3.0 1,155
Census Tract 5241.01 3,381 10.1 333
Census Tract 5110 3,346 0.6 5,915
Census Tract 5211.02 3,344 0.8 4,175
Census Tract 5231 3,261 3.5 924
Census Tract 5309.04 3,256 6.9 472
Census Tract 5106 3,243 2.0 1,584
Census Tract 5212.01 3,097 1.0 3,106
Census Tract 5109 3,042 0.3 10,646
Census Tract 5232.01 2,998 3.8 799
Census Tract 5431 2,930 14.7 200
Census Tract 5062.06 2,886 1.3 2,182
Census Tract 9803 2,820 0.3 9,618
Census Tract 5117.02 2,818 1.7 1,615
Census Tract 5061.03 2,783 3.5 803

Showing the 100 most populous of 110 — 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 →