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Longmont, CO Animal Ordinances: Mandatory Spay/Neuter (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

Applies to
Miniature pot-bellied pigs only
Exemption
Vet letter citing health risk
Ownership cap
1 unaltered pig per property
General pets
No dog/cat spay-neuter mandate

Summary

Longmont requires proof a licensed miniature pot-bellied pig has been spayed or neutered, unless a veterinarian certifies that doing so would harm the animal's health; dogs and cats face no citywide spay/neuter mandate.

That the animal has been spayed or neutered, unless the owner provides the clerk a letter from a veterinarian, licensed in the state, that such spaying or neutering would be detrimental to the health of the animal; and3.Of the inspection required in section 7.04.040.B. (Code 1993, § 7.04.020; Code 2009, § 7.04.020; Ord. No. O-88-65, § 1; Ord. No. O-93-29, § 1; Ord. No. O-94-58, § 1; Ord. No. O-98-18, § 1; Ord. No. O-98-61, § 1; Ord. No. O-2024-35, § 1, 5-28-2024)

View official code

Full Breakdown

Under § 7.04.020(F)(2), when licensing a miniature pot-bellied pig, owners must show proof the animal has been spayed or neutered, unless they give the city clerk a veterinarian's letter stating that altering it would harm the pig's health. Separately, § 7.04.130(D) caps ownership at one unaltered pot-bellied pig per residential property: a second pig is allowed only if it too is spayed or neutered. Longmont does not impose a citywide mandatory spay/neuter law for dogs or cats generally; that requirement is specific to licensed miniature pot-bellied pigs.

Violations & Fines

Keeping an unlicensed or unaltered pot-bellied pig without proof of spay/neuter status, or a vet exemption letter, violates § 7.04.020 and § 7.04.130(D); enforcement follows the animal-code penalty in § 7.04.240.

Frequently Asked Questions

Does Longmont require spaying or neutering dogs and cats?
No. The city's mandatory spay/neuter proof requirement applies only to miniature pot-bellied pigs; dogs and cats need licensing and rabies vaccination but no altering requirement.
How many unaltered pot-bellied pigs can I keep?
Only one unspayed/unneutered pot-bellied pig is allowed per residential property; a second pig must be spayed or neutered.

Sources & Official References

Other rules in Longmont

Dog Leash LawsSome RestrictionsChickens & LivestockSignificant RestrictionsBird ProtectionSignificant RestrictionsCat RulesSome RestrictionsBeekeepingSome RestrictionsVeterinary Clinic ZoningSome RestrictionsBreed RestrictionsLight RestrictionsExotic PetsHeavy RestrictionsNoise Ordinances: Amplified Music & Outdoor SoundSome RestrictionsNoise Ordinances: Aircraft NoiseLight RestrictionsParking Rules: Driveway RulesSome RestrictionsParking Rules: Abandoned VehiclesSignificant RestrictionsParking Rules: Loading ZonesSome RestrictionsFence Regulations: Fence Permit RequirementsSome Restrictions

All Longmont rules

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