Noise Ordinances in Johnson County, IA (2026)

3 county-level rules, plus city-specific rules for 1 city in Johnson County, Iowa.

Verified from official government sources

Note: These county rules apply to unincorporated areas of Johnson County. If you live within an incorporated city, that city's own rules apply: see the city list below.

Quiet Hours

Iowa City enforces its noise ordinance and a well-known disorderly house rule aimed at loud student rentals near campus. Overnight noise disturbances draw police citations, and repeat nuisance parties carry civil penalties of $750 or more.

Iowa City Quiet Hours & Disorderly House Rules

Heavy Restrictions

Iowa Code 723.4(1)(b)

Makes loud and raucous noise in the vicinity of any residence or public building which intentionally or recklessly causes unreasonable distress to the occupants thereof.

Full ordinance details →Official source ↗

Amplified Music & Outdoor Sound

Iowa City does not allow amplified sound in residential areas except at churches and schools, and its disorderly house ordinance targets loud parties at student rentals. Outdoor events need city approval with noise conditions.

Iowa City Amplified Sound & Party Noise Rules

Heavy Restrictions

Iowa Code 723.4(1)(b)

Makes loud and raucous noise in the vicinity of any residence or public building which intentionally or recklessly causes unreasonable distress to the occupants thereof.

Full ordinance details →Official source ↗

Decibel Limits

Johnson County's zoning code sets numeric decibel caps only for specific conditional uses, not general residential noise. Battery energy storage systems are capped at 60 dBA and commercial wind turbines at 45 dBA, both measured at the nearest non-participating residence or property line.

Johnson County Noise Limits for Energy Facilities

Some Restrictions

Johnson County UDO §§ 8:1.24(F)(7) & 8:5.12(A)

7. Noise. The 1-hour average noise generated from the battery energy storage systems, components, and associated ancillary equipment shall not exceed a noise level of sixty decibels (60 dBA) as measured at the outside wall of any non-participating residence or occupied community building or the property line. Applicants may submit equipment and component manufacturer noise ratings at the time o...

Full ordinance details →Official source ↗

Noise Ordinances by City in Johnson County

1 cities in Johnson County have their own noise ordinances rules. Each link goes to that city's dedicated page with code citations.

Iowa CityPop. 74,828

5 verified rules • Amplified Music & Outdoor Sound, Barking Dogs

All Johnson County ordinances

See every category we cover for Johnson County: parking, noise, fences, fires, animals, pools, and more.

Johnson County Ordinance Hub →