The Israeli Democracy Index commissioned in 2013 regarding religious affiliation of Israeli Jews found that 3.9 percent of respondents felt attached to Reform (Progressive) Judaism, 3.2 percent to Conservative Judaism, and 26.5 percent to Orthodox Judaism.
The other two thirds of respondents said they felt no connection to any denomination, or declined to respond.
"Tehillim neged Tilim" ("Psalms [recting] to counter Missiles").
What would be called "Orthodox" in the diaspora includes what is commonly called dati ("religious") or Haredi ("ultra-Orthodox") in Israel.
The former term includes what is called Religious Zionism or the "National Religious" community (and also Modern Orthodox in US terms), as well as what has become known over the past decade or so as Hardal (Haredi-Leumi, i.
A Gallup survey in 2015 determined that 65% of Israelis say they are either "not religious" or "convinced atheists", while 30% say they are "religious".
Israel is in the middle of the international religiosity scale, between Thailand, the world's most religious country, and China, the least religious.
Of the Arab Israelis, as of 2008, 82.7% were Muslims, 8.4% were Druze, and 8.3% were Christians.
Just over 80% of Christians are Arabs, and the majority of the remaining are immigrants from the former Soviet Union who immigrated with a Jewish relative. it gives preferential treatment in certain aspects to individuals who fall within the criteria mandated by the Law of Return, including preferential treatment to Jews and their relatives who seek to immigrate to Israel.
According to The Israel Democracy Institute, as of 2013, approximately 8 percent of Israel’s Jewish population "identified" with Reform and Conservative Judaism, a study by Pew Research Center showed 5% did, while a Midgam survey showed that one third "especially identified with Progressive Judaism", almost as many as those who especially identify with Orthodox Judaism.
The Chief Rabbinate strongly opposes the Reform and Conservative movements, saying they are "uprooting Judaism", that they cause assimilation and that they have “no connection” to authentic Judaism.
In 2007, a poll by the Israeli Democracy Institute found that 27% of Israeli Jews say that they keep the Sabbath, while 53% said they do not keep it at all.
The poll also found that 50% of the respondents would give up shopping on the Sabbath as long as public transportation were kept running and leisure activities continued to be permitted; however, only 38% believed that such a compromise would reduce the tensions between the secular and religious communities.
The survey also showed that a third of Israeli Jews "identify" with progressive (Reform or Conservative) Judaism and almost two thirds agree that Reform Judaism should have equal rights in Israel with Orthodox Judaism.