Sioux Falls, SD Noise Ordinances: Decibel Limits (2026)

City Code § 93.003 sets a maximum 90th-percentile sound pressure level (L90) for stationary noise sources by receiving land use district. Industrial-zoned receiving property is capped at 75 dB(A) at all times; commercial or business receiving property is capped at 65 dB(A) at all times. Where a noise source is measured across more than one land use category, the limit of the more restrictive category governs at the boundary. Pure-tone, cyclically varying, or repetitive impulsive sound must meet a 5 dB(A)-lower limit. The health department has joint enforcement authority with law enforcement, and operators can apply to the health director for a sound permit granting relief from these limits.