Print Masthead

content | navigation | back


United States Department of Agriculture
National Agricultural Statistics Service

images of U.S. agricuture
Search NASS Advanced SearchSearch TipsBrowse NASS by Subject Crops and Plants Demographics Economics Environmental Livestock and Animals Charts and Maps Research and Science Education and Outreach Statistics by State #
You are here:  Home /

  County Data FAQs

What Are Districts?

Agricultural Statistics Districts (ASD) are defined groupings of counties in each State, by geography, climate, and cropping practices. The geographic attributes include soil type, terrain, and elevation (mountains). The basic components of climate are mean temperature, annual precipitation and length of growing season. These factors influence the crops grown, the need to conserve soil moisture, and the use of irrigation (cropping practices).


Last modified: 06/02/09