Johnson County Population

1860–2026

9,402

2026 projection

2.4% since 2020 (increase)

02K4K6K8K10K12K14K186018801900192019401960198020002020

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 Johnson County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
20269,402+920.99%
20259,310+921.00%
20249,218-920.99%
20239,310+610.66%
20229,249+2552.84%
20218,994-1862.03%
20209,180-5445.59%
20199,724-430.44%
20189,767+170.17%
20179,750+710.73%

Showing 10 of 31 years.

Johnson County Demographics

43.7median age

Median age

Female47.6 yrs
Male42.2 yrs

Adults

7,557
1,867 seniors (65+) · 25% of adults5,690 other adults

Sex

Female 40% · 3,674Male 60% · 5,516

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 92 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

Johnson County Income

$51,028median household income

Median household income

$51,028

Half of households earn more, half earn less

Median earnings

$38,412

Typical yearly pay for a worker 25 or older.

Poverty rate

24.2%

About 1 in 4 residents

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

Johnson County Marital Status

37% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married37%34%41%
Never married35%43%24%
Divorced15%15%16%
Widowed9%4%16%
Separated3%4%3%

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