Columbia, SC Noise Ordinances: Quiet Hours (2026)
Quiet hours in Columbia, SC, also called the noise ordinance, nighttime noise rules, or residential quiet time, define the hours during which excessive noise is prohibited.
Key Facts
- Governing section
- City Code § 8-93(c)
- Daytime limit
- 55 dB(A), 6 a.m.-11 p.m.
- Nighttime limit
- 50 dB(A), 11 p.m.-6 a.m.
- Measured from
- 10 feet from property line
- Impulsive noise
- +5 dB(A) over limit unlawful
Summary
Columbia cuts its noise limit at night: under City Code Sec. 8-93(c), sound from any non-vehicular source in a residential area cannot exceed 55 dB(A) between 6:00 a.m. and 11:00 p.m., dropping to 50 dB(A) from 11:00 p.m. to 6:00 a.m. the next day. The lower nighttime ceiling functions as the city's general quiet-hours standard for stationary noise sources.
(c)Sound from a non-vehicular source located in a residential area, shall not exceed the following limits: 6:00 a.m. until 11:00 p.m. of the same day: 55 dB (A) 11:00 p.m. until 6:00 a.m. of the following day: 50 dB (A)
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 35).
Full Breakdown
The nighttime standard is measured under Sec. 8-92: sound from a non-vehicular source is read on a sound level meter ten feet from the property line where the noise originates (or ten feet from the property line or 50 feet from the source, whichever is less, on government-owned property), using the "A" weighting scale, with wind at or below five miles per hour or 25 miles per hour with a windscreen, and accounting for ambient noise at the time of measurement. Sec. 8-93(e) adds that periodic, impulsive, or shrill noises are unlawful if they run five dB(A) or more above the applicable limit, so a source right at 50 dB(A) overnight can still violate the code if it is a repetitive banging or shrieking sound.
dwelling-disturbance rule for amplified sound in Sec. ban on loud building operations in Sec. 8-65. Several activities are carved out of the nighttime limit under Sec. ).
Violations & Fines
A stationary noise source that reads above 50 dB(A) between 11:00 p.m. and 6:00 a.m. in a residential area, or above the five dB(A) added-penalty threshold in Sec. 8-93(e) for shrill or repetitive noise, is a direct violation of the noise pollution article and can be cited using a sound level meter reading alone, without needing a separate finding of general unreasonableness. Enforcement runs through municipal court under the citywide penalty provision, Sec. 1-5, with each violation treated as its own offense.
Frequently Asked Questions
What are Columbia's quiet hours?
Does a single loud bang at night break the noise rule?
Are lawnmowers exempt from the nighttime limit?
Sources & Official References
Other rules in Columbia
How Columbia compares: Cities with the Strictest Noise Ordinances·Compare Columbia to another location·View the South Carolina noise ordinances overview
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