Onslow County Population

1790–2026

219.68K

2026 projection

7.2% since 2020 (increase)

050K100K150K200K250K18001850190019502000

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Onslow County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
2026219,678+2,5031.15%
2025217,175+2,5031.17%
2024214,672+3,7171.76%
2023210,955+4,2732.07%
2022206,682+3,1701.56%
2021203,512-1,4720.72%
2020204,984+2,1891.08%
2019202,795+5,7262.91%
2018197,069+1,7370.89%
2017195,332+2,5871.34%

Showing 10 of 38 years.

Onslow County Demographics

27.7median age

Median age

Female31.4 yrs
Male25 yrs

Adults

156,392
21,189 seniors (65+) · 14% of adults135,203 other adults

Sex

Female 44.9% · 93,429Male 55.1% · 114,477

Population by age

MaleFemale85+ years, male: 81585+ years, female: 95180–84 years, male: 1,04980–84 years, female: 1,25175–79 years, male: 1,53975–79 years, female: 2,41470–74 years, male: 2,12870–74 years, female: 2,56565–69 years, male: 4,01965–69 years, female: 4,45860–64 years, male: 4,03560–64 years, female: 4,85955–59 years, male: 3,93055–59 years, female: 4,20150–54 years, male: 3,82450–54 years, female: 4,17845–49 years, male: 4,21345–49 years, female: 4,20940–44 years, male: 5,42040–44 years, female: 5,69135–39 years, male: 7,02835–39 years, female: 6,46830–34 years, male: 8,54930–34 years, female: 7,82125–29 years, male: 10,47225–29 years, female: 8,23320–24 years, male: 24,03220–24 years, female: 8,96615–19 years, male: 10,75515–19 years, female: 5,40510–14 years, male: 6,87110–14 years, female: 6,7805–9 years, male: 7,2565–9 years, female: 6,8260–4 years, male: 8,5420–4 years, female: 8,15385+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–410K10K20K20K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 2,079 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Onslow County Income

$68,148median household income

Median household income

$68,148

Half of households earn more, half earn less

Median earnings

$47,145

Typical yearly pay for a worker 25 or older.

Poverty rate

11.6%

About 1 in 9 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Onslow County Marital Status

54% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married54%50%59%
Never married31%40%20%
Divorced9%7%12%
Widowed4%2%7%
Separated2%2%3%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201

Sources

8 sources, all from the U.S. Census Bureau

Population

American Community Survey, 2024 5-year