Seoul’s household landscape is shifting as single-person homes become the city’s most common household type, according to a 2024 report. Nearly 1.66 million residents now live alone - about 40% of all households - while two-person households make up 26.2% and four-person homes 12.3%. An aging population underscores the trend: people 60 and older represent 20.2% of residents, and more than 30% of households include someone 65 or older. Marriages, which plunged during the pandemic, rebounded to 42,471 in 2024, with an average first-marriage age of 34.3 for men and 32.4 for women; international marriages comprise roughly 10%. Divorces declined overall, but the average age at divorce has risen, with one-quarter now among those 60 and older. Meanwhile, households with young children have fallen over 40% since 2016, reflecting persistently low birth rates. City officials plan inclusive policies to counter social isolation, support young adults’ housing needs, and foster a more child-friendly environment.