KITSAP COUNTY — Residential customers of Kitsap County’s sewer utility will pay $115.48 a month beginning in January, up $5.76 from the current $109.72 rate under the county’s adopted five-year rate plan.
The increase is about 5.25%, or $69.12 over a full year at the residential monthly rate. The county’s fall and winter sewer newsletter reminds customers that a bill spanning the change may combine 2026 and 2027 rates because billing is bimonthly.
The multifamily monthly rate rises from $89.53 to $96.47 per unit, an increase of $6.94, or about 7.75%.
The adopted schedule also increases commercial charges from 15.6 cents to 16.4 cents per cubic foot of water used, and restaurant charges from 26 cents to 28.6 cents per cubic foot. Those are different billing measures from the flat monthly residential and multifamily charges.
Qualifying customers can receive a 25% sewer-account discount under the county’s senior and disability property-tax exemption criteria. Customers who qualify through the assessor’s office should contact Utility Billing at 360-337-7127 to request the discount.
The rate plan runs through 2030, when the residential monthly charge is scheduled to reach $134.64. It covers the county utility, not every city or independent sewer provider in Kitsap.
The county says sewer fees support treatment, maintenance, replacement of aging infrastructure and debt obligations. Its utility does not receive county tax revenue.
The newsletter also reports that the Central Kitsap Treatment Plant’s solids and liquid hauled waste upgrades are expected to continue through 2030 without interrupting plant operations.
The full rate schedule and discount information are available at kitsap.gov/pw/Pages/sewer-rateplan.aspx.
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