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Johnson County, IN
11 cities and towns and 6 ZIP codes in Johnson County, Indiana.
Population
166,315
Land area
320sq mi
People per sq mi
519
ZIP codes
6
Cities and towns in Johnson County
Johnson County at a glance
- Johnson County is about 2.7 times as dense as Indiana as a whole.
- By population, it ranks 11th among 92 counties in Indiana.
- The median household income is $90,454, 26% above the Indiana median of $71,957.
- A typical owner-occupied home is valued at $284,600 (30% above Indiana) and median rent is $1,271 a month.
- Its largest cities are Greenwood (66,029), Franklin (26,168) and Bargersville (10,752).
Local data for Johnson County, IN
Counts from official public data
- Hospitals3
- Emergency Rooms1
- Nursing Homes10
- Schools48
- Colleges1
- Libraries8
- Banks48
- Post Offices9
- Parks63
- Grocery Stores38
- Restaurants423
- Affordable Housing3
- Home Health Agencies5
- Hospice Care2
- Dialysis Centers3
- Rehab & Long-Term Care Hospitals1
- Community Health Centers4
- Mental Health & Addiction Treatment9
- Private Schools8
- Toxic Release Facilities11
- Historic Places11
Housing and community stats
Johnson County, IN, American Community Survey 2020-2024
Median household income
$90,454
Poverty rate
7.4%
Median home value
$284,600
Prices +4.8% in a year
Median rent
$1,271/mo
Homeownership
72.7%
Bachelor's or higher
34.7%
Median age
38.0
Average commute
26.4 min
Largest reported origins and ancestries: German Americans (29,486), Irish Americans (16,878), Indian Americans (5,198).
Economy and federal money
Jobs, income, federal spending and pandemic loans
Unemployment rate
3.1%
Aug 2026, -0.2 pts in a year
Average annual pay
$52,378
66,474 jobs, 2025
Income per person
$64,637
BEA, 2024
Federal spending
$966M
FY 2026, $5,972 per person
PPP loans
$229M
3,506 loans, 29,431 jobs reported
Campaign donations
$636K
Itemized, 2026 cycle
How people get to work
Johnson County, IN, workers 16 and older. American Community Survey 5-year estimates
- Drove alone76.5%
- Carpooled7.0%
- Public transit0.2%
- Walked0.9%
- Bicycle0.1%
- Taxi, ride-hailing, motorcycle or other1.2%
- Worked from home14.2%
Average one-way commute: 26.4 minutes for people who do not work from home.
Environment and hazard risk
Johnson County, IN, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Low
Top: strong wind
Storm events since 1996
448
Most often thunderstorm wind
Flood insurance policies
360
0.7% of homes, county
July high / Jan low
84° / 18°F
45.4 inches of rain a year
Hazards, floods and storm historyCheck a flood zone11 historic places
Health statistics
Share of adults in Johnson County, IN, CDC PLACES estimates
Obesity
38.8%
U.S. 33.3% +5.5 pts
Diabetes
11.9%
U.S. 12.1% about the same
Smoking
14.1%
U.S. 12.8% +1.3 pts
Uninsured (18-64)
7.1%
U.S. 11.1% -4.0 pts
Cities, towns and ZIP codes in Johnson County
Population shown
Frequently asked questions
- What is the largest city in Johnson County, IN?
- Greenwood is the largest city or town in Johnson County, with about 66,029 residents.
- How many ZIP codes are in Johnson County?
- Johnson County includes 6 ZIP Code Tabulation Areas, including 46106, 46131, 46142, 46143, 46181.
- What is the population of Johnson County, IN?
- About 166,315 people live in Johnson County, based on American Community Survey 5-year estimates.
- What counties border Johnson County?
- Johnson County borders Marion County, Bartholomew County, Morgan County, Shelby County, Brown County.
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023