Mladá Boleslav has a population of 43,684, making it the 26th largest place we list in Czechia. It is in Central Bohemia.
Mladá Boleslav holds 0.41% of Czechia's 10,527,781 people. Prague, the largest place we list there, is 27 times its size. Twenty years earlier the World Gazetteer recorded 44,417, almost unchanged.
The 2005 figure comes from the World Gazetteer archive restored on this site. The two sources may draw the settlement's boundary differently, so treat the change as indicative rather than exact. Why figures differ.
Nearby in size
| Place | Region | Population |
|---|---|---|
| Děčín | Ústí nad Labem Region | 46,376 |
| Jablonec nad Nisou | Liberec Region | 46,209 |
| Karlovy Vary | Carlsbad Region | 45,500 |
| Prostějov | Olomouc Region | 43,408 |
| Přerov | Olomouc Region | 40,906 |
| Třinec | Moravian-Silesian Region | 38,415 |
Figures are the latest available in GeoNames (CC BY 4.0), which draws on national censuses of varying dates — treat them as recent, not same-year. Country totals are UN World Population Prospects 2024 (medium variant) where the UN lists the country separately; the handful it reports under a parent state keep a GeoNames figure and are marked as such. Sources & method.