Cook County, Illinois

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Open an interactive map for Cook and the surrounding area.

The 2000 Census showed that Cook County had a population of 5,377,092 people. This represented 43.23% of the total population of Illinois, making it the state's most populous county (out of 102 counties).

From the Census estimates for 2008 ^<1>, Cook had a population of 5,294,664 people. This is a decrease of 1.53% since the 2000 Census.

The following table shows the recent changes in population. For the years after 2000, the population counts are estimated.

Year	Population	Change Since 2000	Year-to-Year Change
2008	5,294,664	-1.55%	+0.44% since 2007
2007	5,271,405	-1.98%
2006	5,270,146	-2%	-0.35% since 2005
2005	5,288,709	-1.66%	-0.52% since 2004
2004	5,316,484	-1.14%	-0.43% since 2003
2003	5,339,646	-0.71%	-0.39% since 2002
2002	5,360,625	-0.32%	-0.33% since 2001
2001	5,378,570
---
2000	5,377,927	The Last Census

Cook County had 2,096,121 Housing Units ^<2> at the time of the 2000 Census.

The 2000 Census shows that Cook County has a total area ^<3> of 1,635 square miles [4,234 km²]. Of this total, 945 square miles [2,449 km²] of the area is land, with the balance (42.16%) being water (689 square miles [1,785 km²]).

Using the above population and land area values, Cook County had a population density of 5,685 people per square mile [2,195 people/km²], making it the most densely populated county in Illinois.

US Census QuickFacts

The Census Bureau has created documents containing demographic information that are called QuickFacts. A QuickFact that is specific to Cook County is available. The QuickFact also contains a comparison between Cook and the state of Illinois.

Click here for the Cook County QuickFact (QF-17031).

Below are some of the communities that are located in Cook County:

Community	Census QuickFact	Population (2008 est)	Population (2000 Census)	Change in Population
Chicago	QF-1714000	2,853,114	2,896,016	-1.48%
Elgin	QF-1723074	106,330	94,487	12.53%
Cicero	QF-1714351	80,414	85,616	-6.08%
Evanston	QF-1724582	77,693	74,239	4.65%
Arlington Heights	QF-1702154	73,399	76,031	-3.46%
Schaumburg	QF-1768003	71,716	75,386	-4.87%
Palatine	QF-1757225	67,080	65,479	2.45%
Skokie	QF-1770122	66,620	63,348	5.17%
Tinley Park	QF-1775484	59,198	48,401	22.31%
Des Plaines	QF-1719642	57,062	58,720	-2.82%
Orland Park	QF-1756640	55,514	51,077	8.69%
Hoffman Estates	QF-1735411	53,641	49,495	8.38%
Mount Prospect	QF-1751089	53,338	56,265	-5.2%
Oak Lawn	QF-1754820	53,244	55,245	-3.62%
Berwyn	QF-1705573	49,919	54,016	-7.58%
Oak Park	QF-1754885	49,557	52,524	-5.65%
Glenview	QF-1729938	46,180	41,847	10.35%
Elmhurst	QF-1723620	46,013	42,762	7.6%
Buffalo Grove	QF-1709447	42,972	42,909	0.15%
Bartlett	QF-1704013	42,209	36,706	14.99%

The Commemorative
Quarter for
Illinois ^<4>

Search for Local Businesses

We have prepared the following searches to help you find businesses, travel and vacation activities. It's likely that the search results won't include all of the businesses that are in this area, but the results should give you a good foundation for further searches.

For what it's worth: In addition to helping you submit your own search, clicking 'Other...' will frequently (but not always) show you some popular searches for this area.

If you find an error or your business wasn't included in the results, please contact Google to help them resolve the issue (we simply link to 'Search-by-Location' and have no control over their results).

Other Roadside Stops

About Illinois

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Off-the-Road Links

U.S. Census Bureau

Census QuickFact for Cook County

The following websites contain collections of photos taken around Cook County:

Flickr.com

Panoramio.com

Looking for more websites and/or information centered on Cook? Please visit the Map Page for Cook.

Footnotes

<1>	On a yearly basis, the US Census Bureau creates an estimate of the county's population. Keep in mind that this is an estimate and not an actual count. The last physical count was the 2000 Census and the next count will be for the 2010 Census. For more information, please visit the U.S. Census Bureau. - Return to Citation
<2>	A Housing Unit is a broad term for those places where people live, whether occupied or temporarily vacant, such as a house, an apartment, a mobile home, or an area that is considered as a separate living quarter. Separate living quarters (consisting of one or more rooms) are considered to be those places where people live, sleep and eat separately from others and that have access to the outside (either directly or by a shared hallway). - Return to Citation
<3>	The area value has been supplied by the US Census Bureau and it can be different than the geographic boundaries of Cook. The value given by the Census Bureau reflects their statistical (or sampling) requirements. - Return to Citation
<4>	All Quarter-dollar coin images from the United States Mint. - Return to Citation

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Last Modified: 09 Sep 2009