Septic System Costs in Tennessee (2026)

Based on BLS wage data, septic system in Tennessee costs an average of $7,277, ranging from $7,055 to $7,548.

Tennessee Average $7,277

Septic System Costs by City in Tennessee

Reviewed by

Alex Johnson, P.E.

Mechanical Engineer • 15+ Years Home Repair Experience • Licensed Contractor

All cost data on this page has been verified against BLS and Census Bureau records. See our methodology →