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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
DeKalb County is a county located in the U.S. state of Illinois. In 2000, the population was 88,969. As of 2007, the population is estimated at 103,729. Its county seat is Sycamore, Illinois. DeKalb County is part of the Chicago metropolitan statistical area.
History
- the text in this section is copied from an article in Wikipedia
DeKalb County Population by year
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2000 - 88,969
1990 - 77,932
1980 - 74,624
1970 - 71,654
1960 - 51,714
1950 - 40,781
1940 - 34,388
1930 - 32,644
1920 - 31,339
1910 - 33,457
1900 - 31,756
1890 - 27,066
1880 - 26,768
1870 - 23,265
1860 - 19,086
1850 - 7,540
1840 - 1,697
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DeKalb County was formed in 1837 out of Kane County, Illinois. The County was named in honor of Johann de Kalb a German (Bavarian) hero of the American Revolutionary War. Kalb was with Gen. Washington at Valley Forge. He was killed at the Battle of Camden.
Timeline
| Date | Event | Source
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| 1837 | County formed | Source:Red Book: American State, County, and Town Sources
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| 1837 | Marriage records recorded | Source:Red Book: American State, County, and Town Sources
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| 1837 | Probate records recorded | Source:Red Book: American State, County, and Town Sources
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| 1838 | Court records recorded | Source:Red Book: American State, County, and Town Sources
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| 1838 | Land records recorded | Source:Red Book: American State, County, and Town Sources
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| 1840 | First census | Source:Population of States and Counties of the United States: 1790-1990
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| 1840 | No significant boundary changes after this year | Source:Population of States and Counties of the United States: 1790-1990
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| 1877 | Birth records recorded | Source:Red Book: American State, County, and Town Sources
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Population History
- source: Source:Population of States and Counties of the United States: 1790-1990
| Census Year | Population
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| 1840 | 1,697
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| 1850 | 7,540
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| 1860 | 19,086
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| 1870 | 23,265
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| 1880 | 26,768
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| 1890 | 27,066
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| 1900 | 31,756
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| 1910 | 33,457
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| 1920 | 31,339
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| 1930 | 32,644
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| 1940 | 34,388
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| 1950 | 40,781
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| 1960 | 51,714
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| 1970 | 71,654
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| 1980 | 74,624
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| 1990 | 77,932
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Research Tips
External links
www.dekalbcounty.org/
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