Bible Verses About Synagogues: Sometimes several, in the same city

Now there arose some, of that which is called the synagogue of the Libertines and of the Cyrenians and of the Alexandrians and of them that were of Cilicia and Asia, disputing with Stephen.

And asked of him letters to Damascus, to the synagogues: that if he found any men and women of this way, he might bring them bound to Jerusalem.