Outdoor Lighting in Longmont, CO (2026)
1 verified outdoor lighting rules for Longmont, Colorado, sourced directly from the municipal code and official government pages.
Verified from official government sources
Dark Sky Rules
Longmont regulates outdoor lighting through Chapter 15.05 of the Land Development Code (Development Standards). The base standard caps outdoor lighting intensity at an average of 5 foot-candles, with additional rules for fueling areas, drive-up windows, ATMs, car wash bays, and business loading/service areas added in the 2014-2015 update. Longmont's outdoor lighting rebate program signals city preference for fully-shielded fixtures with a color temperature of 3000 Kelvin or less. Longmont has not adopted a stand-alone International Dark-Sky Association (IDA) ordinance.
Longmont Outdoor Lighting Standards (Title 15 Land Development Code)
Some RestrictionsLooking for Boulder County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Longmont city rules.
Outdoor Lighting in Boulder County →