Johnson County is the name of several counties in the United States:

• Johnson County, Arkansas
• Johnson County, Georgia
• Johnson County, Illinois
• Johnson County, Indiana
• Johnson County, Iowa
• Johnson County, Kansas
• Johnson County, Kentucky
• Johnson County, Missouri
• Johnson County, Nebraska
• Johnson County, Tennessee
• Johnson County, Texas
• Johnson County, Wyoming

• Johnston County (disambiguation)
• Johnson County War, an 1892 range war in Wyoming

Topics referred to by the same term

This disambiguation page lists articles about distinct geographical locations with the same name.
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