Housing conditions 1-3: Situation of Urbanization

The area of the population concentration area (*) in Yokohama City occupied 24.6% of the city area in 1960 (Showa 35), but it was 80.5% in 2020 (Reiwa 2), and urbanization is progressing (Figure 1-3-1).
※Population-intensive district…Japanese translation of Densely Inhabited District. An urban area set by the census, which refers to an area with a population density of 4,000 or more per square kilometer adjacent to each other within the boundaries of municipalities and has a population of 5,000 or more. Population-intensive districts are generally used in urban planning administration as a concept of urban areas.

Figure 1-3-1 Trends in Population Concentrated Areas in Yokohama City

Materials: Ministry of Internal Affairs and Communications "1960 (Showa 35)-2020 (Reiwa 2) Census"

Looking at changes in land use, the ratio of residential land is increasing. In 1960 (Showa 35), the ratio of residential land was 21.4%, but in 2021 (Reiwa 3), it accounted for 74.8%, and from 72.4% in 2011 (Heisei 23), 10 years ago, residential land conversion is progressing.
Meanwhile, agricultural land decreased from 41.2% to 10.4%, and forest and wilderness decreased from 36.3% to 6.6% during the same period (Fig.1-3-2).

Fig. 1-3-2 Figure of land area and ratio by land type in Yokohama City

Materials: Policy Bureau, Yokohama City Statistical Report