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US Distribution of Active Stallions and Mares Bred
For the year: 2004
State by
Ranking
Mares
Bred
Stallions Avg.
Book
Kentucky20,44238453.2
Florida7,03225927.2
California5,92641514.3
Louisiana3,34326812.5
Texas3,0963878.0

New York2,68715617.2
Oklahoma1,6372077.9
New Mexico1,6341669.8
Maryland1,6247721.1
Washington1,21511210.8

West Virginia1,1239112.3
Illinois1,1211239.1
Pennsylvania1,0351208.6
Indiana7631007.6
Arkansas615738.4

Michigan591738.1
Ohio569995.7
Iowa5344910.9
Arizona533658.2
Colorado477756.4

Oregon472558.6
Virginia437755.8
Nebraska381438.9
Minnesota361389.5
Idaho334546.2

New Jersey268308.9
Utah235376.4
Montana208474.4
Kansas198316.4
Alabama152344.5

Georgia146275.4
South Carolina146285.2
South Dakota1411211.8
North Dakota129225.9
Missouri113333.4

Mississippi80174.7
Massachusetts69183.8
North Carolina69203.5
Tennessee66203.3
Wyoming31112.8

Wisconsin30103.0
Nevada1772.4
Vermont431.3
Alaska313.0
Delaware212.0

Maine221.0
Connecticut111.0
Hawaii111.0
New Hampshire111.0
Rhode Island111.0

Total60,0953,97915.1

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

Source: The Jockey Club