Antimicrobials are commonly used in agriculture and are important for animal health. This use drives most of the antimicrobial use globally and has led to an increase in antimicrobial resistance (AMR), including resistance to antimicrobials that are critical in human medicine. Researchers recently examined the AMR profiles of over 400 pigs, including wild boars, Tibetan pigs, and commercial pigs, under multiple rearing modes. They identified over a thousand potential antimicrobial resistance gene (ARG) sequences that belonged to 69 different drug resistance classes. From this dataset a few patterns emerged. Tetracycline resistance was the most enriched, but aminoglycoside resistance had the most unique ARGs. Farm-reared pigs had higher AMR levels than semi-free-range pigs or wild boars. A core set of bacterial species could be found in nearly all of the samples, but only 9 of the 128 ARGs found in these core bacteria could be considered core ARGs suggesting that many of the ARGs found in core bacteria were acquired rather than constitutive. Overall, this study provides an overview of the ARG profiles found in different pig populations and farming methods. These results can be used as a reference to evaluate the risk of ARG spread on pig farms and to optimize antimicrobial use.