​​Idaho Dairy Herd Improvement  Association

Idaho Dhia in Twin Falls

Purchase online at Moo.CartoonistBook.com

National DHIA is excited to partner with nationally renowned  cartoonist Leigh Rubin to offer this exclusive book to our members. This beautiful, full-color, hardcover book will feature more than 250 Rubes® Cartoons hand selected by the cartoonist himself specifically for this project! Only a limited number of this hardcover collector’s item will be produced. Reserve yours today at just $34.95 per book to be sure you don’t miss out! A softbound version of The Big Book of Moo is also available at $14.95.

By purchasing this unique book, you will be supporting the National DHIA Scholarship Program. Established more than 20 years ago, this program awards scholarships to full time, incoming and continuing enrolled in two-year and four-year college/university students whose families are members of National DHIA. Scholarships are also awarded to students enrolled in a college of veterinary medicine in the United States.Approximately 20 total scholarships are awarded each year.

​Welcome to the Idaho DHIA website. Idaho DHIA is a certified field service provider serving Idaho, Montana, Oregon Colorado, and Washington dairymen. 

On November 5th, 1973 Idaho DHIA was formed. Currently Idaho DHIA works closely with twenty-five (25) independent dairy cow supervisors and thirty (30) independent goat supervisors.

Over the years Idaho DHIA has seen steady growth in cow numbers and a slight decrease in herd numbers. For our 2014-2015 year we had an average of 271,030 cows and 183 herds. Compared to the previous year of 225,438 cows and 184. In 2004-2005 we had 160,350 cows and 306 herds. Since 2005 we've seen a loss of 124 herds, and gain of over 94,000 cows.​​


Idaho DHIA is proud to be a member of National DHIA, an organization whose purpose is to promote accurate, reliable, and credible DHIA records and represent the interests of DHIA affiliates within the dairy industry in the US.

For more information on National DHIA, you can visit their website at