Kitsap County, Washington

County seat: Port Orchard · Population 283,374 (2025) · 395 sq mi

Kitsap County is the 7th most populous of Washington's 39 counties, with 283,374 people (2025 estimate). Its county seat is Port Orchard. The map shows its 4 cities and towns and the 6 neighboring counties.

Map of Kitsap County, Washington with cities, towns and the county boundary
Kitsap County, Washington with its cities and towns, unincorporated communities (CDPs) and neighboring counties. Boundaries: U.S. Census Bureau, 2025. Free to use with attribution (CC BY 4.0).
Download PDF (Letter) 171 KBPNG image 178 KBWashington county map

Kitsap County facts

County seat
Port Orchard
Population (2025 estimate)
283,374 +2.8% since 2020
Land area
395 sq mi 36th largest of 39
Water area
171 sq mi
Population density
717 per sq mi
Established
1857
Named after
Chief Kitsap leader of the Suquamish people
Largest city
Bremerton 45,482
Median household income
$104,158
Cities and towns
4 plus 24 CDPs
ZIP codes
22
Time zone
Pacific
FIPS code
53035

Cities and towns in Kitsap County

Kitsap County has 4 incorporated cities, towns and villages. Populations count the people living inside Kitsap County; cities that cross a county line also list the other counties.

NameTypePopulation 2025Also in
BremertonCity45,482
Bainbridge IslandCity24,691
Port Orchard (county seat)City19,839
PoulsboCity12,749

Unincorporated communities (CDPs)

Census-designated places are communities without their own city government; the county provides their services.

CommunityPopulationAlso in
Silverdale20,685
Parkwood6,873
Tracyton6,137
Bangor Base6,112
Manchester5,956
East Port Orchard4,725
Bethel4,394
Suquamish4,084
Indianola3,468
Hansville3,384
Chico3,336
Navy Yard City2,672
Kingston2,496
Burley2,443
Enetai2,387
Southworth2,286
Kitsap Lake2,186
Lofall1,800
Rocky Point1,716
Erlands Point854
Seabeck787
Port Gamble Tribal Community624
Gorst550
Keyport221

ZIP codes in Kitsap County

22 ZIP codes reach into Kitsap County. ZIP codes ignore county lines, so some also cover a neighboring county.

Population of Kitsap County, 2020–2025

Kitsap County grew by 7,760 people (+2.8%) between April 2020 and July 2025: 1,403 more births than deaths and a net gain of 6,307 people from migration.

Year (July 1)Population
2020275,811
2021276,682
2022277,805
2023277,358
2024280,728
2025283,374

Neighboring counties

Printable Kitsap County map

The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.

Paste this code to embed the map on your site:

Sources

Back to the Washington county map with all 39 counties. Found an error? Tell us.