The five largest cities in Israel, whose population is bigger than 200,000 people, are:
Jerusalem - 733000 people - The capital of Israel, dates back to 1000 B.C. built over 3000years ago by king david.
Tel-Aviv-Yafo - 380000 people - The economical and cultural center of Israel.
Haifa - 266000 people - A major port and industrial city.
Rishon Lezion - 222000 people.
Ashdod - 204000 people.
Please see the Israeli Central Bureau of Statistics' web site in the links for lots of additional, well, statistics about Israel.