Colusa County, CA Short-Term Rentals: Occupancy Limits (2026)

Colusa County does not set a single occupancy limit for all short-term rentals, because it has no STR-specific ordinance. Instead, occupancy is governed by the limits attached to each lodging use in Zoning Code Article 44-4.100. For a farmstay, Section 44-4.100.020(B) limits 'the use... to a maximum of four guest rooms for up to eight guests at any one time,' with the guest rooms required to be in the primary or secondary dwelling on-site. For a bed-and-breakfast inn, Section 44-4.100.040(1) allows 'up to a maximum of 12 guestrooms, which shall be contained within the primary and secondary dwelling units,' and an inn 'may be allowed to have two secondary dwelling units' (44-4.100.040(2)). For duck clubs and hunting/fishing clubs (44-4.100.030), density is capped at one cabin per 5 acres or two guest rooms per 5 acres on a minimum 20-acre lot, with cabins limited to two bedrooms and 1,500 square feet. The Zoning Code's definition of 'family' also limits a dwelling's standing occupancy to a single family or up to six unrelated individuals functioning as a household. Lodging facilities of five or fewer guestrooms are treated as a single-unit residential dwelling for building-code purposes (44-4.100.010(D)), while six or more guestrooms in one structure trigger additional building-code requirements. Confirm the applicable use type and its limits with Planning and Building.