Fetching details from the dictionary...
number of households
市内の世帯数を調べた。
I looked up the number of households in the city.
この地域の世帯数が年々増えている。
The number of households in this area is increasing year by year.
一人暮らしの世帯数は都市部で特に多い。
Single-person households are especially numerous in urban areas.