Septic Systems in Vermilion Parish, LA

Modeled costs, available official data & local verification guidance

Pop. 57,359 ~24% on septic ~5,506 septic homes

Our modeled range for septic pumping in Vermilion Parish, Louisiana is $300-$550. A modeled conventional installation range is $5,300-$10,650. The site model estimates approximately 5,506 homes may use septic systems; this is not a county count.

Septic System Costs in Vermilion Parish

ServiceLowAverageHigh
Pumping / Cleaning$300$400$550
Routine Inspection$200$300$400
Real Estate Inspection$350$500$700
Minor Repair$650$950$4,600
Conventional Installation$5,300$7,600$10,650
Aerobic System Installation$10,000$14,250$19,950
Drainfield Replacement$5,300$7,600$10,650
Perc Test$800$1,150$1,600

Modeled estimates derived from national reference ranges and a regional multiplier, not observed local quotes. Actual costs depend on system type, site conditions, permits, and provider.

Groundwater & Water Table in Vermilion Parish

Monitoring Wells
18
Avg Depth to Water
20.9 ft
Median Depth
14.5 ft
Shallowest Recorded
8.3 ft

Water table depths in this county are generally favorable for conventional septic systems.

Source: USGS National Water Information System. Based on 252 measurements from monitoring wells.

Septic System FAQ for Vermilion Parish

How much does septic pumping cost in Vermilion Parish?
Our modeled pumping range for Vermilion Parish, Louisiana is $300-$550, with a modeled midpoint of $400. This is not an observed local quote. Actual cost varies by tank size, access, travel distance and tank condition.
How much does a new septic system cost in Vermilion Parish?
Our modeled conventional-installation range for Vermilion Parish is $5,300-$10,650; the modeled aerobic-system range is $10,000-$19,950. These are planning indicators, not observed local quotes. A site evaluation and provider estimate are needed.
Do I need a permit for a septic system in Vermilion Parish?
Permit requirements depend on the work, property and responsible authority. Review the verified official-source summary on this page, then contact the authority directly for the current application, exemptions, fees, site-evaluation requirements and inspection steps before work begins.
What soil types are in Vermilion Parish and how do they affect septic systems?
Contact the county health department for soil evaluation requirements.
How often should I pump my septic tank in Vermilion Parish?
The EPA recommends pumping your septic tank every 3-5 years for a typical household. The exact frequency depends on tank size, household size, and water usage. A 1,000-gallon tank serving a family of 4 should generally be pumped every 3 years. With approximately 5,506 septic systems in Vermilion Parish, there are many local providers offering regular pumping services.
How long does a septic system last in Vermilion Parish?
A well-maintained septic system in Vermilion Parish typically lasts 25-30 years, though some components may need attention sooner. The concrete septic tank itself can last 40+ years, while the drainfield — the most critical and expensive component — usually lasts 15-25 years depending on soil conditions. Regular pumping every 3-5 years and avoiding excess water usage are the two most effective ways to extend system life.

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Quick Facts

Population57,359
Est. Septic Homes5,506
Avg Pumping Cost$400

Common Septic Services

Pumping: $300-$550
Inspection: $200-$400
Repair: $650-$4,600
Installation: $5,300-$10,650

Data last updated: 2026-08-26