Livestock: Ontario vs Rialto
How do livestock rules compare between Ontario, CA and Rialto, CA?
Rialto has fewer restrictions than Ontario.
Ontario, CA
San Bernardino County
Ontario restricts livestock to agricultural and equine zones in the Development Code. Most livestock activity is in Ontario Ranch (New Model Colony). Standard residential zones prohibit cattle, goats, sheep, and horses.
View full Ontario rules βRialto, CA
San Bernardino County
Livestock (cattle, horses, sheep, goats, swine, llamas) are permitted in Agricultural (AG) and Rural Living (RL) zones of unincorporated San Bernardino County. Animal unit counts scale with lot size; setbacks for corrals and barns run 40-100 feet. California Right to Farm Act (Civil Code 3482.5) protects existing operations from nuisance suits.
View full Rialto rules βKey Facts Comparison
| Fact | Ontario | Rialto |
|---|---|---|
| Allowed Zones | Ag and equine overlay only | AG, RC, RL |
| Legacy Area | Ontario Ranch New Model Colony | - |
| Residential | Cattle horses goats sheep prohibited | - |
| Swine | Conditional-use only | AG zones only |
| Slaughter | Residential slaughter prohibited | - |
| Density | - | 1 AU / 0.5 acre typical |
| Protection | - | Civil Code 3482.5 RTF |
Highlighted rows indicate differences between cities.
Ontario FAQ
Can I keep a horse in my Ontario backyard?
Only on parcels in the equine overlay or agricultural zones, primarily legacy parcels in Ontario Ranch. Standard residential lots do not permit horses.
Is a potbelly pig considered livestock?
Potbelly pigs are regulated separately and are often treated as pets in limited numbers, but check with Ontario Planning before acquiring one because restrictions are stricter than dogs and cats.
Rialto FAQ
Can I keep horses on a 1-acre parcel in unincorporated San Bernardino County?
In most AG and RL zones, yes. Typical density is 1 animal unit per half-acre, so a 1-acre lot can generally support 2 horses with compliant corrals and setbacks. Check specific parcel zoning with Land Use Services.
Does the Right to Farm Act protect me from neighbor complaints?
California Civil Code 3482.5 protects agricultural operations established at least 3 years before a complainant moved in from nuisance suits about normal farm sights, sounds, and smells. It does not protect new operations or operations violating other laws like zoning or water quality.
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