Short-term-rental guests in unincorporated Benton County follow the same rules as everyone: WAC 173-60 property-line limits and the BCC 6A.15 nuisance standard, with a 45 dBA ceiling after 10 p.m.
The county has no STR-specific noise ordinance because it has no STR ordinance at all, so a loud vacation rental is handled like any other disturbance. WAC 173-60 caps residential receiving property at 55 dBA daytime and 45 dBA from 10 p.m. to 7 a.m., and BCC 6A.15 lets deputies treat persistent noise as a public nuisance. Wine-country hosts around Red Mountain and Prosser often add contractual quiet hours and occupancy caps, since the practical enforcement path is the Sheriff plus guest reviews rather than a permit the county could pull.
Guests or hosts face Sheriff response and public-nuisance enforcement under BCC 6A.15; measured noise over WAC 173-60 limits is separately actionable. There's no county STR permit to suspend.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Benton County, WA
Unincorporated Benton County does not regulate holiday lights, inflatables, or yard displays on private property, and Washington has no statewide holiday-dis...
Benton County, WA
Garage-sale signs are fine on your own property in Benton County, but directional signs staked in a road right-of-way, median, or on utility poles are prohib...
Benton County, WA
Political signs are allowed on private property throughout Benton County with no permit, protected as free speech. Signs staked in a county road or state hig...
Benton County, WA
Rental registration in Benton County depends on your city. Prosser requires a rental business license — $10 to register, $5 to renew yearly — with a safety i...
Benton County, WA
Washington requires just cause to evict. In Benton County a landlord may not end a tenancy or refuse renewal except for a reason listed in RCW 59.18.650 — no...
Benton County, WA
Since May 7, 2025, Washington caps annual rent increases statewide under HB 1217. In Benton County a landlord may raise rent no more than 7% plus CPI or 10%,...
See how Benton County's noise rules rules stack up against other locations.
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