Cannabis Regulations in Johnson County, IA (2026)

2 rules for unincorporated 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.

Home Cultivation

Growing cannabis at home is illegal in Johnson County. Iowa has no recreational or plant-form medical marijuana, only a narrow low-THC medical cannabidiol program. Cultivating cannabis plants is a criminal offense under state law.

Johnson County Home Cannabis Cultivation Rules

Heavy Restrictions

Full ordinance details →Official source ↗

Dispensary Zoning

Recreational and plant-form marijuana dispensaries are illegal in Iowa. Only a handful of state-licensed medical cannabidiol dispensaries operate statewide under Iowa Code chapter 124E, so there is no local dispensary market to zone.

Johnson County Cannabis Dispensary Zoning

Heavy Restrictions

Full ordinance details →Official source ↗

All Johnson County ordinances

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

Johnson County Ordinance Hub →