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US Distribution of Active Stallions and Mares Bred
For the year: 2013
State by
Ranking
Mares
Bred
Stallions Avg.
Book
Kentucky15,88826759.5
Florida2,99415918.8
California2,54018613.7
Louisiana2,10019210.9
New York1,6397621.6

New Mexico1,1371418.1
Oklahoma1,1311408.1
Texas1,0701726.2
Pennsylvania1,0177613.4
West Virginia7576511.6

Indiana680808.5
Maryland6493220.3
Arkansas363428.6
Washington335388.8
Illinois331605.5

Ohio296496.0
Arizona223425.3
Minnesota221297.6
Iowa197229.0
Colorado180315.8

Oregon176208.8
Idaho136284.9
Nebraska116186.4
Michigan91214.3
North Dakota86155.7

New Jersey72145.1
Alabama62203.1
South Carolina59183.3
Virginia58202.9
Montana57212.7

South Dakota5295.8
Massachusetts46104.6
Tennessee46114.2
Kansas41113.7
Utah35142.5

Missouri1791.9
North Carolina1653.2
Mississippi961.5
Georgia641.5
Wisconsin632.0

Wyoming313.0
Maine111.0

Total34,9392,17816.0

States ranked by number of mares bred. Mares bred to two stallions in the same breeding season are counted twice.

Source: The Jockey Club