Average household size in Türkiye fell to 3.08 people in 2025, while the share of one-person households rose to 20.5%, official figures showed on Tuesday.
The figures imply that households have become nearly one person smaller on average since 2008, with one in five homes now occupied by a single resident.
The data pointed to a broader transformation in living patterns, with smaller households gradually replacing crowded family homes.
The share of nuclear families declined from 67.4% in 2014 to 62.7% in 2025, while extended families also became less common over the same period. Homes consisting of larger family groups dropped from 16.7% to 13.5%.
Meanwhile, despite the rise in solo households, many young adults remained in the family home. Among 3.5 million unmarried people between the ages of 25 and 29, around 70% were living with their families in 2025.
The number of divorced couples reached 193,793 in 2025, while custody decisions were made for 191,371 children.
The data also revealed a growing number of elderly people living by themselves. At least one person aged 65 or older was present in 26.1% of households nationwide, while nearly 1.84 million elderly residents were living alone.
Poverty was most widespread among extended families in 2025, with 27.1% living below the poverty line. Nuclear families followed at 20.4%, while households made up of multiple people without a nuclear family structure recorded a rate of 14.3%.
One-person households posted the lowest poverty rate at 9.8%.
On the housing conditions, nearly 29% of residents reported problems such as leaking roofs, damp walls or decaying window frames. More than a quarter struggled to heat their homes because of insulation issues, while environmental pollution affected over one-fifth of the population.
Ownership rates also remained below two-thirds of the population. Around 57.1% lived in homes they owned, while 27% were tenants in 2025.