Animal Ordinances in Mercer County, NJ (2026)
1 rule for unincorporated Mercer County, New Jersey.
Verified from official government sources
Note: These county rules apply to unincorporated areas of Mercer County. If you live within an incorporated city, that city's own rules apply: see the city list below.
Dog Leash Laws
Dogs, cats and other furred animals in Mercer County parks must stay on a leash no longer than 6 feet and cannot run at large outside designated dog park areas. Owners must clean up and properly dispose of pet waste under the Park Commission's Pets, Horses rule.
Mercer County Parks Require 6-Foot Leash
Some RestrictionsMercer County Park Commission Rules and Regulations (Dec. 7, 2016), 'Pets, Horses'
No person shall permit a dog, cat or other furred animal in their possession to run at large within a County Park or Recreation Area besides designated dog park areas. All owners are responsible for cleaning up after their dog(s) and disposing of the waste properly. A dog, cat or other furred animal must be in the custody or under control of its owner and restrained by a leash not exceeding 6 f...
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