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Merced County, CA Short-Term Rentals: Noise Rules (2026)

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

Key Facts

Quiet hours
10:00 p.m. to 7:00 a.m.
Governing section
Zoning Code Section 18.60.270(D)(5)
Listing disclosure required
Section 18.60.270(D)(11)(e)
Outdoor amplified sound
Banned without a use permit
First-offense fine
Up to $100 (Section 18.154.070)

Summary

Unincorporated Merced County fixes quiet hours for every short-term rental at 10:00 p.m. to 7:00 a.m. under Zoning Code Section 18.60.270(D)(5), which also ties all rental activity to General Plan noise standards. Every rental listing must disclose the quiet-hours rule to guests, and repeated noise complaints can trigger permit revocation on top of standard zoning fines.

These county ordinances apply to unincorporated areas of Merced County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

Noise. All activities associated with the short-term rental shall meet the General Plan noise standards contained below. Quiet hours shall be from 10:00 p.m. to 7:00 a.m.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: rev 4930839; v8 updated 2026-06-02).

Full Breakdown

270, which requires a discretionary Administrative Permit for every hosted or vacation rental and folds noise control into the mandatory operating standards at subsection D. , a fixed window that applies every night of the year regardless of season or event. , so the rule travels with the booking itself. Outdoor amplified sound gets a separate, tighter rule. 270(F)(3). 152 (Permit Modifications and Revocations). 070, so the Sheriff, County Code Enforcement, and the property's own designated local contact can all be pulled into a single complaint against the address.

Violations & Fines

Breaching the 10 p.m. to 7 a.m. quiet hours or the General Plan noise standard is a Zoning Code violation under Section 18.154.070(D): a first infraction draws a fine up to $100, a second within a year up to $200, and each further violation up to $500, with each day of continued noncompliance treated as a separate offense. A documented pattern of noise violations is also grounds to modify or revoke the property's Administrative Permit under Chapter 18.152.

Frequently Asked Questions

Do short-term rentals in unincorporated Merced County have set quiet hours?
Yes. Zoning Code Section 18.60.270(D)(5) fixes quiet hours from 10:00 p.m. to 7:00 a.m. for every hosted and vacation rental in the unincorporated county, and every listing advertisement must notify guests of that window under Section 18.60.270(D)(11)(e).
Can a Merced County short-term rental host play outdoor music during the day?
Outdoor amplified sound is banned outright unless a use permit authorizes it. Hosted rentals fall under Section 18.60.270(E)(3) and vacation rentals under Section 18.60.270(F)(3), so a backyard speaker or PA system needs county approval regardless of the hour.
What happens if neighbors keep complaining about noise from a Merced County rental?
Noise standards are a condition of the Administrative Permit itself, so repeated violations give the county grounds to modify or revoke the permit under Chapter 18.152, on top of Zoning Code infraction fines that climb from $100 to $500 per repeat offense under Section 18.154.070.

Sources & Official References

Other rules in Merced County

All Merced County rules

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