The Central Bureau of Statistics released some stats on Jerusalem ahead of Jerusalem Day 2013. It seems Jerusalem families are on average larger — and living in less space — than their counterparts around the country.
In 2012, 22,800 babies were born in Jerusalem; 64% to Jewish women (35% were born to Muslim women). That represents 13.3% of all babies born nation-wide in that year. The number of births per woman in Jerusalem is also higher than the national average, at 3.93 as opposed to 3.0. When further analysing by affiliation, as of 2011, Jewish women in Jerusalem gave birth to an average of 4.24 babies in their lives versus 2.98 for Jewish women outside the capital. Muslim women in Jerusalem gave birth to 3.71 babies lifetime, as opposed to an average of 3.51 for Muslim women outside the city.
In terms of living conditions, among the six largest cities in Israel, Jerusalem has the highest population density, with an average 1.18 people living there per bedroom in the city. This is in contrast to 0.90 in Ashdod, 0.81 in Petach Tikvah, 0.79 in Rishon l’Tzion, 0.73 in Haifa and 0.74 in Tel Aviv/Jaffa.