Currently, 14 states have official dog breeds (which we think is much cooler than a state flower)!
The breeds are:
Alaska – Alaskan Malamute

Delaware – Golden Retriever

Georgia
“Any adoptible dog.”
Louisiana – Catahoula Leopard Dog
This breed is actually in the AKC Foundation Stock Service and has a breed page on the AKC site with quite a bit of information: Catahoula Leopard Dog Breed Information
The Louisiana Catahoula Leopard Dog is also fully recognized by the UKC!
Breed Standards : Louisiana Catahoula Leopard Dog | United Kennel Club (UKC)
Maryland – Chesapeake Bay Retriever

Massachusetts – Boston Terrier

New Hampshire – Chinook

New York
Any “working” dog.
North Carolina – Plott Hound

Pennsylvania – Great Dane

South Carolina – Boykin Spaniel

Texas – Blue Lacy
This dog is not recognized by the AKC or the UKC.