News Release

Contact: Terry Matlock, (720) 787-3172

United States hog inventory down 4%

WASHINGTON, Dec. 23, 2021 – As of Dec. 1, there were 74.2 million hogs and pigs on U.S. farms, down 4% from December 2020 and down 1% from Sept. 1, 2021, according to the Quarterly Hogs and Pigs report published today by the U.S. Department of Agriculture’s National Agricultural Statistics Service (NASS).

December 2021 Hogs Pigs Inventory

Other key findings in the report were:

  • Of the 74.2 million hogs and pigs, 68.0 million were market hogs, while 6.18 million were kept for breeding.
  • Between September and November 2021, 33.7 million pigs were weaned on U.S. farms, down 4% from the same time period one year earlier.
  • From September through November 2021, U.S. hog and pig producers weaned an average of 11.19 pigs per litter.
  • U.S. hog producers intend to have 2.94 million sows farrow between December 2021 and February 2022, and 3.01 million sows farrow between March and May 2022.
  • Iowa hog producers accounted for the largest inventory among the states, at 23.8 million head. Minnesota had the second largest inventory at 8.90 million head. North Carolina was third with 8.00 million head.

To obtain an accurate measurement of the U.S. swine industry, NASS surveyed roughly 6,300 operators across the nation during the first half of December. The data collected were received by electronic data recording, mail and telephone.

There will be a question and answer session during a live #StatChat on the @usda_nass Twitter account today at 4:00 p.m. EST to answer your question about the Quarterly Hogs and Pigs report. To ask a question, make sure you include the #StatChat to any questions you may have. The #statchat happens every quarter after the Quarterly Hogs and Pigs Report is released.

The Quarterly Hogs and Pigs report and all other NASS reports are available online at


NASS is the federal statistical agency responsible for producing official data about U.S. agriculture and is committed to providing timely, accurate and useful statistics in service to U.S. agriculture.

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