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Larimer County, CO Noise Ordinances: Quiet Hours (2026)

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

Quiet hours in Larimer County, CO, also called the noise ordinance, nighttime noise rules, or residential quiet time, define the hours during which excessive noise is prohibited.

Key Facts

County night limit
50 db(A), 7 p.m.–7 a.m.
County day limit
55 db(A), 7 a.m.–7 p.m.
Fort Collins night
50 dB(A), 8 p.m.–7 a.m.
Short spike allowed
+10 db(A) up to 15 min
First fine
$30 (county)

Summary

Nighttime quiet runs 7:00 p.m.–7:00 a.m. in unincorporated Larimer County (limit drops to 50 db(A) residential) and 8:00 p.m.–7:00 a.m. in Fort Collins (50 dB(A) residential). Daytime residential ceilings are 55 db(A).

City-specific rules exist: Fort Collins has its own quiet hours rules that differ from Larimer County's county-level regulations. If you live in Fort Collins, check the city-specific page instead.

8:00 p.m. to 7:00 a.m. 50. [Residential/mixed-use zones: 7:00 a.m. to 8:00 p.m. 55.] A noise... at a level which is in excess of the dB(A) established for the time period and zoning districts listed in this Section is hereby declared to be a noise disturbance and is unlawful.

Source: City of LarimerView official code

Full Breakdown

In unincorporated Larimer County, Ordinance No. 97-03 sets residential limits of 55 db(A) from 7:00 a.m.–7:00 p.m. and 50 db(A) from 7:00 p.m.–7:00 a.m.; daytime levels may rise 10 db(A) for up to fifteen minutes per hour. Fort Collins Municipal Code § 20-23 mirrors this with a 55 dB(A) residential cap 7:00 a.m.–8:00 p.m. and 50 dB(A) from 8:00 p.m.–7:00 a.m. Incorporated cities (Fort Collins, Loveland, Estes Park) enforce their own codes; the county rule governs only unincorporated land.

Violations & Fines

Larimer County fines escalate: $30 first violation, $60 for a second within 30 days, then $300 for each successive violation. Fort Collins issues a summons under § 20-29 / § 1-15.

Frequently Asked Questions

What are quiet hours in unincorporated Larimer County?
7:00 p.m. to 7:00 a.m., when the residential limit drops to 50 db(A). A noise can still be unreasonable during the day even under the limit.
Do the county hours apply inside Fort Collins?
No. Fort Collins enforces its own § 20-23 (residential 50 dB(A) from 8 p.m. to 7 a.m.). The county rule covers only unincorporated areas.

Sources & Official References

Other rules in Larimer County

Parking Rules: Overnight ParkingSome RestrictionsParking Rules: Street Parking LimitsSome RestrictionsConstruction HoursSome RestrictionsDecibel LimitsSome RestrictionsAmplified Music & Outdoor SoundSome RestrictionsLeaf Blower RulesSome RestrictionsVehicle NoiseSome RestrictionsAircraft NoiseSome RestrictionsParking Rules: Loading ZonesSome RestrictionsParking Rules: EV ChargingSome RestrictionsParking Rules: Commercial & Oversized VehiclesSome RestrictionsParking Rules: Driveway RulesSome Restrictions

All Larimer County rules

How Larimer County compares: Cities with the Strictest Noise Ordinances·Compare Larimer County to another location·View the Colorado noise ordinances overview

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Quiet Hours in Cities Across Larimer County

Fort Collins, COLoveland, CO