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Septic System Costs in Missouri (2026)

Based on BLS wage data, septic system in Missouri costs an average of $7,754, ranging from $7,559 to $7,960.

Missouri Average $7,754

Septic System Costs by City in Missouri

Kansas City $7,923 St. Louis $7,960 Springfield $7,559 Columbia $7,574

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Alex - Founder

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 →

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