Several reports and analyses published in Israel estimate that between between 21% and 31% of Israelis are living below the poverty line. The Israel National Insurance Institute claimed that ONLY 1,709,300 Israelis lived below the poverty line, among them 776,500 children http://www.ynetnews.com/articles/0,7340,L-4737047,00.html
The LATET NGO Alternative and Multidimensional Poverty Index for 2015 in reflects a grim reality: 2,624,000 people live in poverty in Israel (31.9%), of whom 1,626,000 are adults (30.2%) and 998,000 are children (35.2%). https://www.latet.org.il/upload/files/145228154756900ecb59e73801948.pdf
Taub Center for Social Policy Studies in Israel, A Picture of the Nation Israel’s Society and Economy in Figures, 2015, http://taubcenter.org.il/wp-content/files_mf/pictureofthenation2015english.pdf