Johnson County, Indiana Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Johnson County, IN Population Density Map and Area Scores
Area Score
Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.
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B
Health Around averageHealthier than 93% of counties in Indiana
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B
Income Around averageWealthier than 95% of counties in Indiana
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C
Education Below averageBetter educated than 93% of counties in Indiana
Source: Map AI Methodology
Population: density and quick facts
| Metric | Johnson County | Indiana Avg | U.S. Average |
|---|---|---|---|
| Population | 166,315 | 6,845,048 | 337,468,954 |
| Population density (per sq mi) | 517.2 | 188.1 | 86.4 |
| Population growth (%/yr) | 1.51% | 0.47% | 0.59% |
| Median age | 35.8 | 35.9 | 37.3 |
| Households | 62,554 | 2,713,821 | 130,235,071 |
Population in Johnson County grew by 22.2% from 2009 to 2024, reaching 166,315 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Johnson County is Millennials, aged 29–44, at 22.7% of residents. That is 1.6 points above Indiana as a whole.
- Gen Z 13–28 35,175 21.1% -1.1 pts
- Millennials 29–44 37,827 22.7% +1.6 pts
- Gen X 45–60 33,988 20.4% +0.9 pts
- Boomers 61–79 25,235 15.2% -1.6 pts
Residents by birth cohort, from the 2025 age distribution. The right-hand figure is how far each cohort's share sits above or below Indiana, in percentage points. Children younger than Gen Z and the generations before the Boomers are counted in the population but not shown here, so these shares do not add up to 100%.
Male and female share
Women are 50.9% of the people living in Johnson County and men 49.1%.
- Women 50.9% Indiana 50.4%
- Men 49.1% Indiana 49.6%
How many residents match a customer profile?
Residents matching this profile
100% of everyone living in Johnson County
Pick an age range and a women/men split and the figure above answers with how many residents that profile reaches.
Economy
Johnson County has a the economy index of B, which means it is quite prosperous.
| Metric | Johnson County | Indiana Avg | U.S. Average |
|---|---|---|---|
| Median household income | $90,779 | $71,967 | $80,455 |
| Income growth (%/yr) | 4.60% | 4.54% | 4.80% |
| Unemployment rate | 3.0% | 4.3% | 5.2% |
The median household income in Johnson County is about 26% higher than in Indiana.
Housing
| Metric | Johnson County | Indiana Avg | U.S. Average |
|---|---|---|---|
| Median home price | $161,827 | $142,738 | $248,835 |
| Median rent | $1,271 | $1,062 | $1,407 |
| Homeownership rate | 72.7% | 70.6% | 65.2% |
The median home price in Johnson County is about 10.6 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $1,271 per month for that long.
Commute Time & Mobility
Commuters in Johnson County spend about 47 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 196 hours, about 8.2 full days, spent commuting.
| Metric | Johnson County | Indiana Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 23.5 | 21.1 | 22.4 |
| Round-trip commute (min) | 47.0 | 42.2 | 44.8 |
| Yearly time spent (hours) | 196 | 176 | 187 |
| Estimated yearly cost | $6,075 | $5,455 | $5,790 |
| Work from home | 14.2% | 10.7% | 15.0% |
| Highway traffic (vehicles/day) | 10,672 | 8,333 | 8,813 |
| Local road traffic (vehicles/day) | 1,834 | 1,308 | 1,355 |
Fastest commutes among counties in
Indiana:
Knox County (15.8 min), Howard County (15.9 min), Daviess County (16.3 min).
Slowest:
Crawford County (33.6 min), Brown County (32.6 min), Franklin County (31.9 min).
The average commute time in Johnson County is 24 minutes, longer than the 21 minutes in Indiana.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
Johnson County has a education index of C, which means it is somewhat educated.
| Metric | Johnson County | Indiana Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 30.3% | 26.0% | 31.6% |
| Average household size | 2.61 | 2.45 | 2.53 |
Highest education index among counties in
Indiana:
Hamilton County (0.4), Boone County (0.4), Monroe County (0.3).
Lowest:
LaGrange County (0.1), Crawford County (0.2), Switzerland County (0.2).
Health
Johnson County has a health index of B, which means it is quite healthy.
| Metric | Johnson County | Indiana Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 77.5 | 77.4 | 78.3 |
| Self-rated poor health | 13.6% | 17.1% | 16.3% |
| Smokers | 19.3% | 22.4% | 19.0% |
Highest health index among counties in
Indiana:
Hamilton County (0.8), Monroe County (0.8), Boone County (0.8).
Lowest:
LaGrange County (0.8), Daviess County (0.8), Switzerland County (0.8).
Johnson County, IN Compared With Nearby Counties
Johnson County, IN is the 2nd largest of the 5 counties compared here, 166,315 residents against a local median of 78,097. The measure that sets Johnson County, IN apart most is median household income: $90,779, 20% above the local median of $75,927. That is the better end of the local range on this measure.
The counties themselves spread $14,395 on median household income, so Johnson County, IN sits at one end of an already wide local range rather than apart from it. Johnson County, IN has the highest median household income of the 5 areas compared here.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Johnson County, IN | 166,315 | $90,779 #1/5 | $161,827 #3/5 | 23.5 min #4/5 |
| Marion County, IN | 971,946 | $66,629 | $146,421 | 22.5 min |
| Shelby County, IN | 45,265 | $72,014 | $171,773 | 21.3 min |
| Morgan County, IN | 72,659 | $81,024 | $169,852 | 30.4 min |
| Bartholomew County, IN | 83,536 | $79,839 | $148,683 | 17.6 min |
Frequently Asked Questions
Common questions about Johnson County, Indiana.
How many people live in Johnson County, Indiana?
About 166,315 people live in Johnson County, Indiana, in 62,554 households of 2.6 people on average. The median age is 35.8, so residents are younger than the U.S. median of 37.3 by about 2 years.
Is Johnson County, Indiana mostly urban or rural?
Averaged over its land area, Johnson County, Indiana has 517 people per square mile, a density typical of a mix of suburbs, small towns and farmland. That is about 6.0 times the U.S. average of 86.
Is Johnson County, Indiana an affordable place to live?
The median home costs 1.8 times the median household income ($161,827 against $90,779), compared with 3.1 times nationally. That is within the traditional rule of thumb of about 3 times income. Median rent of $1,271 a month takes about 17% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
How strong is the job market in Johnson County, Indiana?
Unemployment in Johnson County, Indiana is only 3.0%, well below the U.S. rate of 5.2%, a sign of a tight labor market where employers compete for workers.
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