Warren County, Illinois Population and Demographics

In this article, we'll explore the population statistics for Warren County, Illinois, including popular demographics data like median age, number of households, household income, gender, employment and unemployment rates, occupations, religion, and more.

We are using the latest American Community Survey (ACS) 5-Year survey data from the US Census Bureau, which is accurate up to 2021.

Table of Contents

Population

There is a lot of data that lets us see how many people live in Warren County, Illinois. The most basic data is the total population, which is the total number of people living in Warren County, Illinois. The estimated population of Warren County, Illinois is 16,887 people, with a median age of 39.6.

We can look at the total population in Warren County over the last 5 years to see how much it has changed.

Year Population Change 5-Year Change
2021
16,887
 -0.55% -3.11%
2020
16,981
 -0.96% -
2019
17,146
 -1.11% -
2018
17,338
 -0.52% -
2017
17,429
 - -

Population of Warren County, Illinois by Race and Ethnicity

We can also look at how the population has changed over the last 5 years by each of the race/ethnicity types as defined by the US Census Bureau.

Race 2021 2017 Change
White
82.6%
84.4%
 -2.13%
Black/African American
3.9%
2.8%
 +39.29%
Native
0.3%
0%
 0.00%
Hispanic
10%
9.2%
 +8.70%
Asian
1.5%
2.3%
 -34.78%
Hawaiian/Pacific Islander
0.1%
0%
 0.00%
Two Or More Races
1.4%
1.3%
 +7.69%
Other
0.3%
0%
 0.00%

This data can be very important for a number of reasons, including social and economic research, planning and development, and marketing to a multi-cultural population.

Note that the Native group includes both Native American and Alaskan Native people.

Population of Warren County, Illinois by Age and Gender

The age and gender of a population is another interesting demographic statistic because it lets us track trends in the population over time. For example, we can see how the population has changed over the last 5 years by median age as a total, and also by male and female.

Year Total Male Female
2021 39.6 -0.5% 37.8 -0.26% 41.2 -0.24%
2020 39.8 0% 37.9 -3.07% 41.3 +0.98%
2019 39.8 +1.27% 39.1 +4.55% 40.9 -0.24%
2018 39.3 +0.51% 37.4 -0.27% 41 +1.99%
2017 39.1 - 37.5 - 40.2 -

The median age of Warren County, Illinois gives you an idea of the age distribution, with half of the population being older than the median age and half being younger.

This can then be used to infer and compare against birth rates, parent ages, and more metrics to understand the population. For example, an increasing median age indicates an aging population, which can be a sign of a declining population in terms of birth rates and workforce participation.

Age 2021 2017
(Years) Male Female Male Female
0 to 9 1,086 -2.32% 968 -9.99% 1,046 860
10 to 19 1,240 -0.94% 1,365 -1.79% 1,224 1,338
20 to 29 1,064 +5.74% 1,110 -7.98% 1,126 1,022
30 to 39 1,043 -14.12% 1,037 -4.53% 897 979
40 to 49 928 -7.05% 983 -11.52% 854 859
50 to 59 1,245 -3.64% 1,213 -8.05% 1,188 1,115
60 to 69 955 +13.68% 1,064 +8.98% 1,090 1,162
70+ 878 +3.51% 1,250 -2.03% 904 1,223

Median Household Income

The latest median household income of Warren County, Illinois is $59,673.00.

In simple terms, the median income is the middle income of a group of people. Half of the people in the group make more than the median income, and half make less. The median income is a good indicator of the overall income of a group of people, and can be used to compare against other metrics such as the average income, per capita income, and more.

Median Income by Age

We can also look at the median income by age to see how the median income varies by age, and how it compares to the overall median income for Warren County.

  • Under 25
    $50,495.00
  • 25 to 44
    $63,704.00
  • 45 to 64
    $71,691.00
  • 65 and over
    $45,033.00

Average Household Income

Whenever we ask what is the average household income in Warren County, we are actually talking about the mean household income.

