Rural–urban commuting areas (RUCAs) categorize U.S. census tracts based on measures of urbanization, population density, and daily commuting. RUCA codes range from urban (1) to highly rural (10). RUCAs are a classification scheme that use the standard Census Bureau urban area definitions in combination with commuting information to characterize all of the nation's census tracts. Census tracts are used to establish RUCAs because they are the smallest geographic building block for which reliable commuting data are available. RUCA codes are updated every year and may be found on the website of the Economic Research Service (ERS) of the

United States Department of Agriculture The United States Department of Agriculture (USDA) is an executive department of the United States federal government that aims to meet the needs of commercial farming and livestock food production, promotes agricultural trade and producti ...

and the

University of Washington The University of Washington (UW and informally U-Dub or U Dub) is a public research university in Seattle, Washington, United States. Founded in 1861, the University of Washington is one of the oldest universities on the West Coast of the Uni ...

References

United States Census Bureau geography United States Department of Agriculture University of Washington {{US-stub