Abstract
This paper proposes an estimation method of household characteristics changes by small zone in a city. Number of household by family type and by age of the head of family is defined as the household characteristics of a zone. The historical changes over twenty years of the household characteristics by POPULATION CENSUS tract in Sendai city were successfully estimated using Frater method. Major findings of the study are as follows: 1) The proposed method was confirmed to have good accuracy. 2) Aged family have been increasing in the tracts in urban center and nearby. 3) It was proved that this trend was deeply depended on the trend of housing supply in the city.
