Livestock: Green Valley vs Oro Valley
How do livestock rules compare between Green Valley, AZ and Oro Valley, AZ?
Green Valley has fewer restrictions than Oro Valley.
Green Valley, AZ
Pima County
Pima County zoning permits horses, cattle, goats, sheep, and other livestock on rural parcels (GR-1 and larger). No animal-unit limit on parcels 4.13 acres or more in the GR-1 zone. Smaller rural-residential parcels in CR-3 and CR-5 zones allow limited large animals with setback requirements.
View full Green Valley rules →Oro Valley, AZ
Pima County
Oro Valley restricts livestock to rural zones (R-144, R-80) with minimum one-acre lots. Horses limited to two per acre with 50-foot setbacks from neighboring homes.
View full Oro Valley rules →Key Facts Comparison
| Fact | Green Valley | Oro Valley |
|---|---|---|
| GR-1 Zone | Livestock allowed, 1-acre minimum | - |
| 4.13+ Acres | No animal-unit limit | - |
| CR-3 Parcels | 1-2 large animals with setbacks | - |
| Open Range | ARS 3-1401 applies to unincorporated areas | - |
| Brand Registration | AZ Dept of Agriculture required | - |
| Minimum Lot | - | 1 acre for livestock |
| Horses | - | Up to 2 per acre |
| Setback | - | 50 ft from neighboring homes |
| Enforcement | - | Town code compliance + Pima County |
Highlighted rows indicate differences between cities.
Green Valley FAQ
How many horses can I keep on a 1-acre lot?
Pima County GR-1 zoning (1-acre minimum) allows horses, but animal count should be proportional to lot size. Parcels 4.13 acres or larger have no animal-unit cap. Smaller lots should maintain 40-foot setbacks from neighboring dwellings.
Is Pima County open range?
Yes. Arizona is an open-range state under ARS 3-1401. In unincorporated Pima County, livestock owners have open-range protections unless the area is designated a no-fence district.
Oro Valley FAQ
Can I keep goats in a standard Oro Valley subdivision?
Generally no. Most Oro Valley subdivisions are zoned R-36 or R-16, which do not permit livestock. Only rural and large-lot zones (R-144, R-80) allow goats and similar animals.
Does my HOA override town zoning for livestock?
HOA rules can be more restrictive than town zoning but not less. Even if zoning allows livestock, your CC&Rs may prohibit them entirely.
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