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Crystal Lake, Illinois

Located in McHenry County, Illinois, Crystal Lake was established in 1874. Named for crystal-clear lake.
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Founded 1874 | Population 40,000 | Peak 40,000 (2024) | County McHenry County

Top 10 Most Important Events for Crystal Lake, Illinois

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1874Founded: NW exurb.
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1890Higher Education: Educational institutions helped define Crystal Lake's character and economy.
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1924Economic Development: Crystal Lake grew through the automobile industry.
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2010Modern Era: Crystal Lake continued to develop as part of the greater metropolitan area, with new infrastructure and community amenities.
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Complete Historical Timeline

1874 Culture
Founded
1890 Culture
Higher Education
1924 Industry
Economic Development
2010 Culture
Modern Era

Did You Know?

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NW Chicago exurb.
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Named for crystal-clear lake.
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McHenry County.
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Crystal Lake was founded in 1874.
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Crystal Lake has a population of approximately 40,000.
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