Mlada Boleslav
- Country:
- Czech Republic
- Continent:
- Europe
Mlada Boleslav's 2025 population is now estimated at 43,416. In 1950, the population of Mlada Boleslav was 23,204. Mlada Boleslav experienced a decrease of -3,012 residents over the past year, marking an annual decline of -6.49%.