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To examine associations between environmental and lifestyle factors and overweight or obesity.

A cross-sectional survey and an environmental scan of recreational facilities.

Metropolitan Perth, Western Australia.

Healthy sedentary workers and homemakers aged 18 to 59 years (n = 1803) living in areas within the top and bottom quintiles of social disadvantage.

Four lifestyle factors, one social environmental factor, and five physical environment factors (three objectively measured).

After adjustment for demographic factors and other variables in the model, overweight was associated with living on a highway (odds ratio [OR], 4.24; 95% confidence interval [CI], 1.62–11.09) or streets with no sidewalks or sidewalks on one side only (OR, 1.35; 95% CI, 1.03–1.78) and perceiving no paths within walking distance (OR, 1.42; 95% CI, 1.08–1.86). Poor access to four or more …