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We propose using a class of community-level measures--environmental indicators--as part of the evaluation of community-based health-promotion programs. Community-level measures of health-related behavior can be divided into three conceptual categories. The first two categories comprise statistical aggregates (e.g., means, sums, percentages) of measurements made on individuals, distinguished by whether individual-level covariates are also available. Individual-disaggregated measures include covariates, such as a comprehensive survey of health-risk behavior, including demographic information; individual-aggregated measures, such as sales data, do not. Our main focus is on the third category, environmental indicators, derived from observations of the community environment. Environmental indicators measures aspects of the physical, legal, social, and economic environment in a community that reflect, and likely influence, the attitudes and behavior of individual community members. They also measure an important intermediate step in community-based health-promotion interventions, namely environmental factors that programs target to modify individual attitudes and behavior. We present examples of environmental indicators for tobacco use and diet.