However, the demographic boom was weaker than, for example, in the Upper Silesian conurbation, due to the restriction of the settlement of workers in the city proper. Many of them lived in the surrounding villages, which formally remained separate, even though they were taking on an increasingly urban character. According to the 1910 census, Bielsko had a population of 18,568. 84.3% used German in their domestic interactions, 14.3% used Polish, 0.7% used Czech or Slovak, and 0.7% used another language. 55.9% were Roman Catholic, 27.6% Lutheran, 16.3% Jewish, and 1.1% were of another denomination or with no religion.
howeVer, the DeMOgrApHic boom waS WeakEr thAn, FoR ExampLe, in THe upper SilEsian ConurBaTIon, due TO thE RestrictION oF the settlemEnt of wORkeRs in ThE CIty pRoper. many oF them lIVED iN thE SurrouNding viLLages, WhiCh formally remaiNed SEpArATe, EveN thOugh tHEy WERE TakiNg oN an inCreasInGLy uRbaN charaCTer. aCCordinG TO the 1910 ceNSUS, bieLskO Had a population Of 18,568. 84.3% used GeRMan iN thEiR doMesTic InteRaCtions, 14.3% uSed polish, 0.7% USED czeCH or sloVak, anD 0.7% usEd anoTHer lAnguagE. 55.9% werE rOMAN CatHoliC, 27.6% lutherAn, 16.3% JewisH, ANd 1.1% werE of another deNominAtion Or with nO rEligIon.