Until relatively recently in history, it was easy to determine whether a place was urban or rural. Walking was the main way to get around, so a strong incentive existed for urban areas to remain compact. But with transportation improvements, particularly highway construction since 1945, the boundaries between urban and rural areas have grown increasingly blurry. Knowing these boundaries, however, is important. With the decline in agricultural and manufacturing employment, the socioeconomic differences between much of rural and urban Virginia has increased.
Source: Census 2012-2016 ACS, using USDA Rural Urban Commuting Codes to define Virginia rural and urban areas.
Currently, there are at least 15 different federal definitions of what is considered rural. By far, the two most commonly used definitions are from the Census Bureau and the Office of Management and Budget. The Census Bureau defines rural as any place that is located outside a dense urban area (which is as an area with a population greater than 2,500). This is a more traditional definition of a rural area in that it focuses on population density. The Office of Management and Budget defines a county as non-metro (which is typically considered rural) if it does not have a Census Urban Area with a population over 50,000 or a large share of their workforce commuting into a nearby urban area. Including commuter counties as part of a metro area (which is typically considered urban) helps take account for the blurring of rural-urban boundaries that has occurred since World War Two.
Eastern Henrico County just outside Richmond, VA is considered rural by the Census Bureau
Both definitions of rural area have noticeable weaknesses. The Census Bureau’s definition of rural areas is largely focused on population density, often classifying suburbs as rural, such as Clifton in Fairfax County, and sometimes classifying small towns, such as Clifton Forge in western Virginia, as urban. The Office of Management and Budget’s definition has the opposite problem. Because metro areas are created on the county level, remote areas, such as most of Shenandoah National Park, are often also included in metro areas.
Source: Census Bureau, Office of Management and Budget
Among the many different definitions of rural areas, the Rural-Urban Commuting Area Codes, produced by the Department of Agriculture, is the best compromise between Census Bureau and Metro Area definitions of a rural area. The Rural-Urban Commuting Area Codes account for density and commuting patterns, as Metro Areas do, but they are also available in smaller geographies than a county as is true with the Census definition of urban and rural areas. In Virginia, using the Rural-Urban Commuting Area Codes shows that parts of some metro areas are obviously rural, such as western Rappahannock County, but also that some areas that are considered rural, such as southern Russell County, have high levels of commuting into nearby urban areas.
Virginia Rural-Urban Commuting Area Codes