This is calculated by adding up all the incomes of all the households in Warren County, and then dividing that number by the total number of households. This is a good way to get a general idea of the average income of a group of people, but it can be skewed by a very high or very low incomes.

The average household income of Warren County, Illinois is currently $73,456.00.

In terms of accurately summarizing income at a geographic level, the median income is a better metric than the average income because it isn't affected by a small number of very high or very low incomes.

If you had an area where the average income was greater than the median, it can mean that there is significant income inequality, with income being concentrated in a small number of wealthy households.

3.70% of households in Warren County are classed as high income households (making $200,000+ per year).

Household Income Tiers

The US Census Bureau divides households into income tiers based on the median income for the area. This is a good way to compare the income of Warren County against other areas.

  • Less than $24,999
    17.26%
  • $25,000 to $49,999
    23.13%
  • $50,000 to $74,999
    22.10%
  • $75,000 to $99,999
    14.98%
  • $100,000 to $149,999
    14.98%
  • $150,000 to $199,999
    3.86%
  • $200,000 or more
    3.70%

Per Capita Income

The per capita income in Warren County is $29,403.00.

Per capita income is the average income of a person in a given area. It is calculated by dividing the total income of Warren County by the total population of Warren County.

This is different from the average or mean income because it includes and accounts for all people in Warren County, Illinois, including people like children, the elderly, unemployed people, retired people, and more.

Education Levels

We can also look at the education levels in Warren County to see how many people have a high school degree, a bachelor's degree, or a graduate degree.

Educational attainment is a good indicator of the overall education level of a population, and can be used to compare against other metrics such as the average income, per capita income, and more to see how education levels affect income, unemployment rates, and more.

  • Master's degree or higher
    8.64%
  • Bachelor's degree
    25.18%
  • Some college or associate's degree
    16.61%
  • High school diploma or equivalent
    47.30%
  • Less than high school diploma
    2.27%

Employment

Employment rates are all based around the total population in Warren County that are over the age of 16.

The total population of Warren County over the age of 16 is 13,628.

Of those people, a total of 61.80% are working or actively looking for work. This is called the labor force participation rate.

The participation rate is a useful market measure because it shows the relative amount of labor resources available to the economy.

The employment to total population rate in Warren County is 56.60%.

Employment by Age

We can look at the employment rates by age to see how it compares to the overall employment rate.

Age Population Participation Unemployment Rate
16 to 19 years 1,209 37.90% 21.60%
20 to 24 years 1,406 73.30% 6.90%
25 to 29 years 742 77.00% 9.40%
30 to 34 years 911 83.50% 7.60%
35 to 44 years 1,806 84.60% 18.20%
45 to 54 years 2,011 86.10% 6.30%
55 to 59 years 1,164 85.50% 1.80%
60 to 64 years 1,190 53.40% 3.30%
65 to 74 years 1,801 32.60% 0.00%
75 years and over 1,388 9.20% 0.00%

Employment by Race

Another very interesting employment statistic we can look at is the employment and unemployment rates by race in Warren County. The table below shows the rates for each of the ethnicity groups types defined by the US Census Bureau.

Age Population Participation Unemployment Rate
White 12,085 62.10% 7.20%
Black or African American 553 72.50% 23.90%
American Indian and Alaska Native 74 31.10% 34.80%
Asian 181 37.00% 0.00%
Native Hawaiian and Other Pacific Islander 13 84.60% 0.00%
Other 595 53.60% 13.50%
Two or more races 127 74.00% 21.30%
Hispanic or Latino 1,100 51.40% 15.90%
Not Hispanic or Latino 11,601 62.70% 6.90%

Occupations

In this section we can look at the most common occupations in Warren County as well as the gender breakdown and earnings of them.

The total population of civilian employees that are 16 years old or older in Warren County is 7,709, with median earnings of $37,391.00.

Women in Warren County, Illinois earning approximately 55.10% of the men's earnings.

