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Westminster, CO Animal Ordinances: Pet Limits (2026)

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

Key Facts

Governing section
W.M.C. § 6-7-12(A)
Total domestic animal cap
10 per residential property
Dog/cat cap within total
4 over age 4 months
Service/support animals
Count toward the cap
Fish
Excluded from the count
Penalty
Civil infraction, up to $500.00

Summary

Residential properties in Westminster may keep no more than 10 domestic animals total, and no more than 4 of those can be dogs or cats over four months old. Emotional-support and ADA service animals still count toward that cap.

It shall be a civil infraction for anyone to knowingly possess, harbor, keep, maintain, or permit on any property within the City zoned for residential use more than ten domestic animals, of which no more than four shall be dogs or cats over the age of four months; or more than the number of bee hives allowed in Subsection 6-7-12(H), W.M.C.; or more than the number of female chickens allowed in Subsection 6-7-12(I), W.M.C. For purposes of this subsection any animal being kept as an emotional support animal or ADA service animal shall count toward the pet limits established in this subsection.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 12).

Full Breakdown

Section 6-7-12(A) of the Westminster Municipal Code caps household animal keeping citywide in residentially zoned property: a maximum of ten domestic animals, of which no more than four may be dogs or cats over the age of four months. The cap layers on top of, and is reduced by, the separate hive and hen limits in Subsections 6-7-12(H) and (I), so a property running bee hives or chickens counts those against the same ceiling rather than getting them for free. The Code is explicit that an animal kept as an emotional support animal or ADA service animal still counts toward the limit, so a service dog does not create an exception to the four-dog-or-cat cap.

Fish are expressly excluded from the count. Exceeding the cap is independently declared a public nuisance abatable under Title VIII, Chapter 4, giving code enforcement a civil abatement path on top of the citation itself. Where the residential limit conflicts with the Code's separate rules on exotic, endangered, or prohibited animals, or with state or federal law, those stricter provisions control instead of the numeric pet limit.

Violations & Fines

Keeping more than ten domestic animals, or more than four dogs/cats over four months old, on residential property is a civil infraction under Section 6-7-12(J), punishable by a fine of up to $500.00 upon conviction. The excess animals also constitute a public nuisance the City may abate separately under Title VIII, Chapter 4.

Frequently Asked Questions

How many dogs or cats can I legally own in Westminster, Colorado?
Section 6-7-12(A) limits residential properties to four dogs or cats over four months old, within an overall cap of ten domestic animals total on the property. Puppies and kittens four months or younger are not counted against the four-animal limit.
Does a service dog count toward Westminster's pet limit?
Yes. The Code specifically states that any animal kept as an emotional support animal or ADA service animal counts toward the pet limits in Section 6-7-12(A), so it is not exempt from the four-dog-or-cat cap.
What happens if I keep more than the allowed number of pets in Westminster?
Exceeding the limit is a civil infraction under Section 6-7-12(J) punishable by a fine of up to $500.00, and the excess animals are separately declared a public nuisance the City can abate under Title VIII, Chapter 4 of the Code.

Sources & Official References

Other rules in Westminster

All Westminster rules

Compare Westminster to another location·View the Colorado animal ordinances overview

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