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Iowa Dairymen Face Tightening Margins as U.S. Cow Numbers Fall and Production Levels Shift

Iowa’s dairy producers enter the second half of 2026 navigating a complicated economic landscape marked by tightening margins, shifting national cow inventories, and evolving milk production trends. New insights from the 2026 Iowa Agricultural Outlook combined with recent USDA inventory reports, show both pressure and opportunity emerging for Iowa dairymen.

Iowa agriculture remains in a prolonged downturn. The Outlook notes that “net farm income in Iowa fell by 53 percent from 2022 to 2024”, driven largely by declining corn and soybean prices while input costs stayed elevated. For dairymen, this matters directly: feed costs, credit conditions, and land values all shape margins. The report emphasizes that “crop input costs are expected to remain higher than comfortable”, keeping ration costs sensitive even as grain prices soften.

National Cow Inventory & Production Trends

The dairy herd at the end of June stood at 9.677 million head, up 192,000 head from June 2025. Dairy producers are milking more cows than they have in 33 years. This is the largest U.S. dairy herd since 2019 and driven by driven by strong demand and processing capacity.

Source : iastate.edu

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Season 7, Episode 2: From Data to Decisions in Swine Production

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Data can provide a clear picture of trends and performance across a swine farm, but its greatest value comes from putting those insights into action. In this episode, Dr. Edison Magalhães, assistant professor in the department of animal science at Iowa State University, discusses how producers can leverage data to make informed decisions that improve herd performance from birth to market. He highlights the challenges of siloed data across different teams, the impact those gaps can have on performance and the importance of integrating data to gain a more complete picture of herd health and productivity. He also explains the PROSPER (Predictors of Swine Performance) tool, which combines data from multiple sources to help producers better understand herd performance.