Bostonia, CA Noise Ordinances: Quiet Hours (2026)
Quiet hours in Bostonia, CA, also called the noise ordinance, nighttime noise rules, or residential quiet time, define the hours during which excessive noise is prohibited.
Key Facts
- Governing authority
- San Diego County (unincorporated)
- Residential day limit
- 50 dBA, 7 a.m.-10 p.m.
- Residential night limit
- 45 dBA, 10 p.m.-7 a.m.
- Measured at
- The property line
- Catch-all rule
- Sec. 36.414 disturbing noise
Summary
Bostonia is an unincorporated community, so its noise rules are San Diego County's. In most residential zones the one-hour average sound limit at your property line is 50 dBA daytime (7 a.m.-10 p.m.) and 45 dBA at night (10 p.m.-7 a.m.), so nighttime is the effective quiet period.
Except as provided in section 36.409 of this chapter, it shall be unlawful for any person to cause or allow the creation of any noise, which exceeds the one-hour average sound level limits in Table 36.404, when the one-hour average sound level is measured at the property line of the property on which the noise is produced or at any location on a property that is receiving the noise.
Full Breakdown
Bostonia has no city government; the County of San Diego regulates noise here under the Code of Regulatory Ordinances, Title 3, Division 6, Chapter 4. Section 36.404 sets one-hour average sound-level limits measured at the property line. Low-density residential zones (RS, RD, RR, RMH, and similar) are capped at 50 dBA from 7 a.m. to 10 p.m. and 45 dBA from 10 p.m. to 7 a.m. Denser residential zones allow 55 dBA day / 50 dBA night. Separately, Section 36.414 makes any 'disturbing, excessive or offensive noise' unlawful at any hour, considering time of day, duration, and proximity to sleeping areas. Call the Sheriff for after-hours disturbances.
Violations & Fines
Noise-ordinance violations are enforced by the Sheriff and County code officers and are generally prosecuted as misdemeanors; officers weigh level, duration, time of day, and proximity to where people sleep under Section 36.414.
Frequently Asked Questions
Does Bostonia have its own quiet hours?
What counts as too loud at night?
Sources & Official References
Other rules in Bostonia
How Bostonia compares: Cities with the Strictest Noise Ordinances·California rules heatmap·Compare Bostonia to another location·View the California noise ordinances overview
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Quiet Hours in Nearby Cities
How other cities in San Diego County handle quiet hours.