These small cities are called "micropolitan areas".
A micropolitan areacontains a urban center of something like 10,000, yet under 50,000, population. Micropolitan statistical areas must have a urban bunch of no less than 10,000 individuals yet less than 50,000 individuals. The assignment incorporates the province where the urban bunch is in addition to neighboring areas connected by driving ties. The size and fundamental criteria for metropolitan statistical regions are to a great extent unaltered.