Septic Systems in Jefferson Parish, LA

Regulations, costs, soil data & local providers

Pop. 440,781 ~12% on septic ~21,157 septic homes Very poorly drained soil

Septic pumping in Jefferson Parish, Louisiana costs $300-$550 (avg $400). A new septic system installation costs $5,600-$11,200. USDA soil data rates 0% of county soils as suitable for septic absorption fields. Approximately 21,157 homes in this county use septic systems.

Septic System Costs in Jefferson Parish

ServiceLowAverageHigh
Pumping / Cleaning$300$400$550
Routine Inspection$200$300$400
Real Estate Inspection$400$550$750
Minor Repair$700$1,000$4,900
Conventional Installation$5,600$8,000$11,200
Aerobic System Installation$10,500$15,000$21,000
Drainfield Replacement$5,600$8,000$11,200
Perc Test$850$1,200$1,700

Cost estimates based on regional market data for Jefferson Parish, Louisiana. Actual costs depend on system type, site conditions, and provider.

Soil & Septic Suitability in Jefferson Parish

Drainage Class
Very poorly drained
Hydrologic Group
D
Unique Soil Types
27

Dominant Soil Types

Soil SeriesCoverageDrainageHydro Group
Cancienne 292 Somewhat poorly drained C
Schriever 234 Poorly drained D
Allemands 209 Poorly drained C
Felicity 196 Somewhat poorly drained A
Kenner 193 Very poorly drained D

Septic Tank Absorption Field Suitability

USDA NRCS rates soil suitability for septic absorption fields across this county:

Not Limited (Good)0%
Somewhat Limited0%
Very Limited100%

Overall rating: Very limited

Source: USDA NRCS Soil Survey Geographic Database (SSURGO)

Groundwater & Water Table in Jefferson Parish

Monitoring Wells
5
Avg Depth to Water
11.5 ft
Median Depth
6.6 ft
Shallowest Recorded
-9.5 ft Shallow Risk

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

Source: USGS National Water Information System. Based on 103 measurements from monitoring wells.

Septic Regulations & Permits in Jefferson Parish

State Regulatory Body
Louisiana Department of Health/Environment
Inspection Required for Home Sale
No / Varies
Nitrogen Reduction Areas
No
Advanced Treatment Required
No

Contact county health department for specific requirements.

Contact the Jefferson Parish health department for current permit requirements, fees, and approved system types.

Septic System FAQ for Jefferson Parish

How much does septic pumping cost in Jefferson Parish?
Septic pumping in Jefferson Parish, Louisiana typically costs between $300 and $550, with an average of $400. Costs vary by tank size (1,000-1,500 gallons is typical), ease of access, distance from the pumping company, and how full the tank is. Most homeowners should pump their tank every 3-5 years.
How much does a new septic system cost in Jefferson Parish?
A conventional septic system installation in Jefferson Parish typically costs $5,600-$11,200. An aerobic treatment unit (ATU) costs $10,500-$21,000. Given the predominantly very poorly drained soils in this area, some sites may require alternative system types. Costs include the tank, drainfield, permits, and labor.
Do I need a permit for a septic system in Jefferson Parish?
Yes. Virtually all counties in Louisiana require a permit before installing, repairing, or replacing a septic system. The permit process typically involves a soil evaluation or percolation test, system design by a licensed professional, application to the county health department, and one or more inspections during installation. Contact the Jefferson Parish health department for current requirements and fees.
What soil types are in Jefferson Parish and how do they affect septic systems?
Jefferson Parish has predominantly Cancienne, Schriever, Allemands soils. The dominant drainage class is Very poorly drained with hydrologic group D. The USDA rates 0% of surveyed soils as "Not Limited" for septic absorption fields, 0% as "Somewhat Limited", and 100% as "Very Limited".
How often should I pump my septic tank in Jefferson 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 21,157 septic systems in Jefferson Parish, there are many local providers offering regular pumping services.
Can I install a conventional septic system in Jefferson Parish?
It depends on your specific site. USDA soil data shows that 100% of soils in Jefferson Parish are rated "Very Limited" for septic absorption fields, while only 0% are "Not Limited." This means many properties will require alternative systems such as mound systems, pressure distribution systems, or aerobic treatment units. A percolation test ($850-$1700) and soil evaluation are required before the county will approve a system design.
How long does a septic system last in Jefferson Parish?
A well-maintained septic system in Jefferson 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 (Jefferson Parish has predominantly very poorly drained soils). 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

Population440,781
Est. Septic Homes21,157
Avg Pumping Cost$400
Drainage ClassVery poorly drained
Septic SuitabilityVery limited

Common Septic Services

Pumping: $300-$550
Inspection: $200-$400
Repair: $700-$4,900
Installation: $5,600-$11,200

Data last updated: 2026-04-13