I've been there and is Big! I didn't know , so I helped me with Wikipedia, here is the information I found. First Monday Trade Days currently operates over 100 acres (0.4 km2) and provides places for 6,000 vendors. There are various buildings and areas, each designated by name, among them the Original Pavilions, Canton Marketplace, Old Mill Marketplace, The Village, The Mountain, The Arbors and The Dog Alley. There is also an area adjacent to the First Monday Trade Days facility (the one operated by the city) known as 'the Lewis side'. In 2009 Henry Lewis, owner of 'the Lewis side' purchased the Arbors.
I think the answer of 40 acres is pretty accurate. There is also two antique malls in the downtown area and three fields across from the main park. One is called dog alley, because they sell animals. More then enough to see.
There are 3 different parts\areas that my husband & I have been to, so far😀. Possibly more. Not sure if it's all considered to be "First Monday" exactly, but there is so, so much.
40 acres
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