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US Distribution of Active Stallions and Mares Bred
For the year: 2007
State by
Ranking
Mares
Bred
Stallions Avg.
Book
Kentucky21,98436859.7
Florida6,52025525.6
California4,75932414.7
Louisiana4,25529714.3
Texas2,3663187.4

New York2,08111318.4
New Mexico2,00819210.5
Oklahoma1,7371939.0
Maryland1,4476422.6
Pennsylvania1,19010611.2

West Virginia1,0498712.1
Washington9208011.5
Illinois8821018.7
Arkansas608649.5
Indiana591817.3

Arizona508618.3
Michigan436607.3
Iowa4163910.7
New Jersey3932913.6
Oregon390586.7

Ohio362754.8
Colorado322546.0
Nebraska321339.7
Minnesota315339.5
Idaho267396.8

Utah213268.2
Kansas153305.1
North Dakota153246.4
Virginia149503.0
South Carolina136265.2

Montana126333.8
Alabama108254.3
Georgia107205.4
South Dakota107128.9
Tennessee90224.1

Missouri70183.9
Mississippi49133.8
North Carolina42133.2
Wisconsin3784.6
Massachusetts36103.6

Nevada2473.4
Wyoming851.6
New Hampshire522.5
Connecticut111.0
Delaware111.0

Vermont111.0

Total57,7433,47116.6

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

Source: The Jockey Club