All counties →

Johnston County, NC Demographics

Johnston County, NC is the 12th most populous of 100 counties in North Carolina, with 215,999 residents across 792 square miles. That is about 273 people per square mile.

At the 2020 census

Population 215,999
Land area 792 sq mi
Density 273 / sq mi

Data: 2020 Census · American Community Survey 2024

How Johnston 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: Johnston County, NC

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

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

Census tracts in Johnston County, NC

Name Population Sq mi Per sq mi
Census Tract 402.07 12,721 11.1 1,143
Census Tract 410.01 11,160 10.8 1,031
Census Tract 409.03 9,106 16.9 537
Census Tract 402.09 6,811 15.1 450
Census Tract 402.05 6,321 31.5 201
Census Tract 411.12 6,165 5.5 1,120
Census Tract 411.06 5,392 11.5 467
Census Tract 409.05 5,298 19.1 277
Census Tract 411.07 5,155 5.9 867
Census Tract 404 5,070 18.1 280
Census Tract 411.04 4,880 10.1 481
Census Tract 409.04 4,839 11.5 421
Census Tract 405.01 4,735 39.2 121
Census Tract 402.04 4,645 28.2 165
Census Tract 402.06 4,570 39.3 116
Census Tract 402.08 4,567 6.2 734
Census Tract 414.02 4,435 20.3 219
Census Tract 415.05 4,434 29.0 153
Census Tract 415.07 4,192 5.5 767
Census Tract 415.09 4,191 13.5 310
Census Tract 403.01 4,105 12.1 340
Census Tract 410.05 4,075 7.9 517
Census Tract 415.04 4,004 8.8 453
Census Tract 413.02 3,975 51.1 78
Census Tract 411.05 3,918 7.8 500
Census Tract 411.08 3,910 2.4 1,634
Census Tract 411.11 3,869 5.3 735
Census Tract 411.10 3,769 4.0 948
Census Tract 410.03 3,727 1.8 2,083
Census Tract 403.03 3,501 3.7 958
Census Tract 408 3,495 2.1 1,668
Census Tract 406 3,461 37.0 94
Census Tract 407 3,406 6.2 548
Census Tract 414.01 3,241 15.3 212
Census Tract 411.09 3,207 3.4 933
Census Tract 401.01 2,802 18.8 149
Census Tract 412.05 2,751 7.1 387
Census Tract 415.08 2,682 8.9 301
Census Tract 412.06 2,663 17.2 155
Census Tract 415.11 2,620 10.8 242
Census Tract 401.02 2,383 22.1 108
Census Tract 410.04 2,344 2.9 818
Census Tract 415.06 2,333 5.0 471
Census Tract 409.06 2,313 5.4 427
Census Tract 402.10 2,303 4.9 473
Census Tract 405.02 2,269 16.6 137
Census Tract 401.03 2,223 20.4 109
Census Tract 403.04 2,188 14.3 153
Census Tract 411.13 2,149 3.6 593
Census Tract 413.01 2,133 66.4 32
Census Tract 415.10 1,983 11.0 180
Census Tract 412.03 1,885 25.0 75
Census Tract 412.04 1,625 14.4 113

Related places

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 →