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Williamson County, TX Noise Ordinances: Amplified Music & Outdoor Sound (2026)

Light Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Amplified music rules in Williamson County, TX, also called sound permit, PA system, or live music ordinances, set decibel limits, time-of-day restrictions, and when permits are required.

Key Facts

Governing law
Tex. Penal Code §42.01
Decibel presumption
85 dB after notice
Penalty
Class C, up to $500
Permit needed
None countywide

Summary

Amplified music that is unreasonable near a residence is disorderly conduct under Tex. Penal Code §42.01, a Class C misdemeanor up to $500. Noise is presumed unreasonable above 85 decibels after officer notice.

City-specific rules exist: Round Rock, and Cedar Park have their own amplified music & outdoor sound rules that differ from Williamson County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

For purposes of this section: ... a noise is presumed to be unreasonable if the noise exceeds a decibel level of 85 after the person making the noise receives notice from a magistrate or peace officer that the noise is a public nuisance.

Source: Texas StatutesView official code

Official source re-checked September 7, 2026: the cited page had not changed since it was quoted.

Full Breakdown

Unincorporated Williamson County has no permit for parties, bands, or outdoor speakers. State law is the enforceable standard: making unreasonable noise in or near a private residence is disorderly conduct. Critically, the statute presumes noise unreasonable once it exceeds 85 decibels after a magistrate or peace officer has notified the person it is a public nuisance, giving deputies a concrete threshold. Venues and event centers inside Georgetown or Round Rock face additional municipal sound rules.

Violations & Fines

After a deputy's notice, continued music over 85 decibels is presumptively unreasonable, supporting a Class C disorderly-conduct citation and a fine up to $500.

Frequently Asked Questions

How loud can I play music at an unincorporated Williamson County party?
There is no fixed limit until an officer responds. After notice that it is a nuisance, music exceeding 85 decibels is presumed unreasonable and citable under Penal Code §42.01.
Do I need a permit for a live band on my property?
No county permit exists for outdoor music on unincorporated land. Keep volume reasonable; deputies can cite under disorderly conduct if neighbors are disturbed.

Sources & Official References

Other rules in Williamson County

Quiet HoursLight RestrictionsConstruction HoursFew RestrictionsAnimal Ordinances: Dog Leash LawsFew RestrictionsAnimal Ordinances: Chickens & LivestockFew RestrictionsBarking DogsLight RestrictionsAnimal Ordinances: Exotic PetsLight RestrictionsAnimal Ordinances: Breed RestrictionsFew RestrictionsLandscaping Rules: Artificial TurfFew RestrictionsLandscaping Rules: Native PlantsFew Restrictions

All Williamson County rules

Texas rules heatmap·Compare Williamson County to another location·View the Texas noise ordinances overview

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Amplified Music & Outdoor Sound in Cities Across Williamson County

Round Rock, TXCedar Park, TX