Water and sewer service is a monthly household utility expense that varies by usage, local utility rates, and household size.
The average U.S. water bill is approximately $70–$100/month for a single-family home, including both water supply and wastewater (sewer) charges.
Water bills typically cover water supply, sewage processing, and sometimes stormwater fees.
Usage-based billing (the norm) means higher water use results in higher bills. This guide covers average water bills by household size, what drives water costs, and how to reduce usage. For a complete utility budget, also review the average electric bill and average mortgage payment.
Average Monthly Water Bill
According to the U.S. Environmental Protection Agency (EPA), the average American family uses approximately 300 gallons of water per day.
Monthly water and sewer bills average $70–$100 for a typical 2-person household.
Larger households use more: a family of 4 using 400–500 gallons/day may pay $90–$130/month.
Bills vary significantly by city and region — water-scarce Western cities often have higher rates than water-rich Eastern utilities.
California, for example, has seen significant water rate increases — see our guide on cost of living in California for the full utility cost picture.
Combined with the average electric bill, total utility costs for most households run $200–$350/month.
What's Included in Your Water Bill
Most water bills include: water supply charges (per gallon or CCF — hundred cubic feet), wastewater/sewer charges (often based on water usage, as most water used returns to the sewer), and sometimes stormwater fees.
Some utilities charge a flat base fee plus a variable usage rate.
Understanding your rate structure helps identify savings opportunities.
If you own your home, water costs are part of the total housing expense — see our guide on what percentage of income should go to housing costs for a complete framework. Renters should factor utilities into their total costs when reviewing how much to spend on rent.
How to Lower Your Water Bill
Fix leaks — a dripping faucet can waste 3,000+ gallons/year. Install WaterSense-labeled fixtures (EPA-certified for efficiency). Run dishwashers and washing machines only when full.
Reduce outdoor irrigation (outdoor use accounts for 30%+ of water in warm climates). Take shorter showers. Install a low-flow showerhead.
These measures can reduce water usage 10–30%. Savings from reduced utility bills, redirected toward an emergency fund or Roth IRA, compound meaningfully over time. The cost of living in Texas and cost of living in Florida guides include average utility costs by state for comparison.
Frequently Asked Questions
What is the average water bill per month?
The average U.S. residential water and sewer bill is approximately $70–$100/month for a typical household, though this varies significantly by location and usage. Combined with the average electric bill of $135–$150/month, basic utility costs alone can total $200–$250/month for most households.
Why is my water bill so high?
High water bills are often caused by leaks (toilet leaks can waste 200 gallons/day), outdoor irrigation, high household usage, or rate increases by the utility.
How much water does the average person use per day?
The average American uses approximately 80–100 gallons of water per day for indoor use (showering, toilet flushing, laundry, cooking, drinking), per EPA data.
What is a high water bill per month?
A water bill over $100–$120/month for a single-family home is above average and may indicate a leak or unusually high usage.
Over $150/month warrants investigation.
If utilities are consuming an outsized share of your income, review how much of your paycheck should go to housing and utilities to check against recommended guidelines.
Are water bills based on usage?
Yes — most U.S. water utilities bill based on actual metered usage (per gallon or per CCF). Many utilities also charge a fixed base fee regardless of usage.
Sources & References
- U.S. Environmental Protection Agency — WaterSense water efficiency — https://www.epa.gov/watersense/
- U.S. Environmental Protection Agency — residential water use statistics — https://www.epa.gov/watersense/statistics-and-facts
- U.S. Geological Survey — water use in the United States — https://www.usgs.gov/special-topics/water-science-school/science/water-qa-how-much-water-do-i-use-home-each-day
- Consumer Financial Protection Bureau — utility bill assistance programs — https://www.consumerfinance.gov/
Last updated: April 27, 2026