Initial investigations were made into the feasibility of estimating populations through a multiple regression technique during summer 1972. There was a relationship between population and the 2 independent variables tested--school enrollment and residential electrical hook-ups--when allowance was made for size through the use of dummy variables. The sample was limited to 14 communities. Research continued into fall 1972 with the sample size increased to 35 communities. The expanded sample was tested to see if a relationship still existed between the population and electrical hook-ups and school enrollment. Since satisfactory results could not be obtained using just the variables, dummy variables were added as independents. The problem was then approached from a regional perspective, using 5 basic regions which were defined on the basis of geographical proximity. An inherent weakness was that 4 regions included 6 or less communities. Thus, the simple approach to calculating people per residential electrical hook-up was used for the following dates: January 1970; January 1972; and January 1973. Thirty-six communities were used in January 1973. This report presents these telephone, electrical, and school data on appendix form. (NQ)