Between the early 1980s and the second decade of the 21st century fertility increased among the Israeli Haredi from 6 to 7 children per woman. Fertility of Jews in Israel, in general, is remarkable when it comes to level (high) and trend (of increase). A very slight increase in fertility was also seen among the religious that are not Haredi: from below 4 to above 4 children per woman, on average. Fertility of secular Jews remained relatively stable above the replacement level (conventionally understood as TFR as a level of 2.1 children per woman).

In Europe, all that time fertility remained at below-replacement level, meaning that European populations would be facing numerical decline in the medium to long term, unless they are boosted by immigration. The contrast between the Haredi and the other Jews, and between Israeli Jews and nations of Europe could not be any greater. It is also clear that the high level and the trajectory of increase in fertility among Jews in Israel are only partly due to the existence of the Haredi. Yes, the presence of the Haredi helps but it is a contributory not exclusive factor shaping Israeli Jewish fertility.

Total fertility rate (an average number of children per woman) in Israel , by subgroup, and in selected European countries.
Sources: (1) Israeli Jews: Hleihel, A. 2017. Fertility among Jewish women in Israel, by level of religiosity, 1979-2017. Working Paper series 101, Central Bureau of Statistics Jerusalem ; (2) Israeli Muslims: Statistical Abstract of Israel 69, 2018; (3) European countries: Human Fertility Database. Quote as: Daniel Staetsky, Jewish World in Data and the actual sources appearing in the caption