Septic System Costs in Hawaii (2026)

Based on BLS wage data, septic system in Hawaii costs an average of $11,947, ranging from $11,396 to $12,323.

Hawaii Average $11,947

Septic System Costs by City in Hawaii

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 →