In addition to the many other forms of animal abuse at state/county fairs around the country, a large number of these fairs conduct live horseracing. Follows is a list.
(For an overview on the evil of horseracing, please see this.)
Arizona
Cochise County Fair (Apr)
Santa Cruz Fair (May)
Arkansas
Arkansas Valley Fair (Aug)
California
Alameda County Fair, Pleasanton (Jun-Jul)
California State Fair, Sacramento (Jul)
Humboldt County Fair, Ferndale (Aug)
Sonoma County Fair, Golden Gate (Aug)
Los Angeles County Fair, Cypress (Sep)
Big Fresno Fair, Fresno (Oct)
Florida
Southern Oaks (Mar-Apr)
Spring Garden (Apr)
Georgia
Hawkinsville (Apr)
Idaho
Jerome County Fair (Jun)
Cassia County Fair (Aug)
Oneida County Fair (Aug)
Eastern Idaho State Fair (Sep)
Illinois
23 separate fairs (Jun-Sep)
Indiana
12 separate fairs (Jun-Oct)
Iowa
9 separate fairs (May-Oct)
Kentucky
7 separate fairs (May-Jul)
Maine
5 separate fairs (Jul-Sep)
Maryland
Maryland State Fair (Aug-Sep)
The Great Frederick Fair (Sep)
Michigan
10 separate fairs (Jul-Sep)
Minnesota
Traverse County Fair (Sep)
Mississippi
Cooper Downs (Mar-Apr)
Neshoba County Fair (Jul)
Nevada
Elko County Fair (Aug-Sep)
White Pine County Fair (Aug)
New York
20 separate fairs (Jul-Sep)
North Carolina
Pinehurst (Apr)
Ohio
50+ separate fairs (Jun-Oct)
Oregon
Eastern Oregon Livestock Show (Jun)
Crooked River Roundup (Jul)
Tillamook County Fair (Aug)
Harney County Fair (Sep)
Pennsylvania
10 separate fairs (Jun-Sep)
Tennessee
Lincoln County Fair (Sep)
Texas
Gillespie County Fair (Jul-Aug)
Vermont
Orleans County Fair (Sep)
Tunbridge World’s Fair (Sep)
Virginia
Shenandoah County Fair (Aug-Sep)
Wisconsin
Iowa County Fair (Jul-Sep)
Walworth County Fair (Sep)
Richland County Fair (Sep)
Vernon County Fair (Sep)
