It is unlawful and punishable as a misdemeanor for the owner of any dog whether licensed or unlicensed to suffer, permit or allow such dog to run at large on any public street, alley, park, square or place, or in any vacant or unenclosed lot within populated areas of the county. Any dog shall be deemed running at large in a populated area unless led or restrained by a substantial leash, chain, strap or cord not more than six feet (6') in length attached to its collar, and held by some person or made fast to some object, except that a dog restrained on the property of the owner of such dog may be restrained by a fence, leash, chain, strap or cord of such length as not to extend beyond the boundary line of the property. A dog shall be deemed running at large in an unpopulated area if not with the owner and not under the voice control of the owner. (MC Ord. 102A § 2, 1986)