Onslow County NC Information


Onslow County Subdivisions

Onslow County NC Data & Demographics (As of July 1, 2023)


Total Population 211,839 (100%)
Population in Households 187,780 (88.6%)
Population in Families 157,779 (74.5%)
Population in Group Quarters1 24,059 (11.4%)
Population Density 278
Diversity Index2 65


Median Household Income $54,821
Average Household Income $80,833
% of Income for Mortgage4 23%
Per Capita Income $29,886
Wealth Index5 63
Socioeconomic Status Index6 Moderate (49.3)


Total HU (Housing Units) 89,273 (100%)
Owner Occupied HU 42,989 (48.2%)
Renter Occupied HU 30,052 (33.7%)
Vacant Housing Units 16,232 (18.2%)
Median Home Value $205,953
Average Home Value $239,021
Housing Affordability Index3 111


Total Households 73,041
Average Household Size 2.57
Family Households 52,231
Average Family Size 3.00
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.
  6. The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.


2020-2023 2023-2028
Population 1.08% 0.63%
Households 1.51% 1.00%
Families   0.94%
Median Household Income   1.79%
Per Capita Income   3.16%
Owner Occupied HU   1.54%


Onslow County NC - Peer Comparisons by Rank and Percentile

The table below compares Onslow County to the other 100 counties and county equivalents in North Carolina by rank and percentile using July 1, 2023 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 13 88th
Population Density # 21 80th
Median Household Income # 43 58th
Housing Affordability Index # 46 46th
Per Capita Income # 61 40th
Diversity Index # 29 73rd

Additional comparisons and rankings can be made with a VERY EASY TO USE North Carolina Census Data Comparison Tool.

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Compare North Carolina July 1, 2023 Data
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  4. See the References & Data Sources page for more information about methodology and sources of data.