Techniques for estimating the labor supply in any locality from a town and its surrounding rural area to a county or multi-county area are presented. The labor supply in a community can be estimated by many means, including registrations of the unemployed, newspaper advertisements, and a census-type sampling survey of the population. Characteristics of each of these survey techniques are outlined briefly although the handbook discusses in detail only the sampling survey method, as it is the only low-cost method which can be used to get reliable estimates of a community's labor supply, both actual and potential. Five of the six chapters deal with constructing the community survey questionnaire, selecting the sample, administering the questionnaire, tabulating and analyzing the results, and estimating the costs involved. A sample community survey questionnaire is included. (ET)