What is a DMA? Monique Dilonga Updated July 02, 2018 14:40 Follow DMA, or Designated Market Area, is geographic area that represents specific markets as defined by the Nielsen Company. You can find the complete list of DMAs here. Related articles How does People Report track data and create benchmarks? What is Black Box Intelligence? Can I benchmark my performance against other industry segments besides my own? Comments 0 comments Article is closed for comments.