Livestock: Green Valley vs Tucson
How do livestock rules compare between Green Valley, AZ and Tucson, AZ?
Green Valley has fewer restrictions than Tucson.
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 →Tucson, AZ
Pima County
Tucson zoning allows limited livestock in suburban ranch zones SR and specified residential zones with minimum lot sizes. Horses require at least 36,000 square feet in Tucson zones that permit them, with one horse per 36,000 square feet of useable pasture. Cattle, swine, and sheep are generally limited to unincorporated Pima County.
View full Tucson rules →Key Facts Comparison
| Fact | Green Valley | Tucson |
|---|---|---|
| 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 | - |
| Horses | - | SR zone, 36,000 sq ft minimum per animal |
| Cattle and Swine | - | Unincorporated county only |
| Standard Zones | - | Livestock prohibited |
| Dwarf Goats and Rabbits | - | Allowed via urban ag |
| Nuisance Authority | - | Pima Health |
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.
Tucson FAQ
Can I keep a horse on my Tucson property?
Only in the SR suburban ranch zone with at least 36,000 square feet per horse. Standard residential zones do not allow horses or other traditional livestock inside city limits.
Can I raise a pig as a 4-H project in Tucson?
Generally no inside Tucson city limits. Pigs and other large livestock are restricted to unincorporated Pima County or SR zones. Check with PDSD zoning for temporary youth agriculture exemptions.
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