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US Distribution of Active Stallions and Mares Bred
For the year: 2006
State by
Ranking
Mares
Bred
Stallions Avg.
Book
Kentucky21,48838456.0
Florida7,18226027.6
California4,97934114.6
Louisiana4,11730113.7
Texas2,7493537.8

New York2,34212418.9
New Mexico2,07919610.6
Maryland1,6477222.9
Oklahoma1,6282207.4
West Virginia1,2048614.0

Pennsylvania1,1781229.7
Washington1,0669211.6
Illinois1,0281099.4
Arizona585698.5
Arkansas564648.8

Michigan560638.9
Indiana490875.6
Ohio461825.6
New Jersey4593413.5
Oregon457548.5

Iowa4334310.1
Minnesota375399.6
Nebraska367389.7
Colorado353546.5
Utah289387.6

Idaho267455.9
Virginia239713.4
Montana166384.4
North Dakota146207.3
Kansas143265.5

Alabama132255.3
South Carolina130225.9
South Dakota128158.5
Tennessee109274.0
Georgia80174.7

North Carolina69183.8
Missouri67183.7
Mississippi48124.0
Wisconsin35103.5
Massachusetts2993.2

Wyoming2082.5
Nevada1362.2
Connecticut632.0
Vermont321.5
Delaware212.0

Rhode Island212.0

Total59,9143,71916.1

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

Source: The Jockey Club