The 2017 USDA Ag Census reported data on scores of ag statistics, including dairy cow inventory.
Here are the top 25 counties with the most dairy operations that have 50 or more cows:
Wisconsin and Pennsylvania have the most dairies on the list, with 12 and 6 respectively.
For a list of the top 25 counties with the most cows, click here.
Check out the maps below to see how many dairies are in your state by herd size:
Dairies with more than 500 cows:
Dairies with 100 to 199 cows:
Dairies with 50 to 99 cows: