The number of married couples who live separately in the metropolitan city jumped 61 percent to 210,000 households from 1995 to 2010.
Such couples accounted for 9.5 percent of all households in 2010, up from 5.8 percent in 1995.
Meanwhile, married couple-households fell as a proportion of the total from 77 percent to 63 percent during the same period.
This was due to the avoidance of marriage among the young generation and the increasing number of divorces among middle-aged couples, the city said.
By Kim Young-won (wone0102@heraldcorp.com)