Backyard Chicken Laws in Missouri
Summary of state-level and major-city rules for keeping hens, roosters, and small backyard flocks in Missouri. Updated 2026.
Hens allowed
Yes
Roosters allowed
Restricted in St Louis, Kansas City limits
Typical flock limit
St Louis: up to 8 hens per lot with permit
Permit required
Local permit common
What makes Missouri different
Right to Farm amendment (Article I, Section 35) protects agricultural use.
Official sources
Verify locally before you buy birds
This is a summary. City, county, and HOA rules usually override state guidance. Check your local zoning office, health department, and any HOA covenants before adding hens or roosters to your property.