Johnston Population

1970–2026

25,303

2026 projection

5.5% since 2020 (increase)

05K10K15K20K25K30K197019801990200020102020

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. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202625,303+2380.95%
202525,065+1270.51%
202424,938+4041.65%
202324,534+3561.47%
202224,178+920.38%
202124,086+1020.43%
202023,984+1,3966.18%
201922,588+5492.49%
201822,039+4942.29%
201721,545+4452.11%

Showing 10 of 21 years.

Johnston Demographics

37.4median age

Median age

Female37.3 yrs
Male37.5 yrs

Adults

16,957
3,741 seniors · 22%13,216 other adults

Sex

Female 51.6% · 12,580Male 48.4% · 11,804

Population by age

MaleFemale85+ years, male: 27485+ years, female: 20180–84 years, male: 6280–84 years, female: 39975–79 years, male: 15975–79 years, female: 26170–74 years, male: 46070–74 years, female: 59765–69 years, male: 48665–69 years, female: 84260–64 years, male: 51960–64 years, female: 40355–59 years, male: 68955–59 years, female: 64250–54 years, male: 90550–54 years, female: 89645–49 years, male: 96645–49 years, female: 86840–44 years, male: 83140–44 years, female: 67235–39 years, male: 97035–39 years, female: 91630–34 years, male: 39830–34 years, female: 83225–29 years, male: 52325–29 years, female: 66020–24 years, male: 52920–24 years, female: 58115–19 years, male: 62715–19 years, female: 1,01710–14 years, male: 1,47810–14 years, female: 1,2505–9 years, male: 1,2025–9 years, female: 8770–4 years, male: 7260–4 years, female: 66685+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–45005001K1K

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 244 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 Income

$106,551median household income

Median household income

$106,551

Half of households earn more, half earn less

Median earnings

$76,986

Typical yearly pay for a worker 25 or older.

Poverty rate

10.2%

About 1 in 10 residents

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

Johnston Marital Status

61% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married61%68%54%
Never married26%25%27%
Divorced8%6%10%
Widowed5%2%8%
Separated<1%<1%1%

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

Sources

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

Population

American Community Survey, 2024 5-year