37 Miss. Code R. § 1-6101-53001-301
The MDOT uses the terms "non-urbanized and rural areas" synonymously to mean any area outside an urbanized area, as designated by the Bureau of the Census. An urbanized area consists of a core area and the surrounding densely populated area with a population of 50,000 or more, with boundaries fixed by the Census Bureau or extended by state and local officials. Since the goal of Section 5311 is to enhance access of people living in non-urbanized areas to activities, Section 5311 projects may include the transportation of non-urbanized residents to and from urbanized areas. If Section 5311 funds are used in a joint urbanized/non-urbanized area project, Section 5311 funds should be used primarily to assist the non-urbanized portion of the service area.
37 Miss. Code. R. § 1-6101-53001-301