There are five kingdoms considered to be Vorin Kingdoms. However, when Shallan Davar purchased the book Eternathis, she was only familiar with four kingdoms. The known Vorin Kingdoms are:
The fifth is likely Emul, where the natives worship Jezrien. Sigzil says that scholars from the four recognized Vorin Kingdoms consider the Emuli faith to be a 'splinter' of Vorinism, but the Emuli rather consider traditional Vorinism to be the splinter.