The theory and procedures for measuring geographical differentials in cost of living, amenities, wages, and cost of government services are presented. These differences are important to individuals seeking optimal locations, and within groups seeking equitable treatment in locational assignments. Indexes for these factors are reported for 579 cities together with state averages. Spatial price differences for the goods and services purchased by families for everyday living are reported by a geographical Cost of Living Index. Four parts are as follows: (1) cost of living (cost index theory and guides for compilation, cost of living defined and nature of differences, cost of living pricing, and cost of living index compilation); (2) amenities (amenity concepts and theory and regional preference curves and amenity measurement); (3) wages (measurement of prevailing wages, equilibrium wages under pure competition, and prevailing wages and regional amenities); and (4) cost of public services (cost of government services index). Two appendices are regression analysis to predict consumption and home ownership costs and state and local government budget. Eight text tables are attached. Contains 43 references. (SM)