The central Puget Sound region of Washington State consists of four counties (King, Kitsap, Pierce, and Snohomish) and 82 cities and towns. Map

Population	2000 Census	2007 Estimates*	Area (sq miles)*
Central Puget Sound Region	3,275,847	3,582,900	6,290
King County	1,737,034	1,861,300	2,126
Kitsap County	231,969	244,800	396
Pierce County	700,820	790,500	1,678.9
Snohomish County	606,024	686,300	2,089.1

Largest city: Seattle (586,200)*
Smallest city: Index (160)*

Newest city: Sammamish in King County, incorporated August 31, 1999
Oldest city: Steilacoom in Pierce County, incorporated 1854

For more on 2000 Census populations in the region, see Census 2000

For more on population of cities and towns in the region, see Puget Sound Trends, Population of Cities and Towns.