4 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Bremerton | 1 | 45,707 | 43,626 | 0.92% | 1,608 | 28 | City |
| Bainbridge Island | 2 | 24,563 | 24,837 | -0.22% | 890 | 28 | City |
| Port Orchard | 3 | 19,995 | 15,629 | 4.57% | 2,073 | 10 | City |
| Poulsbo | 4 | 12,708 | 11,975 | 1.16% | 2,664 | 5 | City |
Bremerton is the largest city in Kitsap County, with a population of 45,707.
Poulsbo is the smallest city in Kitsap County, with a population of 12,708.
There are 4 cities in Kitsap County, Washington.