Illinois Population and Demographics
Are you tired of spending 10+ hours searching for demographic and population data for Illinois? We have all of the data you need by state, county, city, and zip code that will save you many hours of research!
In this article, we'll explore most of the 190+ data points we have for Illinois, covering popular demographics statistics like household income, race, age and gender, educational attainment, poverty, housing, and transportation.
The data on this page is from the 2021 American Community Survey (ACS) 5-Year survey from the US Census Bureau.
Richest Zip Codes in Illinois
In the table below, we've ranked the richest zip codes in Illinois based on the average (or mean) household income. To do this, we only look at zip codes that have a population of at least 500 people and a reasonable margin of error for the data.
If the margin of error for the mean income is greater than 50% of the estimate, we don't use it. This is to try and make the data less likely to be skewed by outliers with very small population areas or estimates that are not very accurate.
|Rank||ZIP Code||County||Mean Income|
|4||60521||Cook County, DuPage County||$330,731.00|
|11||60015||Cook County, Lake County||$219,717.00|
|16||60010||Cook County, Kane County, Lake County, McHenry County||$202,719.00|
|18||60564||DuPage County, Will County||$201,924.00|
|25||60184||DuPage County, Kane County||$183,559.00|
|33||60527||Cook County, DuPage County||$171,925.00|
|36||60126||Cook County, DuPage County||$170,422.00|
|37||60565||DuPage County, Will County||$170,331.00|
|40||60585||Kendall County, Will County||$165,315.00|
|41||61884||Champaign County, Piatt County||$164,698.00|
|46||60502||DuPage County, Kane County||$160,999.00|
|47||61011||Boone County, Winnebago County||$160,713.00|
|63||60089||Cook County, Lake County||$148,036.00|
|74||60439||Cook County, DuPage County, Will County||$141,592.00|
|75||60554||Kane County, Kendall County||$141,126.00|
|76||60423||Cook County, Will County||$140,452.00|
|77||62280||Jackson County, Randolph County||$139,502.00|
|79||60140||DeKalb County, Kane County||$138,310.00|
|83||60510||DuPage County, Kane County||$137,280.00|
|84||60013||Lake County, McHenry County||$136,269.00|
|88||62693||Logan County, Sangamon County||$134,863.00|
|97||60102||Kane County, McHenry County||$130,857.00|
|100||60081||Lake County, McHenry County||$129,689.00|
To view details demographics data for a specific zip code, click on the link in the table above. You can also read our article here on the richest zip codes in Illinois.
Richest Cities in Illinois
We can also find the same information for the richest cities in Illinois. The table below ranks the top 10 cities in Illinois by average household income by using the same criteria as we did with the zip codes.
|4||Hinsdale||Cook County, DuPage County||$340,370.00|
|6||New Trier||Cook County||$307,073.00|
|8||North Barrington||Lake County||$301,053.00|
|9||Barrington Hills||Cook County, Kane County, Lake County, McHenry County||$296,170.00|
To view details demographics data for a specific city, click on the link in the table above. You can also read our article here on the richest cities in Illinois.
Median Household Income
According to the latest ACS 5-year survey in 2020, the median household income in Illinois is $68,428.00.
The chart below shows the average household income by age in Illinois.
25 to 44$80,059.00
45 to 64$87,986.00
65 and over$51,237.00
Average Household Income
A very commonly asked question is "what is the average household income in Illinois?". The official term for the average household income is the mean household income. The mean household income is the total income of all households divided by the number of households.
The average (or mean) household income in Illinois is $95,115.00.
10.11% of households in Illinois are classed as high income households (making $200,000+ per year).
The difference between a median and an average income
The difference between a median and mean household income is that the median income is the middle point of the set of numbers whereas the mean income is an average of all numbers.
Both metrics are important when looking at the income statistics for Illinois but because the median value doesn't depend on other numbers in the dataset, it doesn't change as much when some of the values are extremely low or extremely high.
Household Income Tiers for Illinois
We can also look at the household income tiers. This lets you see how many households fall into each of the earnings brackets and what percentage that bracket is of the total number of households.
