OMB Definition of Metropolitan Statistical Areas & Creating Urban/Suburban/Rural Classifications in NC

The 2020 Office of Management & Budget's bulletin gives "Revised Delineations of Metropolitan Statistical Areas, Micropolitan Statistical Areas, and Combined Statistical Areas, and Guidance on Uses of the Delineations of These Areas" and serves to create the classifications of urban, suburban, and rural counties, with the "central city" for both urban and suburban counties, in North Carolina used for analysis: