Joliet, Illinois Population 2023

151,241

Joliet is a city located in Will County Illinois. It is also the county seat of Will County. With a 2023 population of 151,241, it is the 4th largest city in Illinois and the 187th largest city in the United States.Joliet is currently growing at a rate of 0.19% annually and its population has increased by 0.58% since the most recent census, which recorded a population of 150,362 in 2020. Spanning over 65 miles, Joliet has a population density of 2,358 people per square mile.

The average household income in Joliet is $82,703 with a poverty rate of 13.27%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Joliet is 33.8 years, 33.2 years for males, and 34.6 years for females.

Located some 30 miles southwest of Chicago in the Kendall and Will counties, Joliet is the third largest city in the state of Illinois, recently overtaking Naperville, and is the county seat of Will County. Joliet is part of the Chicago metro area, known as Chicagoland, which as an estimated population of more than 9.5 million as the country's third-largest metro area.

Population Growth

At the time of Joliet’s incorporation in the 1850s, the population stood at around 2,700. This had exploded by 1860 to over 7,000. The 1890s saw the next largest percentage of growth, with a 7.15% annual growth rate, growing from 11,685 in 1880 to 23,264.

A relatively steady rise continued in the decades to come, until the years between 1970 and 1990 saw a growth rate of -25%. This turned around through the decade up to the year 2000, however, due in no small part to millions of dollars of government spending to revitalize the city. This brought a rise from 76,836 in 1990 to over 106,000 in 2000. Between 2010 and 2011, Joliet was the fastest growing city in the Midwestern United States, and the 18th fastest growing city in the country as a whole. Joliet is expected to continue its modest growth.

Louis Joillet, namesake of the city, and Father Jacques Marquette set up camp along the Des Plaines River on a large mound just outside present day Joliet in 1673. The hill would go on to be called Mound Jolliet, and become a popular site for mining by early settlers.

In the aftermath of the Black Hawk war in 1833, a cabin was built along the Des Plaines River. Over the river from this, the village called “Juliet” was built. The name was changed in 1845 to “Joliet” and was incorporated a second time (after a first attempt was rescinded almost 10 years prior due to residents’ desire to tax expenses) in 1852.

The 1870s saw some of the first steel mills in the entire country being built in Joliet, seeing its previous main commodity stone replaced with steel, earning it the nickname “The City of Steel.” This attracted thousands of southeastern Europeans to Joliet, who also found work on the railway that serviced the mill.

The large labor force allowed the city to attract other industries. Brick companies, horseshoe factories, machine manufacturers, bridge builders, and many more established their businesses in the area, and continued to do so well toward the end of the 20th century.

Today, millions of people visit Joliet for its riverboat casinos and NASCAR racetracks.

Joliet Demographics

According to the most recent ACS, the racial composition of Joliet was:

  • White: 64.19%
  • Black or African American: 16.72%
  • Other race: 10.62%
  • Two or more races: 5.74%
  • Asian: 2.11%
  • Native American: 0.58%
  • Native Hawaiian or Pacific Islander: 0.04%
The current population of Joliet, Illinois is 151,241 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 150,362.

Joliet, Illinois Population 2023

Population by Race

White

Black or African American

Other race

Two or more races

Asian

Native American

Native Hawaiian or Pacific Islander

Joliet Population by Race

Joliet Population Pyramid 2023

Joliet Median Age

33.8

Total

33.2

Male

34.6

Female

Joliet Adults

There are 107,424 adults, (15,037 of whom are seniors) in Joliet.

Joliet Age Dependency

59.5

Age Dependency Ratio

16.3

Old Age Dependency Ratio

43.2

Child Dependency Ratio

Joliet Sex Ratio

Female74,35450.47%
Male72,96949.53%

Joliet Population by Age

Joliet Renter vs Owner Occupied by Household Type

3.58

Average Family Size

2.98

Average Household Size

70.0%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Joliet Households and Families

Male

Female

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Joliet Educational Attainment by Sex (over 25)

Joliet Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

The highest rate of high school graduation is among white people with a rate of 79.73%.

The highest rate of bachelors degrees is among islander people with a rate of 42.59%.

Joliet Educational Attainment by Race

All

Male

Female

$42,669

Average Earnings

$53,886

Average Male

$32,064

Average Female

Joliet Earnings by Educational Attainment

Joliet Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Joliet Language

72.57% of Joliet residents speak only English, while 27.43% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 23.77% of the population.

Joliet Language

Joliet Poverty by Race

rate

13.27%

Overall Poverty Rate

9.33%

Male Poverty Rate

11.61%

Female Poverty Rate

Poverty in Joliet

The race most likely to be in poverty in Joliet is Black, with 25.08% below the poverty level.

The race least likely to be in poverty in Joliet is White, with 6.42% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.4%. Among those working part-time, it was 11.16%, and for those that did not work, the poverty rate was 17.63%.

Joliet Poverty

Joliet Poverty Rate by Education

Joliet Poverty Rate by Employment Status and Sex

Joliet Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

mean

median

Income by Household Type

Joliet Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

46.9%

Overall Marriage Rate

47.5%

Male Marriage Rate

46.3%

Female Marriage Rate

Joliet Married by Age and Sex

male

female

Joliet Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 45-54.

Joliet Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Joliet Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

5,405

Number of Veterans

4,998

Male Veterans

407

Female Veterans

Joliet Veterans by War

Joliet Veterans by Age

count

Joliet Veterans by Race

Joliet Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

5.76%

Veteran Poverty Rate

23.27%

Veteran Disability Rate

Joliet Veterans by Education

LaborForceParticipation

70.4%

Labor Force Participation

66.2%

Employment Rate

5.9%

Unemployment Rate

Joliet Employment by Age

LaborForceParticipation

Joliet Employment by Race

LaborForceParticipation

Joliet Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

71.36%

Born in Joliet

84.42%

Native Born

13.55%

Foreign Born

7.29%

Non Citizen

6.26%

Naturalized

Place of Birth

84.42% of Joliet residents were born in the United States, with 71.36% having been born in Illinois. 7.29% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Joliet Place of Birth

Note: data after 2020 is projected based on recent growth

Joliet Population by Year