<span>USA Counties provides 2017 boundaries for </span><span><span> the counties of the United States in the 50 states, the District of Columbia, and Puerto Rico</span>.  </span><span><span>The boundaries are consistent with 
the tract, block group, and state layers and are effective at county, 
regional, and state levels.<br /><br /></span>Attribute fields include 
estimated 2017 total population, 2010 U.S. Census demographic 
information, and 2012 Census of Agriculture
 information for the USA counties. </span>
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