LaSalle County, IL Demographics

The total population of LaSalle County is estimated to be 109,495 with 55,761 males (50.93%) and 53,734 females (49.07%). There are 2,027 less females than males in LaSalle County.
The median household income in LaSalle County was $67,908 in 2021, which marked an a decrease of 159(0.23%) from $68,067 in 2020. This income is 91.02% 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, LaSalle County sees its highest median household income among householders in the age group of 25 to 44 years old, at $79,997. Overall, the median household income for the county of LaSalle County stands at $63,626.
In LaSalle County, the median income for all workers aged 15 years and older, regardless of work hours, was $44,924 for males and $25,652 for females. However, when specifically considering full-time, year-round workers within the same age group, the median income was $63,234 for males and $43,437 for females.
In LaSalle County, the demographic landscape is diverse, spanning 5 distinct racial categories among households. Among these, Asian households have the highest median household income at $147,917, while Black or African American households represent the opposite end with the lowest median household income of $47,308.
In 2022, the population of LaSalle County was 108,078, a 0.97% decrease year-by-year from 2021. Previously, in 2021, LaSalle County's population was 109,139, a decline of 0.26% compared to a population of 109,421 in 2020.
The median age in LaSalle County, IL is 41.8, as per 2021 ACS 5-Year Estimates. Of the total population, 17.44% were under the age of 15, 18.10% aged 15 to 29, 45.65% aged 30 to 64, 16.18% aged 65 to 84, and 2.63% were 85 years of age and older.
Racial distribution of LaSalle County population: 89.46% are White, 2.73% are Black or African American, 0.03% are American Indian and Alaska Native, 0.95% are Asian, 0.02% are Native Hawaiian and other Pacific Islander, 3.16% are some other race and 3.65% are multiracial.