DemographicsNow and Claritas 360 are the best sources for U.S. demographic, household, and economic data for a variety of geographic regions, including DMA.
DMA (Designated Market Area) regions are the geographic areas in the United States in which local television viewing is measured by Nielsen. There are 210 DMA regions, covering the entire continental United States, Hawaii, and parts of Alaska. The DMA boundaries and DMA data are owned by Nielsen.
Watch this brief tutorial to learn how use DemographicsNow to find demographics, attitudes, and spending habits of consumers in any geography in the US.