Population Earnings
Total 7,709 $37,391.00
Male 3,939 $48,247.00
Female 3,770 $26,583.00

Occupations by Category

In the table below, we can break down the population and earnings even further by occupation. The list of occupation categories below will show you how many people are employed in each category and the median earnings of each profession.

Occupation Employed Earnings
Management 774 $52,200.00
Business and Financial 216 $55,900.00
Computer and Mathematical 55 $48,491.00
Architecture and Engineering 26 $78,864.00
Life, Physical, and Social Science 46 $59,750.00
Community and Social Service 97 $37,614.00
Legal 18 $0.00
Educational and Library 768 $33,462.00
Arts, Design, Entertainment, Sports, and Media 68 $4,815.00
Healthcare Practitioners 315 $48,938.00
Healthcare Support 317 $19,926.00
Firefighters and Protective Service 155 $19,493.00
Law Enforcement 94 $63,191.00
Food Preparation and Serving 259 $9,939.00
Building and Grounds Cleaning 386 $27,632.00
Personal Care and Service 176 $12,788.00
Sales 710 $40,000.00
Office and Administrative Support 994 $23,306.00
Farming, Fishing, and Forestry 135 $30,548.00
Construction and Extraction 235 $53,155.00
Installation, Maintenance, and Repair 159 $49,896.00
Production 766 $42,500.00
Transportation and Material Moving 559 $55,169.00

Occupations by Gender

The table below shows the same occupations from the list above, but we have split them by male and female to see how many male and females work in each occupation, the median earnings, and the male to female ratio of earnings.

That last metric is important because it can be used to look at the gender pay gap between men and women.

Occupation Male Female
Population Earnings Population Earnings
Management 554 $60,000.00 220 $49,643.00
Business and Financial 86 $36,250.00 130 $60,750.00
Computer and Mathematical 53 $48,578.00 2 $0.00
Architecture and Engineering 22 $79,318.00 4 $0.00
Life, Physical, and Social Science 29 $58,875.00 17 $87,875.00
Community and Social Service 22 $29,318.00 75 $40,125.00
Legal 18 $0.00 0 $0.00
Educational and Library 216 $49,038.00 552 $19,234.00
Arts, Design, Entertainment, Sports, and Media 37 $4,511.00 31 $5,446.00
Healthcare Practitioners 30 $49,750.00 285 $48,125.00
Healthcare Support 9 $0.00 308 $20,588.00
Firefighters and Protective Service 45 $20,521.00 110 $19,306.00
Law Enforcement 94 $63,191.00 0 $0.00
Food Preparation and Serving 84 $9,500.00 175 $10,038.00
Building and Grounds Cleaning 280 $47,813.00 106 $18,942.00
Personal Care and Service 19 $2,499.00 157 $13,059.00
Sales 331 $46,699.00 379 $26,927.00
Office and Administrative Support 102 $15,000.00 892 $23,347.00
Farming, Fishing, and Forestry 124 $30,570.00 11 $0.00
Construction and Extraction 229 $53,393.00 6 $0.00
Installation, Maintenance, and Repair 159 $49,896.00 0 $0.00
Production 556 $47,222.00 210 $37,500.00
Transportation and Material Moving 497 $56,858.00 62 $30,806.00

Households and Family Size

A household defined bu the US Census Bureau is a group of people who occupy a housing unit. A housing unit is a house, apartment, mobile home, group of rooms, or single room occupied as separate living quarters.

There are currently 6,818 households in Warren County, with an average household size of 2.32 people.

A family is defined as a group of two or more people related by birth, marriage, or adoption who live together in the same household.

There are 4,519 families in Warren County with an average family size of 2.84 people.

Households by Marital Status

The four categories of household by marital status are:

  • Married-couple family
  • Male householder with no spouse present
  • Female household with no spouse present
  • Nonfamily household

The table below shows the total number of households and families, with the average sizes of each.

