King County Water District #90
15606 SE 128th Street
Renton, WA 98059
425-255-9600 Office
Contact via E-mail
Open 8:00am - 4:30pm Monday - Friday

Bill Estimator

Wondering what your bill will cost?

Usage Calculator


Use this bill estimator to get an idea. Simply enter your current usage and hit the "Calculate Rate" button to get your estimate.

How do you calculate your current usage?

Collect your current meter read from your meter and subtract the meter read from your most recent bill.
Please Note: New style meters are solar powered and may take a flashlight to get them to "wake up".

Summer Surcharge

This bill estimator does not automatically include the Summer Surcharge of $1.00 per CCF applied to water bills in June, July, September, and August. While this fee is not charged on the first five (5) CCF's, it is applied to all CCF's after that. Just tick the box labeled "Include Summer Surcharge" to include that rate.

This rate calculator is only valid for residential customers with a 5/8" or 1" meter.

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