Seattle Population 2024 Chart By State. The greatest rate of growth at the start of 2023 belonged to utah (1.50%), followed by idaho (1.43%) and texas (1.34%). Led by seattle, cities in the puget sound area drove an increase in population across the state last year.
Find latest trends in seattle’s population. Seattle is the largest city in the state with a population of 684,451, with a density of 7,962 people per square mile.