Welcome to Oak Brook ...
The village of Oak Brook is primarily located in DuPage County<1>. A portion of Oak Brook extends into Cook County.
A typical abbreviation for Oak Brook: Oak Brk.
From the Census Estimates for 2019, Oak Brook has a population of 8,079 people<2> (see below for details).
Oak Brook is 660 feet [201 m] above sea level.<3>.
Time Zone: Oak Brook lies in the Central Time Zone (CST/CDT) and observes daylight saving time
Area Codes for Oak Brook: 630 & 331<4>
The ZIP code for Oak Brook: 60523<5>
Population Details ...
Taken from the 2019 Census Estimates, Oak Brook had an population of 8,079 people. This is an increase of 2.49% since the 2010 Census (or a decrease of 7.16% since the 2000 Census).
At the time of the 2010 Census, Oak Brook had a population of 7,883 people. This makes Oak Brook the county's 28th most populous community.
The population of Oak Brook represents 0.06% of the population of Illinois (which has 12,830,632 people), making it the state's 257th most populous community.
With a 2010 count of 7,883 people, the population of Oak Brook decreased 9.41% from the 2000 Census (with a count of 8,702 people).
More information can be found on the Census Page for Oak Brook.
Websites for Oak Brook ...
Official Website: www.oak-brook.org/
Junior League: www.jlkd.org/
Communities near Oak Brook ...
We have created a list of 10 communities that are near Oak Brook.
- Chicago
(16 miles [25.7 km] to the east)
- Aurora
(19 miles [30.6 km] to the west)
- Naperville
(11 miles [17.7 km] to the southwest)
- Cicero
(10 miles [16.1 km] to the east)
- Bolingbrook
(11 miles [17.7 km] to the southwest)
- Arlington Heights
(17 miles [27.4 km] to the north)
- Evanston
(19 miles [30.6 km] to the northeast)
- Schaumburg
(14 miles [22.5 km] to the northwest)
- Note: The GPS coordinates that we are using for Schaumburg have been provided by the GNIS.<7> The coordinates still need to be verified.
- Jump to our Gazetteer entry for Schaumburg
- Schaumburg is located in Cook County
- Population from the 2020 Census: 72,049 people
- Jump to TripAdvisor's Tourism page for Schaumburg <6>
- Palatine
(19 miles [30.6 km] to the north)
- Skokie
(17 miles [27.4 km] to the northeast)
- Note: The GPS coordinates that we are using for Skokie have been provided by the GNIS.<7> The coordinates still need to be verified.
- Jump to our Gazetteer entry for Skokie
- Skokie is located in Cook County
- Population from the 2020 Census: 62,404 people
- Jump to TripAdvisor's Tourism page for Skokie <6>
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 Oak Brook. Our list includes the location of those cemeteries and we provide an overhead view. See our Cemetery List for Oak Brook.
Using the information from an 1895 Atlas, we've created a list of communities that were in the area of Oak Brook. 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 Oak Brook.
We also have a detailed list of newspapers that have been published in the area around Oak Brook. Our list includes 14 papers. See our Newspapers Page for Oak Brook.
TripAdvisor Tourism Pages for Oak Brook ...
Looking for more information about Oak Brook? 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 Oak Brook, there are neighboring communities that also have Tourism pages. More information about those communities can be found on our TripAdvisor Page for Oak Brook.
Footnotes ...
| <1> | If you're interested in how the shape of Illinois' counties, including DuPage, have changed over time, we recommend the Atlas of Historical County Boundaries. |
| <2> | Population counts have been provided by the U.S. Census Bureau. For more detail, please visit our Census Page for Oak Brook. |
| <3> | The elevation is an estimate for the area around Oak Brook - it will be higher in some places and lower in others. |
| <4> | When there's a risk of an area code running out of phone numbers, an 'Overlay Area Code' is created that has the same geographic boundaries as the existing area code. In this case, the 630 code has been Overlayed with the 331 area code. New phone numbers in the Oak Brook area will be assigned with one of these codes: 630 or 331. As a result, placing a call in the Oak Brook area will require 10-digit dialing (where you enter both the area code and then the phone number). |
| <5> | 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 village (such as Oak Brook). When looking for a ZIP Code, whether Oak Brook or elsewhere, it's always best to check the website of the United States Postal Service (USPS). |
| <6> | While we're fans and frequent users of TripAdvisor, you should know that we're also members of the TripAdvisor affiliate program. |
| <7> | 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. |