In most residential zones of unincorporated Jefferson County, the maximum number of cats, dogs, potbelly pigs, and similar domesticated pets you may keep is 3. Litters of puppies and kittens may be kept until weaned. Agricultural lots meeting minimum size have no limit.
Jefferson County's "Domestic Animals Permitted by Zoning" chart (note A) caps common household pets at 3 across all mountain-residential and residential zone districts. Litters of puppies and kittens are exempt until weaned. On agricultural-zoned lots (note B), properties meeting the minimum lot size have no pet limit for personal use, but properties not meeting minimum size revert to the 3-pet cap. Commercial boarding of animals is not permitted without a special use permit. Note this zoning pet cap is separate from the Animal Control dog-licensing requirement (license required for each dog over 4 months old).
Keeping more than 3 pets in a capped zone is a zoning violation enforced by Planning & Zoning. Unlicensed dogs are separately a petty offense under the Animal Control Regulation ($50 minimum fine).
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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See how Arvada's pet limits rules stack up against other locations.
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