DuPage County, IL Public Conduct: Loud Party Ordinance (2026)
Key Facts
- Who's liable
- Occupant or occupant's agent
- Standard
- Knowingly permits the noise
- Applies
- Unincorporated DuPage County only
- Penalty
- Same as person creating the noise
- Related section
- Sec. 26-12 loud/raucous noise ban
Summary
In unincorporated DuPage County, the property occupant who knowingly allows a loud party or noisy gathering is on the hook for the same fine as whoever is actually making the racket.
The occupant or the agent of the occupant of the property, who shall knowingly permit another person to use an instrument or sound amplification device or otherwise conduct an activity in violation of this chapter, shall be deemed responsible for the noise or activity to the same extent as the person creating the noise or conducting the activity and shall be subject to the same penalty.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 14 Update 1).
Full Breakdown
County Code section 26-15 makes an occupant (or the occupant's agent) who knowingly permits another person to run a sound amplification device or instrument, or otherwise conduct a noisy activity in violation of the county's loud-and-raucous-noise article, just as responsible as the person actually causing the noise. That means a homeowner who lets a party continue after being warned faces the identical penalty as the guest playing the music. The underlying noise offense (Sec. 26-12) targets sound audible over 100 feet between 10:00 p.m. and 7:00 a.m. without a county permit.
Violations & Fines
Same fine as the underlying noise violation: $100-$1,000 per section 26-12/26-13, escalating to $500-$1,000 for a repeat offense within one year; each day is a separate violation.
Frequently Asked Questions
Can I be fined for a party even if I'm not the one being loud?
Does this apply inside towns like Naperville or Wheaton?
Sources & Official References
Other rules in DuPage County
Compare DuPage County to another location·View the Illinois public conduct overview
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