What to Know Before Calling Union County Jail (TN): Which Number to Use
Getting through to the right person at Union County Jail or the Union County Sheriff's Office starts with dialing the correct number. Here are the official phone lines listed by the county, plus a quick way to figure out which one you need.
For jail-specific questions, the county lists a direct Jail line: 865-992-6262. This is your best starting point if your question involves someone currently held at Union County Jail.
The county also lists a Non-Emergency Dispatch number for the Union County Sheriff's Office: 865-992-4062. This is a separate line from the jail, so use it when you need to reach dispatch rather than the jail itself.
Need something related to records? Use the Records line listed by the Union County Sheriff's Office: 865-992-5212. The county labels this number simply as "Records," so match that label to your reason for calling.
For the Criminal Investigations unit, call 865-992-9407. That's the number the county lists under the "Criminal Investigations" label.
On the county page, phone numbers are organized by short department labels. The easiest approach is to match your reason for calling to the label you see. For example, "Records" has its own dedicated line (865-992-5212). If you need records, start there instead of guessing that another department can handle it.
Reminder: Match the county's label to the number. "Jail" (865-992-6262), "Non-Emergency Dispatch" (865-992-4062), and "Criminal Investigations" (865-992-9407) are all separate lines.
Not sure which department handles your question? Start with the Jail line at 865-992-6262, since that's the direct number listed for the jail. If you can't get through, or you're unsure who to ask for, try Non-Emergency Dispatch at 865-992-4062. Explain what you need clearly and ask for the best contact.
Tip: If you call Non-Emergency Dispatch (865-992-4062), have your key details ready and ask which department you should speak with. You'll get to the right line faster.
For anything time-sensitive or legal, double-check the phone number on the county's website before you call, especially if you're working from an old contact list or a saved number. Try to call during normal business hours when reaching county offices. Union County courthouse offices are open Monday through Friday from 8:00am to 4:00pm.
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