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Welcome to Joliet ...

The city of Joliet is primarily located in Will County<1> and is the County Seat for Will County. A portion of Joliet extends into Kendall County.



The pronunciation of Joliet: JOH-lee-et<2>

Joliet was established in 1834.

When the people of Joliet refer to themselves (known as a demonym), they frequently use Jolietan<3>

From the  Census Estimates for 2019, Joliet has a population of 147,214 people<4> (see below for details).

The community of Joliet is 640 feet [195 m] above sea level.<5>.

Time Zone: Joliet lies in the Central Time Zone (CST/CDT) and observes daylight saving time

Area codes for Joliet: (815) & (779)<6>

The ZIP codes for Joliet: 60431-60436<7>

Websites for Joliet ...

Official Website:   www.ci.joliet.il.us/

Chamber of Commerce:   www.jolietchamber.com/

Population Details ...

Taken from the 2019 Census Estimates, Joliet had an population of 147,214 people. This is a decrease of 0.15% since the 2010 Census (or an increase of 38.59% since the 2000 Census).

At the time of the 2010 Census, Joliet had a population of 147,433 people (or 21.72% of the total population of Will County). This makes Joliet the county's most populous community.

The population of Joliet represents 1.15% of the population of Illinois (which has 12,830,632 people), making it the state's 4th most populous community.

With a 2010 count of 147,433 people, the population of Joliet increased 38.8% from the 2000 Census (with a count of 106,221 people).

More information can be found on the Census Page for Joliet.

Communities Also Named Joliet ...

Using our Gazetteer, we found that there are 2 communities that are also named Joliet - they are located in Montana and Texas.

For more information, see our Tidbits & Trivia Page for Joliet.

Communities near Joliet ...

We have created a list of 10 communities that are near Joliet.

  • Naperville
    (17 miles [27.4 km] to the north)
  • Bolingbrook
    (11 miles [17.7 km] to the north)
    • Note: The GPS coordinates that we are using for Bolingbrook have been provided by the GNIS.<9> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Bolingbrook
    • Bolingbrook is located in Will County
    • Population from the 2020 Census: 74,025 people
    • Jump to TripAdvisor's Tourism page for Bolingbrook <8>
  • Orland Park
    (13 miles [20.9 km] to the northeast)
  • Tinley Park
    (14 miles [22.5 km] to the east)
    • Note: The GPS coordinates that we are using for Tinley Park have been provided by the GNIS.<9> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Tinley Park
    • Tinley Park is located in Cook County
    • Population from the 2020 Census: 55,221 people
    • Jump to TripAdvisor's Tourism page for Tinley Park <8>
  • Downers Grove
    (19 miles [30.6 km] to the north)
  • Plainfield
    (9 miles [14.5 km] to the northwest)
  • Romeoville
    (7 miles [11.3 km] to the north)
    • Note: The GPS coordinates that we are using for Romeoville have been provided by the GNIS.<9> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Romeoville
    • Romeoville is located in Will County
    • Population from the 2020 Census: 39,770 people
    • Jump to TripAdvisor's Tourism page for Romeoville <8>
  • Oswego
    (17 miles [27.4 km] to the northwest)
  • Woodridge
    (14 miles [22.5 km] to the north)
    • Note: The GPS coordinates that we are using for Woodridge have been provided by the GNIS.<9> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Woodridge
    • Woodridge is located in DuPage County
    • Population from the 2020 Census: 33,329 people
    • Jump to TripAdvisor's Tourism page for Woodridge <8>
  • Oak Forest
    (17 miles [27.4 km] to the east)
    • Note: The GPS coordinates that we are using for Oak Forest have been provided by the GNIS.<9> The coordinates still need to be verified.
    • Jump to our Gazetteer entry for Oak Forest
    • Oak Forest is located in Cook County
    • Population from the 2020 Census: 26,884 people
    • Jump to TripAdvisor's Tourism page for Oak Forest <8>

To Help With Your Genealogy Research ...

We have a couple of sections for those tracing their genealogy.

We created a list of cemeteries that are in the area around Joliet. Our list includes the location of those cemeteries and we provide an overhead view. See our Cemetery List for Joliet.

Using the information from an 1895 Atlas, we've created a list of communities that were in the area of Joliet. Our list includes information such as whether the 1895 community had a post office or railroad service. See our List of 1890's Communities around Joliet.

We also have a detailed list of newspapers that have been published in the area around Joliet. Our list includes 67 papers. See our Newspapers Page for Joliet.

TripAdvisor Tourism Pages for Joliet ...

Looking for more information about Joliet? A wonderful source is the TripAdvisor website. We always start with the TripAdvisor Tourism page, where you can read an overview with links that will help you find lodging, restaurants and attractions.

In addition to the Tourism page for Joliet, there are neighboring communities that also have Tourism pages. More information about those communities can be found on our TripAdvisor Page for Joliet.

Adding Joliet to Our Gazetteer ...

We originally found mention of Joliet in both the FIPS-55 and the GNIS. For more information, see the FIPS and GNIS Codes sections on our Miscellaneous Page.

From our notes, the earliest published mention we've found for Joliet was in the document titled List of Post Offices from Cameron Blevins and Richard Helbock.<10>

From that list, the Joliet post office opened in 1845.

We also found Joliet in the book titled U.S. Post Offices (Oct. 1846).

For more details, see References and Mentions for Joliet.

The official website for Joliet: www.ci.joliet.il.us/

The official website for Will County: www.willcountyillinois.com/

The official website for State of Illinois: https://illinois.gov

Footnotes ...

<1>If you're interested in how the shape of Illinois' counties, including Will, have changed over time, we recommend the Atlas of Historical County Boundaries.
<2>The pronunciation we've provided is our attempt to give a phonetic pronunciation for Joliet. While it might not be exactly right, hopefully it will be close. If we have it wrong or there's a better way to pronounce the name, please contact us through our Feedback Page.
<3>A demonym is the name for a resident of a community which is usually derived from (or is related to) the name of that community. In other words, it's how the residents of Joliet refer to themselves. It's important to note that there aren't any rules for taking a city's name and turning it into a demonym. A demonym is informal and while the majority of Joliet may use one name, keep in mind that others may use something different.
<4>Population counts have been provided by the U.S. Census Bureau. For more detail, please visit our Census Page for Joliet.
<5>The elevation is an estimate for the area around Joliet - it will be higher in some places and lower in others.
<6>Area code (779) is an overlay for area code (815).
<7>ZIP Codes have been created by the United States Postal Service (USPS) as a way of grouping addresses to make delivery more efficient. The boundaries of the ZIP Code can be changed, re-assigned, eliminated or overlapped with other ZIP Codes. So keep in mind that any given ZIP Code is only 'loosely' associated with a city (such as Joliet). When looking for a ZIP Code, whether Joliet or elsewhere, it's always best to check the website of the United States Postal Service (USPS).

Our list of ZIP Codes for Joliet includes: 60431, 60432, 60433, 60434, 60435 & 60436.
<8>While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program.
<9>The location has been supplied by the Geographic Names Information System - which is maintained by the U.S. Geological Survey (USGS). While these values should be definitive, we found that accuracy can vary and you should double-check the location if accuracy is required.
<10>A copy of their list with background information can be found at:

      https://cblevins.github.io/us-post-offices/data-biography/









 

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This page was last modified/updated: 19 Sep 2024