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Knox County Jail
Find the contact details, address, facility type, and official source links Jail411 holds for Knox County Jail in Tennessee. Confirm current custody before acting.
Facility record / Tennessee
Knox County Jail is a county or city jail in Knoxville, Knox County, Tennessee. It has a rated capacity of 215 and a reported population of 210 — about 98% occupancy, as recorded in the February 2026 federal dataset. By capacity it is the 41st-largest of the 109 county or city jail records listed for Tennessee with a published capacity. It is one of 4 correctional facilities in Knox County.
Jail411 does not hold custody records. A listing here does not mean anyone is held at this address. Confirm the person’s location with the responsible agency before you travel, send money, or pay for a service.
Where this record came from. The contact, status and security fields, with capacity and population, come from the HIFLD and Federal Bureau of Prisons directory release refreshed February 2026. They describe the record, not today’s population. Check the facility’s current official website.
Contact this facility
- Phone
- (865) 342-9620
- Address
- 400 Main St.
Knoxville, TN 37902Open in maps - Official page
- Official page at knoxsheriff.org
- County
- Knox County
Facility details
Capacity
210 people in a facility designed for 215
As of the February 2026 federal dataset.
Listed as open in the February 2026 directory release.
Finding someone held here
Use the county system for a recent arrest. A state corrections search covers people in state custody. It generally will not list someone booked into a county jail this week. Bookings, bail, release, and visiting are all handled by Knox County Sheriff’s Office.
Official site for this facility →
Call this facility directly: (865) 342-9620
Before you travel, pay, or mail anything
Get two things first: which facility the person is actually in, and their booking or ID number. Almost nothing works without them. Then check this facility’s current instructions — rules and service providers change.
Other facilities in Knox County
| Facility | City | Type | Security |
|---|---|---|---|
| Knox County Detention Facility | Knoxville | County or city jail | Maximum |
| Knox County Work Release Center | Knoxville | Community corrections / work release | — |
| Richard L Bean Juvenile Service Center | Knoxville | Juvenile facility | Juvenile |
Clear information.
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Can Jail411 tell me if someone is in custody right now?
No. Jail411 does not hold live custody records. Use the official locator for the county, state, federal or ICE system that has the person; start here if you do not know which.
Does posting bond mean the person comes home?
Not always. A probation or parole hold, another county's warrant or an immigration detainer can keep someone in custody after bond is posted. Ask the jail what holds are on the booking before you pay.
What should I confirm before visiting?
The person's current facility, the visiting schedule, approval requirements, accepted identification and arrival instructions. Check the facility page and its official sources before you travel.
What if I find something that needs correcting?
Send us the page and the detail that needs attention. Include the official source when you have one. Do not send private booking documents or other sensitive personal information.
Plan the next step.
Practical guides for calls, visits, mail, money and release.