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NASS: U.S. corn production and December 1 corn stocks hit record highs in 2025
Summary
The National Agricultural Statistics Service reported record 2025 U.S. corn production (just over 17 billion bushels) and the highest December 1 corn stocks on record (about 13.3 billion bushels), citing larger harvested area and a record average yield of 186.5 bu/acre.
The National Agricultural Statistics Service (NASS) reported on its December 2025 crop and grain-stocks releases that U.S. corn production reached a record, driven by slightly larger harvested area and a record average yield. Anthony Pryin, acting chief of the NASS crops branch, presented the figures at a public briefing.
"Planted acreage at 98.8 million acres is up one‑tenth of a percent compared to the previous estimate and up 8.7% from 2024," Pryin said, and he added that "the 2025 average yield is estimated at a record high 186.5 bushels per acre." Pryin said production is estimated at just over 17 billion bushels, which he described as a U.S. record.
The agency also reported December 1 corn stocks of about 13.3 billion bushels, up roughly 10% year over year and the highest December 1 level on record. Pryin noted that on‑farm stocks rose by double digits while off‑farm stocks grew more modestly.
Why it matters: larger-than-expected U.S. corn supplies affect domestic feed use, exports and season‑average price expectations. Mark Jinowski, chair of the World Agricultural Outlook Board, said the stock and production revisions contributed to a modest change in the U.S. season‑average corn price and to higher global ending stocks, a development that typically eases price pressure.
NASS emphasized its data sources and methods during the briefing: the December Agricultural Survey (about 73,000 farmer reports), an all‑farm grain stocks survey of commercial facilities, objective yield field sampling, cotton‑gin reporting, and USDA administrative files from FSA and RMA. The agency reminded listeners that official published estimates are the authoritative record and reiterated OMB guidance restricting policymaker comment in the 30 minutes after release.
Next steps: NASS publishes its formal reports on its website; agency staff and subject‑matter experts will be available for follow‑up by phone and email and will host a social‑media Q&A later in the day.
