Population of OSTROWIEC ŚWIĘTOKRZYSKI since the 17th Century
Based on the research in Polish by Wojtek Mazan (excerpts translated from Polish) and additional sources.
1662 - Registers show that in Ostrowiec there are 304 Christians and 81 Jews
1787 - 1,033 Christians and 354 Jews live in Ostrowiec
1810 - Ostrowiec has 318 houses and 1,608 inhabitants (including 985 Jews)
1820 - Ostrowiec has 225 houses and 1,512 inhabitants (including 903 Jews)
1827 - Ostrowiec has 270 houses and 1,913 residents (in including 1039 Jews)
1842 - Population: 3,396 (including 2579 Jews)
1860 - Population: 3,366 (including 2675 Jews)
1890 - Population: 5,480 (including 4,677 Jews)
1897 - Population: 9,748 (including 6,146 Jews)
1910 – Population: 13,913 (including 8,122 Jews)
1921 - Population: 19,705 (including 10,095 Jews)
1931 - Population 25,908 (including 9,881 Jews)
1939 - Population: 30,071 (including 11,079 Jews)
Jewish population of Ostrowiec during the Holocaust years:
1939-1942- Jewish population increased due to Jews being forcefully transferred from surrounding towns to the Jewish Ghetto.
Oct. 1942 - Liquidation/deportation of 11,000 Jews to Treblinka. Jewish population was reduced to only a couple thousand Jews.
Jan. 1943 - Second major deportation of Jews, further reducing the Jewish population.
July/Aug 1944 - Deportation to Auschwitz of almost all remaining Jews
1945 - After Ostrowiec was liberated, about 200 Jewish survivors returned home. Almost all left within a year.