The following is a summary of acts which authorized boundary changes for
Lake County.
- Acts of 1870, Chapter 30, established out of that portion of Obion County which lied west of low water mark of Reel Foot Lake the County of Lake.
- Acts of 1893, Chapter 173, changed the boundary lines between Lake and Obion counties.
- Acts of 1897, Chapter 176, changed the boundary lines in accordance with the constitutional provision and legislative Act creating the county of Lake.