Onslow County, NC Demographics
Onslow County, NC is the 13th most populous of 100 counties in North Carolina, with 204,576 residents across 762 square miles. That is about 268 people per square mile.
At the 2020 census
| Population | 204,576 |
|---|---|
| Land area | 762 sq mi |
| Density | 268 / sq mi |
Data: 2020 Census · American Community Survey 2024
How Onslow 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: Onslow County, NC
Measured from the county's main population center using 2020 census blocks.
We're computing the drive-time and radius areas around Onslow County, NC — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.
Census tracts in Onslow County, NC
| Name | Population | Sq mi | Per sq mi |
|---|---|---|---|
| Census Tract 6 | 13,330 | 7.4 | 1,804 |
| Census Tract 4.01 | 9,813 | 83.1 | 118 |
| Census Tract 12.02 | 8,048 | 7.0 | 1,150 |
| Census Tract 13.04 | 7,925 | 5.0 | 1,591 |
| Census Tract 4.05 | 7,684 | 12.9 | 595 |
| Census Tract 24 | 7,558 | 7.8 | 970 |
| Census Tract 2.05 | 7,191 | 24.0 | 299 |
| Census Tract 1.05 | 6,990 | 13.0 | 539 |
| Census Tract 3.06 | 6,847 | 59.6 | 115 |
| Census Tract 1.03 | 6,398 | 146.0 | 44 |
| Census Tract 10 | 6,152 | 7.5 | 816 |
| Census Tract 28.03 | 6,081 | 6.1 | 1,002 |
| Census Tract 7 | 6,025 | 6.8 | 887 |
| Census Tract 21 | 5,900 | 6.6 | 889 |
| Census Tract 11.01 | 5,068 | 8.9 | 572 |
| Census Tract 22.01 | 4,825 | 1.9 | 2,567 |
| Census Tract 2.03 | 4,668 | 28.1 | 166 |
| Census Tract 2.04 | 4,466 | 8.2 | 546 |
| Census Tract 14 | 4,433 | 2.4 | 1,883 |
| Census Tract 23 | 4,431 | 3.4 | 1,300 |
| Census Tract 22.02 | 4,292 | 1.1 | 3,793 |
| Census Tract 3.04 | 4,222 | 35.1 | 120 |
| Census Tract 2.07 | 4,065 | 32.3 | 126 |
| Census Tract 13.01 | 4,048 | 1.0 | 4,066 |
| Census Tract 11.02 | 4,035 | 5.3 | 759 |
| Census Tract 2.06 | 4,000 | 26.3 | 152 |
| Census Tract 9.02 | 3,877 | 4.1 | 953 |
| Census Tract 12.01 | 3,367 | 7.9 | 428 |
| Census Tract 5 | 3,349 | 104.1 | 32 |
| Census Tract 13.02 | 3,334 | 5.0 | 666 |
| Census Tract 25 | 3,263 | 8.4 | 389 |
| Census Tract 26 | 3,202 | 3.4 | 952 |
| Census Tract 3.05 | 3,151 | 16.5 | 192 |
| Census Tract 1.04 | 2,968 | 14.2 | 209 |
| Census Tract 15 | 2,483 | 0.6 | 3,856 |
| Census Tract 13.03 | 2,431 | 1.6 | 1,482 |
| Census Tract 17 | 2,304 | 0.9 | 2,496 |
| Census Tract 28.02 | 2,272 | 4.5 | 502 |
| Census Tract 28.01 | 2,049 | 9.2 | 224 |
| Census Tract 3.03 | 1,955 | 24.2 | 81 |
| Census Tract 18 | 1,749 | 1.0 | 1,705 |
| Census Tract 4.04 | 1,430 | 1.9 | 750 |
| Census Tract 4.03 | 1,339 | 6.8 | 197 |
| Census Tract 9.01 | 1,139 | 0.5 | 2,243 |
| Census Tract 8 | 419 | 0.6 | 745 |
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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.