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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
Grundy County is a county located in the U.S. state of Illinois. According to the 2010 census, it has a population of 50,063, which is an increase of 33.4% from 37,535 in 2000. Its county seat is Morris. The center of population of Illinois is located in Grundy County, just northeast of the Village of Mazon. This county is part of the Chicago metropolitan area. Illinois' State Fossil, the unique and bizarre Tully Monster was first found in Mazon Creek. Grundy County Speedway is located in Morris.
History
- the text in this section is copied from an article in Wikipedia
Grundy County was established on February 17, 1841. It was formed out of LaSalle County and named for Felix Grundy.
Timeline
| Date | Event | Source
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| 1832 | Land records recorded | Source:Red Book: American State, County, and Town Sources
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| 1837 | Court records recorded | Source:Red Book: American State, County, and Town Sources
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| 1841 | County formed | Source:Red Book: American State, County, and Town Sources
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| 1841 | Marriage records recorded | Source:Red Book: American State, County, and Town Sources
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| 1841 | Probate records recorded | Source:Red Book: American State, County, and Town Sources
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| 1850 | First census | Source:Population of States and Counties of the United States: 1790-1990
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| 1850 | No significant boundary changes after this year | Source:Population of States and Counties of the United States: 1790-1990
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| 1876 | 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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| 1850 | 3,023
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| 1860 | 10,379
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| 1870 | 14,938
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| 1880 | 16,732
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| 1890 | 21,024
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| 1900 | 24,136
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| 1910 | 24,162
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| 1920 | 18,580
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| 1930 | 18,678
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| 1940 | 18,398
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| 1950 | 19,217
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| 1960 | 22,350
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| 1970 | 26,535
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| 1980 | 30,582
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| 1990 | 32,337
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Research Tips
The Grundy County ILGenWeb site is a wealth of information, and many, many items can be found in the USGenWeb Archives.
External links
- Outstanding guide to Grundy 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.
- Grundy County, ILGenWeb
- USGenWeb Archives for Grundy County - Search
- Illinois State Archives Grundy County Fact Sheet
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