Ramsey County, MN Noise Ordinances: Decibel Limits (2026)
Key Facts
- State standard
- Minn. R. 7030.0040
- Industrial (Class 3)
- L50 75 / L10 80 dBA
- Commercial (Class 2)
- L50 65 / L10 70 dBA
- St. Paul industrial
- 80 dBA all hours
- County rule
- None: state + city
Summary
Minnesota's statewide standards cap industrial noise: heavy-industrial areas (Class 3) at L50 75 / L10 80 dBA day and night (Minn. R. 7030.0040). St. Paul mirrors this at 80 dBA for industrial districts. The county sets no separate limit.
Noise Area Classification 3 — daytime L50 75, L10 80; nighttime L50 75, L10 80.
Full Breakdown
Industrial and stationary-source noise is capped by Minnesota's statewide standards (Minn. R. 7030.0040), administered by the MPCA and enforced locally. Noise Area Classification 3 (industrial) allows L50 75 / L10 80 dBA day and night. Classification 2 (commercial) is 65/70 dBA. St. Paul applies matching land-use limits, 80 dBA in heavy-industrial districts, 70 dBA in business districts, measured at the nearest point of human activity. Ramsey County does not set its own industrial-noise ordinance; enforcement runs through the city and, for significant sources, the MPCA.
Violations & Fines
Exceeding the Class 3 limit is enforceable by the city and MPCA; remedies include citations, abatement orders, and, for permitted facilities, permit conditions.
Frequently Asked Questions
What is the industrial noise limit near St. Paul?
Does Ramsey County enforce factory noise?
Sources & Official References
Other rules in Ramsey County
Compare Ramsey County to another location·View the Minnesota noise ordinances overview
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