News Release

Contact: Terry Matlock, (720) 787-3172

United States hog inventory down 4%

WASHINGTON, Sept. 24, 2021 – As of Sept. 1, there were 75.4 million hogs and pigs on U.S. farms, down 4% from September 2020 but up 1% from June 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).

June 2021 Hogs Pigs Inventory

Other key findings in the report were:

  • Of the 75.4 million hogs and pigs, 69.2 million were market hogs, while 6.19 million were kept for breeding.
  • Between June and August 2021, 33.9 million pigs were weaned on U.S. farms, down 6% from the same time period one year earlier.
  • From June through August 2021, U.S. hog and pig producers weaned an average of 11.13 pigs per litter.
  • U.S. hog producers intend to have 3.00 million sows farrow between September and November 2021, and 2.96 million sows farrow between December and February 2022.
  • Iowa hog producers accounted for the largest inventory among the states, at 24.4 million head. Minnesota had the second largest inventory at 9.00 million head. North Carolina was third with 8.30 million head.

To obtain an accurate measurement of the U.S. swine industry, NASS surveyed roughly 4,800 operators across the nation during the first half of September. The data were collected by online questionnaire, mail, and telephone.

NASS will host Stat Chat, a live question and answer session on Twitter @usda_nass, today at 4 p.m. EST to answer any questions about this report. NASS hosts regular Stat Chat events throughout the year for the public to discuss livestock as well as crop production reports with NASS statisticians. The next hogs and pigs Stat Chat will coincide with the next Quarterly Hogs and Pigs report scheduled for release on Dec. 23. For all upcoming Stat Chat dates, stay connected with NASS on Twitter.

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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