For more information on your state laws, click the state name.
| State | Statewide Leash Law? | Additional Information |
| Alabama | Yes | Dog owner is responsible for dog at all times and must keep them on a leash when off property. |
| Alaska | No | Municipalities may enforce leash laws in their jurisdiction. |
| Arizona | No | Dogs must be leashed in public parks and schools, as well as during rabies quarantines. Female dogs in heat and vicious dogs must also be kept on leashes. |
| Arkansas | No | N/A |
| California | No | Female dogs in heat must be leashed. |
| Colorado | No | Some municipalities require leashes, including Denver. |
| Connecticut |
No | Dogs must be under control of the owner if it is roaming on another’s land or on a public highway, including sidewalks. Local governments may have leash laws. |
| Delaware | No | Dogs must be accompanied with reasonable control by their owner unless on a farm. Dogs must also be kept under control during the nighttime. |
| District of Columbia | Yes | Dogs must be leashed unless in a government approved dog park. Dogs are not permitted on school property during school time. |
| Florida | No | Most counties have leash laws. |
| Georgia | No | Leashes required in Atlanta and other municipalities. |
| Hawaii | No | Some leash laws determined by county. Female dogs in heat are required to be on a leash. |
| Idaho | No | N/A |
| Illinois | Yes | It is unlawful for dogs to run at large. |
| Indiana | No | Leash laws determined by county. |
| Iowa | No | Dogs prohibited from running at large. Dogs running at large without a rabies vaccination tag may be impounded. |
| Kansas | No | Leash laws determined by city ordinance. |
| Kentucky | No | Unaccompanied dogs may not run at large between sunset and sunrise and if found doing so may be seized. |
| Louisiana | Yes | Dogs cannot run at large. |
| Maine | Yes | Dogs may not run at large unless when used for hunting. |
| Maryland | No | Leash laws determined by county. |
| Massachusetts | No | Dogs must be leashed at public highway rest areas. Local governments may have leash ordinances. |
| Michigan | Yes | Dogs must be on a leash when in public. |
| Minnesota | No | Unlicensed dogs running at large may be impounded. |
| Mississippi | No | Laws determined by municipalities. |
| Missouri | No | Dogs must be kept on leashes under 10 feet long when at state parks or historic sites. |
| Montana | No | Leash laws determined by municipality. Dogs found running at large without a license tag may be seized. |
| Nebraska | No | Dogs may not run at large in counties over 80,000 in population. Dogs found running at large for over 10 days without a collar may face fines up to $25. |
| Nevada | No | |
| New Hampshire | No | Unsupervised dogs are not allowed to run at large. |
| New Jersey | No | Leash laws determined by municipality. |
| New Mexico | No | Leash laws determined by county. |
| New York | Yes | Dogs must be restrained when off property. |
| North Carolina | No | Unaccompanied dogs may not run at large during the nighttime. |
| North Dakota | No | N/A |
| Ohio | No | Dogs must be kept under reasonable control except when hunting. Female dogs in heat must be leashed. |
| Oklahoma | No | Dogs must be leashed at state parks. Counties larger than 200,000 may regulate or prohibit dogs from running at large. |
| Oregon | No | Local governments may have leash laws. |
| Pennsylvania | No | All dogs must be controlled within the premises of their owner. |
| Rhode Island | No | Leash laws determined by city or town councils. |
| South Carolina | No | It is illegal for dogs to run at large off of their owner’s property. |
| South Dakota | No | Dogs running at large may be regulated or prohibited by county. Dogs not permitted to run at large in state parks. |
| Tennessee | No | The owner of a dog is responsible for keeping the dog under control at all times and not allowing it to run at large, unless for hunting. |
| Texas | No | Laws vary by city. |
| Utah | No | Each municipality has authority to determine its own law. |
| Vermont | No | Some towns may have their own ordinances. |
| Virginia | No | Local jurisdictions may have running at large ordinances. |
| Washington | No | Leash laws determined by city or municipality. |
| West Virginia | No | Owners are liable for damages caused by dog. |
| Wisconsin | No | Dogs running at large are subject to impoundment and their owners subject to fines. Leash laws may be adopted by county. |
| Wyoming | No | Local governments may regulate or prohibit dogs from running at large. |