Hamilton County, OH Noise Ordinances: Decibel Limits (2026)
Key Facts
- County industrial-noise rule
- None
- Cincinnati manufacturing day
- 75 dB(A)
- Cincinnati manufacturing night
- 70 dB(A)
- Township authority
- ORC 505.172
- Statutory exemptions
- Agriculture, mining, oil/gas
Summary
Hamilton County sets no industrial-noise standard. Municipal zoning codes and township resolutions govern factory and business noise. Cincinnati caps manufacturing-district noise at 75 dB(A) daytime and 70 dB(A) at night at the receiving property line.
Whoever violates any regulation or order adopted under division (B) of this section is guilty of a misdemeanor of the second degree. Fines levied and collected under this section shall be paid into the township general revenue fund.
Full Breakdown
The county does not regulate industrial or commercial noise. Cincinnati's Chapter 909 applies dB(A) limits by receiving zoning district: manufacturing-zoned property may reach 75 dB(A) daytime (7 a.m.–7 p.m.) and 70 dB(A) at night, measured Leq over six minutes at the affected boundary. Townships may adopt noise resolutions under ORC 505.172 reaching businesses and industries regardless of when they were established, though activities like agriculture, coal and surface mining, and oil and gas operations are statutorily exempt. Industrial operators should check the specific city or township standard applicable at their site.
Violations & Fines
Cincinnati industrial-noise breaches are prima facie loud-noise violations (minor misdemeanor). Township violations under ORC 505.172 are misdemeanors of the second degree, with fines paid into the township general fund.
Frequently Asked Questions
Are factory noise limits set by Hamilton County?
Can a township regulate business noise?
Sources & Official References
Other rules in Hamilton County
Compare Hamilton County to another location·View the Ohio noise ordinances overview
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