The chart below shows the household income brackets to see which age groups have the highest median income. The actual data is more granular than these brackets, but we've simplified them into bigger categories to make reviewing the data for Illinois easier to view.
You can purchase the raw data above, which will have the full income tiers with smaller jumps in household income.
Less than $24,99916.80%
$25,000 to $49,99918.42%
$50,000 to $74,99916.26%
$75,000 to $99,99912.86%
$100,000 to $149,99917.06%
$150,000 to $199,9998.49%
$200,000 or more10.11%
Per Capita Income
The per capita income is the average income of all people in Illinois. This is calculated by dividing the total income of all people in Illinois by the total number of people in Illinois.
It differs from the average or mean household income because it includes all people in Illinois and not just the people who earn an income (i.e. children, retirees, unemployed, etc.).
The per capita income in Illinois is $37,306.00.
Population in Illinois by Race and Ethnicity
The total population in Illinois is currently 12,716,164 people.
The race and ethnicity of the population in Illinois can be very important for social research, economics, and marketing to a multi-culturial society.
Whether you want to target products or services to a particular race or ethnicity, or provide housing and new businesses to improve areas with a larger ethnic minority population, this data is very valuable for discovering suitable areas.
The chart below breaks down the population and percentage for each race and ethnicity in Illinois.
13.80% Black/African American1,773,138
0.00% Hawaiian/Pacific Islander3,048
2.40% Two or more races310,790
Population of Illinois by Age and Gender
Another very important demographics statistic for Illinois is the age and gender of the population. The age and gender of the population can be used to track trends in population growth or decline, and for businesses, the data can be used to identify people important to you and your business need.
In the table below, we show age groups at a 10 year granularity for ease of use. The raw data, which can be purchased above, includes age and gender at a 5 year granularity.
|0 to 9 Years||779,153||747,862|
|10 to 19 Years||868,228||828,231|
|20 to 29 Years||865,846||848,102|
|30 to 39 Years||873,953||860,629|
|40 to 49 Years||815,873||810,432|
|50 to 59 Years||843,715||853,154|
|60 to 69 Years||714,151||771,245|
|70 Years and over||571,257||769,982|
Educational attainment is a very useful statistic that can give insights into other data such as the average household income, unemployment levels, and literacy.
What this means is that it is likely for areas that have higher levels of education to have higher average household incomes, lower unemployment rates, and higher literacy rates.
The chart below shows the educational attainment of the population in Illinois.
Master's degree or higher16.77%
Some college or associate's degree10.64%
High school diploma or equivalent34.82%
Less than high school diploma2.94%
The unemployment rate is the percentage of the population that is actively looking for work but is unable to find a job. The unemployment rate is a very important statistic for Illinois because it can show how many people are actively looking for work and how many people are unable to find a job.
Lower levels of unemployment is generally seen as a positive sign for the economy. It also makes the government in Illinois look good because it shows that they are doing a good job of creating jobs, working to capacity, being efficient, and keeping the economy strong.
The unemployment rate is calculated using the total population in Illinois that are over the age of 16.
The current population in Illinois that are over the age of 16 is 10,275,978 people.
The unemployment rate in Illinois is 34.70%, which means 3,570,794 people are unemployed.
Median Age in Illinois
The median age is an interesting metric because it gives us an idea of the age distribution of people in Illinois. You know when you see a median age that it is the age where half of the population is older and half is younger than it.
For demographic studies, this can be used to infer and compare date to things such as birth rates, the age of parents, and so on.
An increasing median age can be a sign of an aging population, which can be a sign of a declining population. This is because older people tend to have fewer children and die more often than younger people.
The median age in Illinois is 38.5 years old.
We can also look at the median age by gender to compare the see how each group compares to the total median age:
Median age by gender in Illinois
Households and Families
There are a total of 4,930,255 households in Illinois, and the average household size is 2.54 people.
For families, the total number is 3,131,678, and the average family size is 3.21 people.
8.30% of those families in Illinois are living below the poverty line.
