Twin Falls County, ID Parking Rules: RV & Boat Parking (2026)

Twin Falls County Code section 8-8-6, Temporary Travel Trailer Parking, allows one occupied travel trailer to be placed on a lot in any zone in the unincorporated county outside the cities' areas of impact, but only for up to ninety days total within any calendar year. The rule sits in Title 8, the Zoning and Land Use Title enforced by the county's Zoning Administrator and Planning and Zoning Commission, and it applies regardless of the zoning district: agricultural, rural residential, residential, commercial or industrial. The ninety-day clock runs on the calendar year, not from the date the trailer arrives, so a trailer parked from November through February could straddle two separate ninety-day allowances.

Because the section only reaches an occupied travel trailer, storing an empty RV, camper or boat trailer on a residential lot is governed instead by the county's general yard and accessory-structure standards in Title 8, Chapter 9, not by this ninety-day cap. Exceeding the limit is expressly declared a misdemeanor by the section itself, and the code sends enforcement to the general penalty in section 1-4-1: a fine of up to three hundred dollars, up to six months in jail, or both, plus court costs the judge may assess.

Property owners inside a city's area of impact, such as the areas around Twin Falls, Kimberly, Buhl, Filer, Hansen, Castleford, Murtaugh or Hollister, are not covered by this county section; the applicable city's own zoning code governs travel trailer parking there under the Title 8 area-of-impact agreements. Anyone planning a longer stay should contact the Zoning Administrator before the ninety days run out, since the code sets no automatic renewal or extension for occupied trailer parking beyond the calendar-year limit.