Johnston County Population

1790–2026

263.37K

2026 projection

21.1% since 2020 (increase)

050K100K150K200K250K300K18001850190019502000

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 Johnston County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
2026263,374+6,9262.70%
2025256,448+6,9262.78%
2024249,522+7,5123.10%
2023242,010+7,3433.13%
2022234,667+7,7023.39%
2021226,965+9,5154.38%
2020217,450+7,6643.65%
2019209,786+6,7553.33%
2018203,031+6,4903.30%
2017196,541+5,6042.93%

Showing 10 of 38 years.

Johnston County Demographics

38.1median age

Median age

Female38.7 yrs
Male37.4 yrs

Adults

175,927
32,148 seniors (65+) · 18% of adults143,779 other adults

Sex

Female 50.8% · 119,036Male 49.2% · 115,227

Population by age

MaleFemale85+ years, male: 1,06085+ years, female: 1,88780–84 years, male: 1,35080–84 years, female: 2,05275–79 years, male: 2,52575–79 years, female: 2,97770–74 years, male: 4,03070–74 years, female: 5,40865–69 years, male: 5,25065–69 years, female: 5,60960–64 years, male: 6,62360–64 years, female: 7,47655–59 years, male: 7,89855–59 years, female: 7,26150–54 years, male: 8,37450–54 years, female: 8,60645–49 years, male: 8,00445–49 years, female: 8,06440–44 years, male: 8,69340–44 years, female: 7,69035–39 years, male: 7,31835–39 years, female: 8,89130–34 years, male: 7,81130–34 years, female: 8,25425–29 years, male: 6,87325–29 years, female: 7,00120–24 years, male: 6,88920–24 years, female: 6,48815–19 years, male: 8,46415–19 years, female: 7,90510–14 years, male: 8,85210–14 years, female: 9,1365–9 years, male: 7,9635–9 years, female: 7,3030–4 years, male: 7,2500–4 years, female: 7,02885+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–42K2K4K4K6K6K8K8K

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 2,343 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

Johnston County Income

$83,384median household income

Median household income

$83,384

Half of households earn more, half earn less

Median earnings

$53,562

Typical yearly pay for a worker 25 or older.

Poverty rate

10.6%

About 1 in 9 residents

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

Johnston County Marital Status

55% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married55%57%52%
Never married29%31%27%
Divorced10%8%11%
Widowed5%2%8%
Separated2%2%2%

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