Whiteside County, IL Demographics

The total population of Whiteside County is estimated to be 55,569 with 27,939 males (50.28%) and 27,630 females (49.72%). There are 309 less females than males in Whiteside County.
The median household income in Whiteside County was $64,652 in 2021, which marked an a decrease of 132(0.20%) from $64,784 in 2020. This income is 86.66% 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, Whiteside County sees its highest median household income among householders in the age group of 45 to 64 years old, at $80,315. Overall, the median household income for the county of Whiteside County stands at $64,652.
In Whiteside County, the median income for all workers aged 15 years and older, regardless of work hours, was $44,954 for males and $25,637 for females. However, when specifically considering full-time, year-round workers within the same age group, the median income was $59,003 for males and $43,343 for females.
In Whiteside County, the demographic landscape is diverse, spanning 6 distinct racial categories among households. Among these, White households have the highest median household income at $66,113, while Two or More Races households represent the opposite end with the lowest median household income of $21,332.
In 2022, the population of Whiteside County was 54,658, a 1.24% decrease year-by-year from 2021. Previously, in 2021, Whiteside County's population was 55,342, a decline of 0.38% compared to a population of 55,553 in 2020.
The median age in Whiteside County, IL is 43.6, as per 2021 ACS 5-Year Estimates. Of the total population, 18.22% were under the age of 15, 17.03% aged 15 to 29, 44.13% aged 30 to 64, 17.59% aged 65 to 84, and 3.02% were 85 years of age and older.
Racial distribution of Whiteside County population: 91.87% are White, 1.05% are Black or African American, 0.13% are American Indian and Alaska Native, 0.61% are Asian, 0.12% are Native Hawaiian and other Pacific Islander, 1.55% are some other race and 4.67% are multiracial.