he State Demographics unit is primarily responsible for producing population estimates and projections. The annual estimates of the population of North Carolina counties and municipalities are used in the distribution of state shared revenues to local governments. County and state population projections, available by age, race (white/other) and sex, are used for long range planning. To produce these estimates and projections, the unit develops and enhances complex mathematical computer models, and collects and reviews a variety of data from federal, state, and local government sources. It annually surveys North Carolina municipalities for annexation data, municipalities and counties for selected institutional data, and military bases for barracks population data. As a member of the Federal State Cooperative Program for Population Estimates (FSCPE), the unit collects and examines data for the Census Bureau and reviews Census Bureau estimates and methods.