Issaquah is a city located in the Washington region of the United States. During the most recent census, Issaquah had a population of 30,434. Issaquah is the 37th most poplulated city in the Washington region, the 1,415th most populated city in the United States and the 10,121st most populated city in the world. Issaquah is in the America/Los Angeles timezone which is 7 hours behind UTC. Issaquah adjusts the hour with daylight savings time during the winter months.