Many homeowners focus on their water bill but overlook one major component: sewer charges.
In many U.S. cities, sewer fees account for 40–60% of the total water bill.
So how much does sewer service actually cost?
Let’s break it down.
Quick Answer
The average sewer bill in the U.S. ranges between:
$30 and $70 per month
In some metropolitan areas, sewer charges alone can exceed $100 per month.
Sewer fees are often combined with water charges, making it difficult to see the breakdown.
What Is a Sewer Bill?
Sewer charges cover:
- Wastewater treatment
- Infrastructure maintenance
- Treatment plant operation
- Stormwater management
- Environmental compliance
Sewer systems are expensive to maintain, which explains why costs continue to rise.
How Sewer Charges Are Calculated
Most utilities calculate sewer charges based on:
Your total water usage.
If you use 4,000 gallons per month, your sewer fee may be calculated using that same volume.
Some municipalities use winter water usage as a baseline to estimate sewer charges.
Why Sewer Costs Are Increasing
Several factors drive higher sewer fees:
- Aging infrastructure
- Environmental regulations
- Treatment technology upgrades
- Population growth
- Federal compliance requirements
Unlike electricity, sewer systems require constant maintenance and upgrades.
Sewer Cost by Property Type
Apartment:
$20–$50 per month
Single-family home:
$40–$80 per month
Large household with irrigation:
$60–$100+ per month
In some cities, sewer costs exceed water costs.
Sewer vs Water: What’s the Difference?
Water bill covers:
Clean water supply.
Sewer bill covers:
Wastewater removal and treatment.
Both are typically tied to usage, but rates differ.
(👉 Average Water Bill in the U.S. (2026 State-by-State Breakdown))
How to Reduce Sewer Costs
Because sewer charges are tied to water usage:
- Fix leaks
- Reduce irrigation
- Install efficient toilets
- Monitor monthly usage
Lower water consumption directly reduces sewer charges.
(👉 Why Is My Water Bill So High? (Common Causes & Fixes))
Frequently Asked Questions
Why is my sewer bill higher than my water bill?
Some cities charge higher rates for wastewater treatment than for water supply.
Can I reduce sewer charges?
Yes, by reducing overall water usage.
Is sewer included in property taxes?
In some municipalities, yes. In others, it is billed separately.
Why do sewer bills keep increasing?
Infrastructure upgrades and regulatory requirements increase costs over time.
Final Thoughts
The average sewer bill in the U.S. ranges between $30 and $70 per month, but local rates can vary significantly.
Because sewer charges are often tied directly to water usage, reducing consumption can lower both bills at once.
For a full breakdown of household utility expenses, explore our complete utility cost guide.
