People with the last name Castleton in Illinois
- Arthur Castleton
- Barb Castleton
- Barbara Castleton
- Cassie Castleton
- Darin Castleton
- Dave Castleton
- Denise Castleton
- Ethan Castleton
- James Castleton
- Jeanette Castleton
- Jesse Castleton
- Joanne Castleton
- John Castleton
- Jonathan Castleton
- Kathleen Castleton
- Lisa Castleton
- Michelle Castleton
- Nilda Castleton
- Paula Castleton
- Peter Castleton
- Remar Castleton
- Robert Castleton
- Samantha Castleton
- Steven Castleton
- Terrance Castleton
- Tiffany Castleton
- Timothy Castleton
- Toby Castleton
- Tony Castleton
- Ujsees Castleton
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