The regional energy planning is based on local database of energy consumption. For quality data collecting, the survey of hoseholds in that region, as well as other data sources, is necessary. An exact picture about the total demand of power in hoseholds and the structure of the demand side by the form and use with processing results were obtained. This paper deals with calculation method of peak load of households based on questionnaire, the result of statistical elaboration of peak load (mean values, standard deviations and type of distribution), total connected loads, demand factor and load factor per zones.