This study seeks to determine whether socio-demographic and geographical variables matter in understanding pro-environmental behavior in Nigeria. The Wave 6 World Value Survey data on Nigeria were analyzed with t-test, analysis of variance and stepwise regression. Results indicated that significant differences and relationships exist in pro-environmental behavior across socio-demographic and geographical variables of respondents. Social class, membership of environmental organization, region and income were found to be predictors of pro-environmental behavior. The study concluded that these variables are important in understanding people's pro-environmental behavior and must be considered in the design of any interventions geared to improve pro-environmental behavior amongst Nigerians.