- source: Getty Thesaurus of Geographic Names
- source: Family History Library Catalog
- the text in this section is copied from an article in Wikipedia
Lake County is the farthest north-east county in the U.S. state of Illinois. A 2006 census estimated the population was 713,076. Its county seat is Waukegan, Illinois. According to the 2000 United States Census, Lake County is the 31st richest county by per-capita income. The county is part of the Chicago metropolitan area. Its lakefront communities, along with some in Cook County, are part of an area known as the North Shore.
Originally part of McHenry County, the townships comprising Lake County were carved out into a separate county in 1839.
Timeline
| Date | Event | Source
|
| 1836 | Marriage records recorded | Source:Red Book: American State, County, and Town Sources
|
| 1839 | County formed | Source:Red Book: American State, County, and Town Sources
|
| 1839 | Land records recorded | Source:Red Book: American State, County, and Town Sources
|
| 1839 | Probate records recorded | Source:Red Book: American State, County, and Town Sources
|
| 1840 | Court records recorded | Source:Red Book: American State, County, and Town Sources
|
| 1840 | First census | Source:Population of States and Counties of the United States: 1790-1990
|
| 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
|
Population History
- source: Source:Population of States and Counties of the United States: 1790-1990
| Census Year | Population
|
| 1840 | 2,634
|
| 1850 | 14,226
|
| 1860 | 18,257
|
| 1870 | 21,014
|
| 1880 | 21,296
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| 1890 | 24,235
|
| 1900 | 34,504
|
| 1910 | 55,058
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| 1920 | 74,285
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| 1930 | 104,387
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| 1940 | 121,094
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| 1950 | 179,097
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| 1960 | 293,656
|
| 1970 | 382,638
|
| 1980 | 440,372
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| 1990 | 516,418
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Research Tips
External links
www.rootsweb.com/~illake/
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