With the establishment of the ghetto their number increased to about 9,000-11,000 due to deportations of the Jews from the surrounding areas.
[1][2][3] In September 1939 the Judenrat was established in Węgrów, headed by Mordechaj Zejman.
In December 1940 the actual ghetto territory was delineated, into which all Jews were to resettle.
[2] Most of the ghetto was liquidated on September 22, 1942 (which was the Yom Kippur day) as part of the Operation Reinhard: the Jews were transported to Treblinka II, while about 2,000 resisting the deportation were killed.
A group of Jews were left to make the ghetto area habitable for non-Jews.