Ukraine's population has fallen from 52 million in 1991 to at most 25 million today.
68% confidence
Foreign AffairsUkraine
Omissions
The current population of Ukraine is widely estimated at 28–39 million, i.e. clearly above the claimed 25 million; the claim selects the lowest available estimate (de facto population of government-controlled territory only) without stating this narrower metric.
The 1991 figure is sometimes given as 51.7 million (euobserver) or 52.1 million (ThinkGlobalHealth); both support the '52 million' starting point.
No source used specifies a figure as low as '25 million' for the total population of Ukraine in 2025–2026; that figure appears only as a projection for 2050 or as a post-war/controlled-territory estimate.
SecondaryUkrainska Pravda (citing Deputy PM)"Ukraine's population has declined from 52 million in 1991 to 32 million in 2024, mainly due to migration and the ongoing war."
SecondaryReuters"Government officials estimate Ukraine's diaspora at some 25 million people. They put the current population in Ukraine at 32 million, down..."
SecondaryEUobserver"...Ukraine was about 28 million people at the beginning of 2026. At the end of 1991, the population was 51.7 million people."