Per the City of Hanford Municipal Code:
Section 6.04.060 Leash law.
It is unlawful for any person to permit any dog owned, harbored or controlled by him to be on any public street, alley, lane, park, or place of whatever nature open to and used by the public in any area of the city unless such dog is securely leashed and the leash is held continuously in the hands of a responsible person capable of controlling such dog, or unless the dog is securely confined in a vehicle. It is unlawful for any person to permit any dog owned, harbored or controlled by him to be on any private property in any area of the city without the permission of the person owning or occupying such private property.
However, dogs are allowed off leash at City dog parks. Dog parks are located at Hidden Valley Park, Freedom Park, Redwood Park and will be added at Lakewood Basin Park, Sherwood Basin Park and Quail Run Basin Park in 2023.