Married Male Female Nonfamily
Total Households 3,259 392 868 2,299
Average Household Size 2.89 2.32 3.21 1.16
Total Families 3,259 392 868 0
Average Household Size 2.88 2.03 3.05 0

Poverty

Of the 4,519 families in Warren County, 9.10% are considered to be below the poverty threshold.

The table below shows the latest poverty thresholds in Warren County:

Household Size Poverty Threshold
1 Person $14,580.00
2 People $19,720.00
3 People $24,860.00
4 People $30,000.00
5 People $35,140.00
6 People $40,280.00
7 People $45,420.00
8 People $50,560.00

Housing

There are 7,613 housing units in Warren County, Illinois.

The table below shows the split between occupied and vacant units:

Total Percentage
Occupied 6,818 89.56%
Vacant 795 10.44%

18.22% of the total 7,613 housing units in Warren County are rental units. This is approximately 1,387 properties.

For owner-occupied housing units, a total of 5,242 are occupied by the owner - or 68.86% of the total.

Rental Rates

The median rent for a property in Warren County is $650.00.

In the chart below, we can look at the number of rental properties in Warren County that fall into a particular rent range. These can then be used to compare with other areas, or to see how they have changed over time.

  • No rent paid
    189
  • Less than $500
    348
  • $500 to $999
    923
  • $1,000 to $1,499
    85
  • $1,500 to $1,999
    26
  • $2,000 to $2,499
    5
  • $2,500 to $2,999
    0
  • $3,000 or more
    0

Property Value

The median value of a property in Warren County is $87,400.00.

Just like with rental rates, we can look at the number of properties in Warren County that fall into a particular value range.

  • Less than $50,000
    660
  • $50,000 to $99,999
    2,508
  • $100,000 to $149,999
    799
  • $150,000 to $199,999
    475
  • $200,000 to $299,999
    533
  • $300,000 to $499,999
    198
  • $500,000 to $999,999
    55
  • $1,000,000 or more
    14

Property Age

We can also look at the age of properties in Warren County. The chart below shows the number of properties in Warren County that fall into a particular age range.

  • 1939 or earlier
    2,754
  • 1940 to 1949
    740
  • 1950 to 1959
    963
  • 1960 to 1969
    746
  • 1970 to 1979
    1,237
  • 1980 to 1989
    370
  • 1990 to 1999
    266
  • 2000 to 2009
    401
  • 2010 to 2013
    133
  • 2014 or later
    3

Vehicles per Household

The number of vehicles available per household can be a good indicator of the level of affluence in an area. The chart below shows the number of households in Warren County that have a particular number of vehicles available.

  • No vehicles available
    383
  • 1 vehicle available
    2,108
  • 2 vehicles available
    3,065
  • 3 or more vehicles available
    1,262

Commuting to Work

In this section, we can also look at how people in Warren County get to work. The chart below shows the number of people in Warren County that commute to work in a particular way.

19.3 minutes is the average travel time to work for people in Warren County.

These commute times can be compared to other date like income and educational levels to see how they relate to each other and if there are any trends in the data that might suggest a correlation.

  • Less than 5 minutes
    861
  • 5 to 9 minutes
    1,578
  • 10 to 14 minutes
    1,040
  • 15 to 19 minutes
    745
  • 20 to 24 minutes
    775
  • 25 to 29 minutes
    478
  • 30 to 34 minutes
    689
  • 35 to 39 minutes
    130
  • 40 to 44 minutes
    181
  • 45 to 59 minutes
    178
  • 60 to 89 minutes
    291
  • 90 or more minutes
    95

Summary

We've covered a LOT of demographic and population data for Warren County, Illinois in this article! Hopefully you have found it very useful in your research of the area.

If you use any of the data found on this page, please consider linking back to USPopulation.org as the source and if you have any feedback or data requests, click here to contact us.

Places in Warren County, Illinois

We have data for 17 places in Warren County, Illinois. Click on a place below to see more information about the demographics of that place.