Johnson County's estimated 2026 population is 175,232 with a growth rate of 1.34% in the past year according to the most recent United States census data. Johnson County is the 11th largest county in Indiana. The 2010 population was 140,269 and has seen a growth of 24.93% since that time.
Data after 2023 is projected based on recent change
The racial composition of Johnson County includes 86.16% White, 4.71% Asian, 3.06% Black or African American, and smaller percentages for other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
White (86.16%)
Asian (4.71%)
Two or more races (4.5%)
Black or African American (3.06%)
Other race (1.44%)
Native American (0.11%)
Native Hawaiian or Pacific Islander (0.03%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 141,281 | 86.16% |
| Asian | 7,724 | 4.71% |
| Two or more races | 7,372 | 4.5% |
| Black or African American | 5,014 | 3.06% |
| Other race | 2,367 | 1.44% |
| Native American | 176 | 0.11% |
| Native Hawaiian or Pacific Islander | 49 | 0.03% |
Married
Widowed
Divorced
Separated
Never Married
Johnson County's average per capita income is $54,166. Household income levels show a median of $87,227. The poverty rate stands at 7.23%.
Name | Median | Mean |
|---|---|---|
| Married Families | $117,268 | $143,200 |
| Families | $102,458 | $129,434 |
| Households | $87,227 | $111,087 |
| Non Families | $46,693 | $62,220 |
Average Income
Median Household Income
Poverty Rate
