Micro is the least-populated incorporated community in Johnston County. As of the census of 2000, there were 454 people, 211 households, and 124 families residing in the town. The population density was . There were 225 housing units at an average density of . The racial makeup of the town was 90.97% White, 7.71% African American, 1.10% from other races, and 0.22% from two or more races. Hispanic or Latino of any race were 3.96% of the population.
Micro is the least-populated incorporated community in Johnston County As of the census of 2000 there were 454 people 211 households and 124 families residing in the town The population density was  There were 225 housing units at an average density of  The racial makeup of the town was 9097% White 771% African American 110% from other races and 022% from two or more races Hispanic or Latino of any race were 396% of the population