Kirkland is a city located in the Washington region of the United States. During the most recent census, Kirkland had a population of 48,787. Kirkland is the 19th most poplulated city in the Washington region, the 839th most populated city in the United States and the 7,037th most populated city in the world. Kirkland is in the America/Los Angeles timezone which is 7 hours behind UTC. Kirkland adjusts the hour with daylight savings time during the winter months.