Mound Septic System Cost in Florida
Estimated 2026 installed range: $10,500 – $23,100
Get your own estimate in 30 seconds
Open the cost calculatorWhy Florida prices differ
Statewide cost drivers here are high water tables and clay soils. Locally, high water tables require mounds or aerobic systems with drain fields raised. That is why a mound system in Florida can land well above or below the national range of $10,000–$22,000.
All system types in Florida
| System | Low | High |
|---|---|---|
| Conventional | $3,700 | $8,400 |
| Chamber | $5,200 | $11,600 |
| Aerobic / ATU | $8,400 | $18,900 |
| Mound | $10,500 | $23,100 |
| Sand filter | $8,400 | $16,800 |
What mound systems are for
A mound system raises the drain field above the ground when the water table is high or soil is shallow. It is one of the most expensive common options.