How Much Does Septic Tank Pumping Cost in Illinois?
Illinois pricing is near the national average. Updated for 2026.
Septic Tank Pumping Pricing in Illinois
In Illinois, the average cost for septic tank pumping is $420 per pumping, which is 5% higher than the national average of $400. Most Illinois residents pay between $263 and $630.
Illinois has costs that track closely with the national average, though prices can still vary between urban and rural areas within the state.
Septic tank pumping removes accumulated solids from your septic system. Regular pumping prevents backups, system failure, and costly repairs or replacement.
Illinois vs National Average
What Affects Septic Tank Pumping Cost in Illinois?
Tank Size
750 gallon: $200-$400. 1,000 gallon: $300-$500. 1,500 gallon: $400-$600. 2,000+ gallon: $500-$800
Condition
Routine pump: $250-$500. Emergency/backup: $500-$1,000+
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💡 Tips to Save on Septic Tank Pumping in Illinois
- 1.Pump every 3-5 years to avoid $10,000+ system replacement
- 2.Know where your tank and access ports are — saves the company time and you money
- 3.Don't wait for signs of failure — preventive pumping is much cheaper than emergency service
📈 Septic Tank Pumping in Illinois Cost Trends (2020–2024)
Prices have increased +17.6% over the last 5 years
| Year | National Avg | YoY Change |
|---|---|---|
| 2020 | $357 | — |
| 2021 | $372 | +4.2% |
| 2022 | $396 | +6.5% |
| 2023 | $407 | +2.8% |
| 2024 | $420 | +3.2% |
Based on national averages adjusted for annual inflation. Actual costs vary by location and project scope.
💬 What Did You Pay?
Real costs reported by homeowners for Septic Tank Pumping in Illinois
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Frequently Asked Questions
How often should I pump my septic tank?
Every 3-5 years for a family of 4 with a 1,000-gallon tank. Smaller tanks or larger households should pump more frequently.
Septic Tank Pumping Cost in Other States
Related Cost Guides for Illinois
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