Since 1840, the U.S. government has collected important census data on agriculture. The purpose of the Census of Agriculture is to account for all U.S. farms and to summarize the characteristics of those farms and their operators at the national, state, and county levels.
Today, the Census is the only comprehensive source of statistics on American agriculture that provides information by county. So, why do we call the numbers we produce estimates? Aren’t the numbers known exactly? These are the questions I am often asked when discussing the agricultural census. The fact is that we do not know the numbers exactly so we produce the best estimates we can, given the data we collect.