Animal Ordinances in O'Fallon, IL (2026)
1 verified animal ordinances for O'Fallon, Illinois, sourced directly from the municipal code and official government pages.
Verified from official government sources
Chickens & Livestock
O'Fallon Code Section 94.01(M) lists 'any swine, goats, horses or chickens' as a nuisance animal when kept inside city limits unless on land zoned Agricultural District or Rural Residential District. Backyard chickens are therefore prohibited in standard single-family residential zones. Existing-owner exceptions and city-council reform proposals have been discussed but the prohibition remains in force.
O'Fallon, IL Chickens & Livestock
Heavy RestrictionsLooking for St. Clair County county-wide rules?
County ordinances apply to unincorporated areas and may supplement O'Fallon city rules.
Animal Ordinances in St. Clair County →