Septic Systems in Lonoke County, AR

Regulations, costs, soil data & local providers

Pop. 74,015 ~28% on septic ~8,290 septic homes

Septic pumping in Lonoke County, Arkansas costs $250-$500 (avg $350). A new septic system installation costs $4,750-$9,500. Approximately 8,290 homes in this county use septic systems.

Septic System Costs in Lonoke County

ServiceLowAverageHigh
Pumping / Cleaning$250$350$500
Routine Inspection$200$250$350
Real Estate Inspection$300$450$650
Minor Repair$600$850$4,200
Conventional Installation$4,750$6,800$9,500
Aerobic System Installation$8,900$12,750$17,850
Drainfield Replacement$4,750$6,800$9,500
Perc Test$700$1,000$1,400

Cost estimates based on regional market data for Lonoke County, Arkansas. Actual costs depend on system type, site conditions, and provider.

Groundwater & Water Table in Lonoke County

Monitoring Wells
117
Avg Depth to Water
95 ft
Median Depth
101.5 ft
Shallowest Recorded
1.9 ft Shallow Risk

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

Source: USGS National Water Information System. Based on 1544 measurements from monitoring wells.

Septic Regulations & Permits in Lonoke County

State Regulatory Body
Arkansas 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 Lonoke County health department for current permit requirements, fees, and approved system types.

Septic System FAQ for Lonoke County

How much does septic pumping cost in Lonoke County?
Septic pumping in Lonoke County, Arkansas typically costs between $250 and $500, with an average of $350. 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 Lonoke County?
A conventional septic system installation in Lonoke County typically costs $4,750-$9,500. An aerobic treatment unit (ATU) costs $8,900-$17,850. Costs include the tank, drainfield, permits, and labor.
Do I need a permit for a septic system in Lonoke County?
Yes. Virtually all counties in Arkansas 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 Lonoke County health department for current requirements and fees.
What soil types are in Lonoke County 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 Lonoke County?
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 8,290 septic systems in Lonoke County, there are many local providers offering regular pumping services.
How long does a septic system last in Lonoke County?
A well-maintained septic system in Lonoke County 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

Population74,015
Est. Septic Homes8,290
Avg Pumping Cost$350

Common Septic Services

Pumping: $250-$500
Inspection: $200-$350
Repair: $600-$4,200
Installation: $4,750-$9,500

Data last updated: 2026-04-13