The table below shows the poverty thresholds for Illinois in 2022.
|Household Size||Poverty Threshold|
Please note that the poverty thresholds shown above are from 2022, while the latest demographics data we have is from 2020.
Households and Families by Marital Status
There are four types of household and family, as defined by the Census Bureau:
- Male householder, no spouse present
- Female householder, no spouse present
- Nonfamily household
In the table below, you can see the total households and families in Illinois for each type, as well as the average sizes.
|Average Household Size||3.26||3.34||3.4||1.24|
|Average Household Size||3.24||2.96||3.2||0|
Housing Data in Illinois
There are total of 5,412,995 housing units in Illinois. Of those units, 4,930,255 (91.08%) are occupied, and 482,740 (8.92%) are vacant.
Of the 5,412,995 housing units in Illinois, 1,581,403 (29.21%) are occupied by renters. The median rent paid by renters is $1,097.00.
Owner occupied housing units make up the remaining 60.58% of housing units, with 3,279,322 housing units in total.
The table below breaks down how much rent is paid by renters in Illinois.
No rent paid69,530
Less than $500144,444
$500 to $999527,003
$1,000 to $1,499503,717
$1,500 to $1,999238,426
$2,000 to $2,49996,808
$2,500 to $2,99937,527
$3,000 or more33,478
The median value of a property in Illinois is $212,600.00.
The table below breaks down the range of valuations for all properties in Illinois.
Less than $50,000192,095
$50,000 to $99,999403,882
$100,000 to $149,999444,981
$150,000 to $199,999496,767
$200,000 to $299,999747,742
$300,000 to $499,999663,366
$500,000 to $999,999268,376
$1,000,000 or more62,113
We can also look at the number of properties built in a given year to see the spread of property age in Illinois.
1939 or earlier1,129,822
1940 to 1949325,189
1950 to 1959673,676
1960 to 1969620,401
1970 to 1979779,081
1980 to 1989492,147
1990 to 1999600,485
2000 to 2009589,438
2010 to 2013199,030
2014 or later3,726
Vehicles Available per Household
Finally, we have data on how many vehicles each household in Illinois has. The table below breaks down the number of vehicles available per household.
No vehicles available526,288
1 vehicle available1,713,317
2 vehicles available1,771,976
3 or more vehicles available918,674
Commuting to Work in Illinois
The time and means of commuting to work are useful metrics to look at because they can be correlated against other data such as income and education level.
Does a longer commuting time indicate a higher average income? If so, has the huge increase in home working during the pandemic changed this?
Using these metrics, we can get a better understanding of the demographics of Illinois, how they commute, and how that correlates to other data points.
The average travel time is 28.7 minutes, and the chart below covers the range of travel times across the population of Illinois.
Less than 5 minutes160,342
5 to 9 minutes504,531
10 to 14 minutes662,974
15 to 19 minutes728,062
20 to 24 minutes696,113
25 to 29 minutes358,602
30 to 34 minutes782,166
35 to 39 minutes201,647
40 to 44 minutes269,362
45 to 59 minutes579,456
60 to 89 minutes455,818
90 or more minutes154,991
We can also look at the means of transport in Illinois to see which modes of transport people are using to commute to work.
Worked from home610,604
Hopefully this article has given you the demographics data you were looking for in Illinois.
If you need more demographics data, or you need the data listed above in spreadsheet form with more granular grouping, head back to the top of this page where you can purchase the complete demographics data for Illinois.
Link To or Reference This Page
We spent a lot of time downloading, cleaning, merging, and formatting the data that is shown on the site.
If you found the data or information on this page useful in your research, please use the tool below to properly cite or reference Name Census as the source. We appreciate your support!
"Illinois Population and Demographics". NameCensus.com. Accessed on February 1, 2023. https://namecensus.com/demographics/illinois/.
"Illinois Population and Demographics". NameCensus.com, https://namecensus.com/demographics/illinois/. Accessed 1 February, 2023
Illinois Population and Demographics. NameCensus.com. Retrieved from https://namecensus.com/demographics/illinois/.