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- source: Getty Thesaurus of Geographic Names
- source: Family History Library Catalog
- the text in this section is copied from an article in Wikipedia
Cook County is a county in the U.S. state of Illinois, with its county seat in Chicago. It is the second most populous county in the US after Los Angeles County. The county has 5,217,080 residents, which is 40.5 percent of all Illinois residents. Cook County's population is larger than that of 29 individual U.S. states and the combined populations of the seven smallest states. There are over 130 incorporated municipalities in Cook County, the largest of which is Chicago, which makes up approximately 54% of the population of the county. That part of the county which lies outside of the Chicago city limits is divided into 30 townships. Geographically the county is the fifth largest in Illinois by land area and shares the state's Lake Michigan shoreline with Lake County. Cook County is mainly urban and very densely populated, containing most of the City of Chicago and many suburbs.
History
- the text in this section is copied from an article in Wikipedia
Cook County was created on January 15, 1831, out of Putnam County by an act of the Illinois General Assembly. It was the 54th county established in Illinois and was named after Daniel Cook, one of the earliest and youngest statesmen in Illinois history, who served as the second U.S. Representative from Illinois and the state's first Attorney General. In 1839, DuPage County was carved out of Cook County.
Timeline
Population History
- source: Source:Population of States and Counties of the United States: 1790-1990
| Census Year | Population
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| 1840 | 10,201
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| 1850 | 43,385
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| 1860 | 144,954
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| 1870 | 349,966
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| 1880 | 607,524
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| 1890 | 1,191,922
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| 1900 | 1,838,735
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| 1910 | 2,405,233
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| 1920 | 3,053,017
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| 1930 | 3,982,123
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| 1940 | 4,063,342
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| 1950 | 4,508,792
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| 1960 | 5,129,725
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| 1970 | 5,492,369
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| 1980 | 5,253,655
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| 1990 | 5,105,067
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Research Tips
External links
- Outstanding guide to Cook County family history and genealogy resources (FamilySearch Research Wiki). Birth, marriage, and death records, censuses, wills, deeds, county histories, cemeteries, churches, naturalizations, newspapers, libraries, and genealogical societies.
- www.co.cook.il.us/
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