Outdoor Lighting in Twin Falls County, ID (2026)
2 rules for unincorporated Twin Falls County, Idaho.
Verified from official government sources
Dark Sky Rules
Twin Falls County has no county-wide dark-sky ordinance, but in the Airport Overlay (AP) zone around county airports, § 8-6H-4 bans pulsating, flashing or rotating attention-getting lighting outright and requires floodlights and spotlights to be shielded so no light shines upward past the fixture's own level.
Twin Falls County Airport Zone Lighting Rules
Light RestrictionsTwin Falls County Code § 8-6H-4
A. Lighting: 1. Any pulsating, flashing, rotating, oscillating, or other type of lighting intended as an attention getting device is prohibited. 2. Floodlights, spotlights, or other lighting device shall be so arranged or shielded as not to cast illumination in an upward direction above an imaginary line extended from the light source parallel to the grounds. B. Glare: Glare producing b...
Light Trespass & Shielding
In unincorporated Twin Falls County, small animal feeding operations must design outdoor lighting to eliminate direct glare onto neighboring properties, keeping every fixture's light contained within the facility's own property boundaries.
Twin Falls County Outdoor Lighting Glare Rule
Some RestrictionsTwin Falls County Code § 8-17-5
E. Evidence certified by a qualified or licensed professional that all outdoor lighting will be fully shielded and maintained to eliminate direct glare from properties outside the AFO and to keep direct lighting within the property boundaries. Direct glare is caused when the lamp can be seen in the fixture as opposed to being able to see the light from the fixture. The lighting system shall b...
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