The average home water bill in Washington is $84 per month — that's 86% above the U.S. average of $45, the 4th most expensive of 51 states.
| Washington average | $84 per month |
|---|---|
| U.S. average | $45 per month |
| Difference | +86% (+$39/yr) |
| Rank (most expensive) | 4th of 51 |
Washington ranks 4th of 51 for water bill cost. The main reason is local water scarcity, aging infrastructure, and higher utility rates. Your own bill still depends on your home size, your usage, and which providers serve your address — so it pays to know where your state stands before you call to negotiate.
Your state's full breakdown plus the easiest ways to lower your bill. Free, no obligation.
The levers that move your bill the most: fixing leaks and running toilets; low-flow showerheads and faucet aerators; watering the lawn early or late to cut waste; a high-efficiency washer and dishwasher. Most cost little or nothing to start, and they stack — knock out two or three and the monthly savings add up fast.
Get the Free Washington Water Bill Report →The average home water bill in Washington is about $84 per month as of 2026 — 86% above the national average of $45 per month. Your actual bill depends on your home, your usage, and which providers serve your address.
Washington ranks 4th out of 51 for water bill cost. Bills run high largely because of local water scarcity, aging infrastructure, and higher utility rates.
The fastest levers: fixing leaks and running toilets, low-flow showerheads and faucet aerators, watering the lawn early or late to cut waste. Most of these cost little or nothing to start.