Abstract
This paper shows that the population increased in non-dividing zoning urban planning area before where urban development was not assumed, by analyzing the population change of local conurbation area. Then we clarified that the non-dividing zoning urban planning area shows increase of population, in contrast unused land of the central city increases, where dividing zoning is introduced, by case study of Toyama conurbation area. In addition, it proposed the ideal way of the land use zoning of local conurbation area.