Dairy Herd Grows; Milk Output Rises 2.6%

October dairy cow inventory climbed 167,000 head from a year earlier as nonfat dry milk prices nearly doubled in early 2026.

Updated on Nov. 12, 2026 in Agriculture

Holstein dairy cows graze across a wide green pasture toward a weathered red barn and silo under a soft evening sky, reflecting a growing dairy herd. — The U.S. dairy cow herd grew by 167,000 head from a year earlier in October, lifting milk production 2.6% as nonfat dry milk prices nearly doubled. AI Illustration. Upload story photo >

The U.S. dairy cow herd grew by 15,000 head in October 2026 from the prior month and by 167,000 head from a year earlier. October milk production rose 2.6% from the same month in 2025 as the expanded herd produced more milk.

Why it matters

The larger herd reflects producers responding to strong domestic demand for dairy products, even as farm-gate milk prices were lower over the summer. Changes in herd size and production shape supply and pricing across the national dairy market.

Dairy cow inventory rose 15,000 head (+0.2%) from September and 167,000 head (+1.7%) from October 2025, while October milk production was up 2.6% year-over-year. The extent of further herd expansion remains uncertain, with higher feed costs expected to restrain growth this quarter.

The details

Dairy cow slaughter has run above year-ago levels for most of 2026, though the gap has narrowed since July. Nonfat dry milk prices nearly doubled in the first six months of 2026 as domestic usage climbed, with winter-quarter usage up 31% from a year earlier.

January through June 2026: Nonfat dry milk prices nearly doubled domestically.
Winter quarter 2026: Nonfat dry milk usage rose 31% year-over-year.
Spring quarter 2026: Nonfat dry milk usage rose 9% year-over-year.
Summer 2026: Farm-gate milk prices fell 4% year-over-year.
October 2026: The dairy cow herd grew by 15,000 head from the prior month.

Market Landscape

The herd expansion continues a pattern visible in USDA monthly Milk Production and Cattle reports, where year-over-year inventory gains have been tracked since 2025. Rising nonfat dry milk usage and prices show how domestic demand is reshaping dairy markets against this backdrop of a larger national herd.

Larger herd output and steady supply may help keep dairy prices stable for consumers in the near term. Higher feed costs, however, could limit how quickly producers expand, which may affect future dairy product prices.

The takeaway

Monitoring monthly USDA cow inventory and milk production reports is a practical way to track where dairy prices may move next. Watching feed cost trends alongside herd size gives a clearer picture of future supply.