Lambton County has 2,346 farms with a total of 592,793 acres. The largest single use of farmland in Lambton is crop production, with 85% of total farmland reported as land in crops. Over the last 20 years, soybeans, wheat, and grain corn have accounted for over 80% of total area crop production in Lambton. The fourth and fifth leading crops are sugar beets and hay. Oats, barley and mixed grains are also produced. Top animal production includes dairy, beef, hog, and poultry.