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The total population of Johnson County is estimated to be 610,742 with 302,382 males (49.51%) and 308,360 females (50.49%). There are 5,978 more females than males in Johnson County.
The median household income in Johnson County was $103,831 in 2021, which marked an a decrease of 21(0.02%) from $103,852 in 2020. This income is 139.17% of the U.S. median household income of $74,606 (all incomes in 2022 inflation-adjusted dollars).
Per the latest American Community Survey by the Census Bureau, Johnson County sees its highest median household income among householders in the age group of 45 to 64 years old, at $117,266. Overall, the median household income for the county of Johnson County stands at $98,523.
In Johnson County, the median income for all workers aged 15 years and older, regardless of work hours, was $61,921 for males and $41,880 for females. However, when specifically considering full-time, year-round workers within the same age group, the median income was $78,464 for males and $64,187 for females.
In Johnson County, the demographic landscape is diverse, spanning 6 distinct racial categories among households. Among these, Asian households have the highest median household income at $122,252, while Black or African American households represent the opposite end with the lowest median household income of $68,340.
In 2022, the population of Johnson County was 619,195, a 0.71% increase year-by-year from 2021. Previously, in 2021, Johnson County's population was 614,848, an increase of 0.61% compared to a population of 611,101 in 2020.
The median age in Johnson County, KS is 37.9, as per 2021 ACS 5-Year Estimates. Of the total population, 19.96% were under the age of 15, 18.83% aged 15 to 29, 46.58% aged 30 to 64, 12.76% aged 65 to 84, and 1.87% were 85 years of age and older.
Racial distribution of Johnson County population: 83.36% are White, 4.82% are Black or African American, 0.23% are American Indian and Alaska Native, 5.33% are Asian, 0.03% are Native Hawaiian and other Pacific Islander, 1.59% are some other race and 4.64% are multiracial.