Lee County, IL Demographics

The total population of Lee County is estimated to be 34,221 with 18,205 males (53.20%) and 16,016 females (46.80%). There are 2,189 less females than males in Lee County.
The median household income in Lee County was $67,287 in 2021, which marked an a decrease of 686(1.01%) from $67,973 in 2020. This income is 90.19% 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, Lee County sees its highest median household income among householders in the age group of 45 to 64 years old, at $76,946. Overall, the median household income for the county of Lee County stands at $67,287.
In Lee County, the median income for all workers aged 15 years and older, regardless of work hours, was $46,541 for males and $27,354 for females. However, when specifically considering full-time, year-round workers within the same age group, the median income was $63,578 for males and $46,142 for females.
In Lee County, the demographic landscape is diverse, spanning 4 distinct racial categories among households. Among these, Two or More Races households have the highest median household income at $72,877, while American Indian and Alaska Native households represent the opposite end with the lowest median household income of $9,844.
In 2022, the population of Lee County was 33,848, a 0.93% decrease year-by-year from 2021. Previously, in 2021, Lee County's population was 34,166, an increase of 0.34% compared to a population of 34,051 in 2020.
The median age in Lee County, IL is 42.8, as per 2021 ACS 5-Year Estimates. Of the total population, 16.34% were under the age of 15, 17.31% aged 15 to 29, 46.66% aged 30 to 64, 16.86% aged 65 to 84, and 2.83% were 85 years of age and older.
Racial distribution of Lee County population: 89.02% are White, 5.39% are Black or African American, 0.04% are American Indian and Alaska Native, 0.70% are Asian, 0.03% are Native Hawaiian and other Pacific Islander, 1% are some other race and 3.82% are multiracial.