Johnson County, Indiana Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 11th-largest in Indiana
The population of Johnson County, Indiana is 163,983 as of the 2023 American Community Survey, making it the 11th-largest county in Indiana. The median household income is $87,227, the median home value is $260,400, and the median age is 38.1.
The population of Johnson County has grown 21.6% since 2010 (140,269 → 170,614), a +1.41% annualized rate.
163,983
Population
+1.41%
Annual growth
512
People / sq mi
$87,227
Median Income
$260,400
Median Home Value
Johnson County covers 320 sq mi of land at 511.8 people per square mile.
About Johnson County, IN
Among US counties, Johnson County stands out first on household income: a median of $87,227, above the US median of $78,538. Johnson County is a county in Indiana with a population of 163,983. It ranks #11 among counties in Indiana by population.
Earnings sit at the high end: a median household income of $87,227, above the US median of $78,538. The poverty rate, 5.4%, is on the lower side for US counties and below the national 12.4%. Home values run above average at $260,400, with typical rent around $1,208.
Educational attainment is on the higher side for US counties — 33.3% of adults hold a four-year degree, near the national 35.0%. About 13.4% of workers primarily work from home, close to the national 14.0%, and the average commute runs about 26 minutes each way.
Taken together, the income and housing figures place Johnson County firmly in the higher-cost, higher-earning tier of US counties — a profile that tends to track dense job markets and competitive housing.
Johnson County Population History (2010-2024)
The county of Johnson County had a population of 140,269 in 2010 and 170,614 in 2024, a 21.6% growth over 14 years. The peak was 170,614 in 2024. Average annual growth rate: 1.41%.
170,614
Population (2024)
140,269
Population (2010)
170,614
Peak (2024)
1.41%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 140,269 |
| 2011 | 141,747 |
| 2012 | 143,502 |
| 2013 | 145,448 |
| 2014 | 147,129 |
| 2015 | 149,021 |
| 2016 | 151,621 |
| 2017 | 153,879 |
| 2018 | 156,301 |
| 2019 | 158,332 |
| 2020 | 162,263 |
| 2021 | 164,440 |
| 2022 | 165,951 |
| 2023 | 168,305 |
| 2024 | 170,614 |
Race & Ethnicity
| White | 86.2% |
| Black or African American | 3.1% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.8% |
| Two or More Races | 0.0% |
Age & Sex
38.1
Median Age
50.5%
Female
49.5%
Male
15.4%
Age 65+
Age Distribution
Children (under 15): 20.2% · Seniors (65+): 15.4%
Income & Poverty
| Median household income | $87,227+$17,176 vs state |
| Mean household income | $111,087 |
| Per-capita income | $42,884 |
| Poverty rate | 5.4%-3.0% vs state |
| Unemployment rate | 2.0% |
| Employment-to-population | 64.2% |
Top Industries by Employment
The largest employment sector in Johnson County is professional & business services, accounting for 24.5% of workers.
How residents commute
0.2%
Drive alone
0.8%
Carpool
77.5%
Public transit
13.4%
Work from home
26.2 min
Avg commute
Housing
$260,400+$58,800 vs state
Median home value
$1,208
Median rent
73.9%
Homeownership rate
64,800
Total housing units
94.9%
Occupied
5.1%
Vacant
26.1%
Renter-occupied
Social & access
95.2%
With health insurance
95.6%
With broadband internet
23.5%
Foreign-born
6.2%
Veterans (18+)
11.3%
With a disability
92.3%
Speak language other than English at home
Education
92.7%
High School+
33.3%
Bachelor's+
Largest cities in Indiana
Other counties in Indiana
Part of Indiana
Metro areas in Indiana
County rankings
Frequently Asked Questions
Johnson County, Indiana has a population of 163,983 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 11th-largest county in Indiana. Population density is 512 people per square mile.
The population of Johnson County has grown 21.6% since 2010 (140,269 → 170,614), a +1.41% annualized rate.
The median household income in Johnson County, Indiana is $87,227, with mean (average) household income of $111,087 and per-capita income of $42,884. 5.4% of residents live below the federal poverty level.
In Johnson County, the largest racial and ethnic groups are White (86.2%), Black or African American (3.1%), Hispanic or Latino (0.8%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Johnson County, Indiana is 38.1 years. Residents are 50.5% female and 49.5% male.
The median home value in Johnson County is $260,400 and median monthly rent is $1,208. 73.9% of occupied housing units are owner-occupied. The county has 64,800 total housing units, 5.1% of which are vacant.
The largest employment sector in Johnson County, Indiana is professional, scientific, and management services, employing 24.5% of workers. The unemployment rate is 2.0%.
Indianapolis is among the largest cities associated with Johnson County, Indiana, with a population of 882,043.
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Statewide data for Indiana
Population, race, income, age, and trends across Indiana
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.