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The total population of Jefferson County is estimated to be 18,387 with 9,299 males (50.57%) and 9,088 females (49.43%). There are 211 less females than males in Jefferson County.
The median household income in Jefferson County was $78,118 in 2021, which marked an an increase of 1,711(2.24%) from $76,407 in 2020. This income is 104.71% 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, Jefferson County sees its highest median household income among householders in the age group of 45 to 64 years old, at $96,880. Overall, the median household income for the county of Jefferson County stands at $78,118.
In Jefferson County, the median income for all workers aged 15 years and older, regardless of work hours, was $49,472 for males and $34,350 for females. However, when specifically considering full-time, year-round workers within the same age group, the median income was $62,750 for males and $53,613 for females.
In Jefferson County, there are just three different racial groups among households. Among these, White households report a median household income of $78,708, followed by American Indian and Alaska Native households at $76,414, and Two or More Races households with a median household income of $64,584.
In 2022, the population of Jefferson County was 18,344, a 0.41% decrease year-by-year from 2021. Previously, in 2021, Jefferson County's population was 18,419, an increase of 0.54% compared to a population of 18,320 in 2020.
The median age in Jefferson County, KS is 43.7, as per 2021 ACS 5-Year Estimates. Of the total population, 18.29% were under the age of 15, 16.06% aged 15 to 29, 46.94% aged 30 to 64, 16.70% aged 65 to 84, and 2.01% were 85 years of age and older.
Racial distribution of Jefferson County population: 94.68% are White, 0.72% are Black or African American, 0.49% are American Indian and Alaska Native, 0.12% are Asian, 0.45% are some other race and 3.53% are multiracial.