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The total population of Williamson County is estimated to be 248,897 with 123,066 males (49.44%) and 125,831 females (50.56%). There are 2,765 more females than males in Williamson County.
The median household income in Williamson County was $125,918 in 2021, which marked an a decrease of 83(0.07%) from $126,001 in 2020. This income is 168.78% 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, Williamson County sees its highest median household income among householders in the age group of 45 to 64 years old, at $158,126. Overall, the median household income for the county of Williamson County stands at $129,275.
In Williamson County, the median income for all workers aged 15 years and older, regardless of work hours, was $78,056 for males and $40,055 for females. However, when specifically considering full-time, year-round workers within the same age group, the median income was $106,711 for males and $70,193 for females.
In Williamson County, the demographic landscape is diverse, spanning 5 distinct racial categories among households. Among these, Asian households have the highest median household income at $180,023, while Some Other Race households represent the opposite end with the lowest median household income of $78,257.
In 2022, the population of Williamson County was 260,815, a 1.80% increase year-by-year from 2021. Previously, in 2021, Williamson County's population was 256,209, an increase of 2.67% compared to a population of 249,538 in 2020.
The median age in Williamson County, TN is 39.5, as per 2021 ACS 5-Year Estimates. Of the total population, 21.71% were under the age of 15, 17.17% aged 15 to 29, 47.82% aged 30 to 64, 12.20% aged 65 to 84, and 1.10% were 85 years of age and older.
Racial distribution of Williamson County population: 85.81% are White, 4.04% are Black or African American, 0.20% are American Indian and Alaska Native, 4.91% are Asian, 0.03% are Native Hawaiian and other Pacific Islander, 1.02% are some other race and 4% are multiracial.