Table 4. Dairy cow enrollment in DHI as of January 1, 2020, by State and test-plan category

breed=ALL

  Official Management All Plans  
State Herds Cows Herds Cows Herds Cows Percentage of cow population in DHI
Alabama 2 436 4 508 6 944 24
Arizona 12 29,548 1 8,088 13 37,636 20
Arkansas 9 1,496 4 660 13 2,156 43
California 540 852,237 16 16,673 556 868,910 50
Colorado 33 67,235 2 1,048 35 68,283 36
Connecticut 47 12,534 1 46 48 12,580 65
Delaware 13 2,668 3 94 16 2,762 73
Florida 14 22,965 12 18,512 26 41,477 35
Georgia 39 9,521 14 9,803 53 19,324 24
Idaho 97 222,221 4 4,230 101 226,451 36
Illinois 203 38,733 28 1,902 231 40,635 50
Indiana 135 51,721 80 9,976 215 61,697 35
Iowa 342 99,149 73 14,291 415 113,440 53
Kansas 78 22,787 22 2,474 100 25,261 15
Kentucky 37 8,952 158 16,625 195 25,577 52
Louisiana 7 1,194 18 2,837 25 4,031 40
Maine 84 14,537 3 520 87 15,057 54
Maryland 152 24,055 37 3,900 189 27,955 67
Massachusetts 40 3,237 10 586 50 3,823 38
Michigan 351 173,414 44 14,615 395 188,029 44
Minnesota 896 189,021 161 20,543 1,057 209,564 47
Mississippi 14 2,946 11 1,803 25 4,749 59
Missouri 100 12,327 69 7,265 169 19,592 25
Montana 13 3,167 2 148 15 3,315 28
Nebraska 42 25,214 16 3,559 58 28,773 50
Nevada 7 6,922 0 0 7 6,922 22
New Hampshire 53 6,993 5 314 58 7,307 66
New Jersey 29 2,832 1 201 30 3,033 65
New Mexico 15 70,981 0 0 15 70,981 22
New York 932 332,396 213 22,133 1,145 354,529 57
North Carolina 59 17,556 19 5,241 78 22,797 56
North Dakota 10 4,203 6 3,971 16 8,174 56
Ohio 358 71,889 175 31,880 533 103,769 41
Oklahoma 18 2,289 22 3,493 40 5,782 14
Oregon 88 38,484 4 854 92 39,338 31
Pennsylvania 1,476 206,864 1,360 93,216 2,836 300,080 62
Rhode Island 4 212 0 0 4 212 35
South Carolina 19 3,795 1 1,001 20 4,796 44
South Dakota 31 25,997 18 14,139 49 40,136 32
Tennessee 46 5,884 3 879 49 6,763 22
Texas 73 195,045 26 28,399 99 223,444 39
Utah 59 27,585 11 2,023 70 29,608 31
Vermont 177 42,619 56 7,278 233 49,897 40
Virginia 138 33,294 57 7,955 195 41,249 57
Washington 88 72,797 5 3,448 93 76,245 27
West Virginia 15 1,588 1 148 16 1,736 29
Wisconsin 1,715 575,337 838 100,877 2,553 676,214 53
United States 8,710 3,636,877 3,614 488,156 12,324 4,125,033 44 

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