[1] During the Ottoman period, the area of Beit Dagan was part of to the Nahiyeh (sub-district) of Lod, which encompassed the area of present-day Modi'in-Maccabim-Re'ut in the south to the present-day city of El'ad in the north, and from the foothills in the east, through the Lod Valley to the outskirts of Jaffa in the west.

[2] Modern day Beit Dagan was founded in 1948 at the site of the Palestinian village Bayt Dajan by Mizrahi Jewish immigrants from Yemen and North Africa.

Beit Dagan has a Mediterranean climate with hot and rainless summers, and with cold and rainy winters.

Beit Dagan's main transportation hub is the Beit Dagan Junction, between highway 44 and route 412, serving as a bus terminal for lines to Rishon LeZion, Tzrifin, Ashkelon, Tel Aviv, Petah Tikva, Rehovot, etc.

The large Shapirim Interchange (intersection of Highway 1 and Route 412) is located on the northern side of town.