King County Zip Code Map

About King County Zip Code Map

Explore the zip code map of King County of Washington state of United States of America.

List of King County Zip Codes

98001
98002
98003
98004
98005
98006
98007
98008
98009
98010
98011
98013
98014
98015
98019
98022
98023
98024
98025
98027
98028
98029
98030
98031
98032
98033
98034
98035
98038
98039
98040
98041
98042
98045
98047
98050
98051
98052
98053
98054
98055
98056
98057
98058
98059
98062
98063
98064
98065
98070
98071
98072
98073
98074
98075
98077
98083
98089
98092
98093
98101
98102
98103
98104
98105
98106
98107
98108
98109
98111
98112
98113
98114
98115
98116
98117
98118
98119
98121
98122
98124
98125
98126
98127
98129
98131
98132
98133
98134
98136
98138
98139
98141
98144
98145
98146
98148
98151
98154
98155
98158
98160
98161
98164
98165
98166
98168
98170
98171
98174
98175
98177
98178
98181
98184
98185
98188
98190
98191
98194
98195
98198
98199
98224
98251
98288
98354

King County Zip Codes

Located in the state of Washington, King County is a mixture of high-tech, urban, and suburban lifestyles surrounded by beautiful landscapes of natural beauty. King County is home to Seattle, the state's largest city, and numerous communities beyond the city limits. As of March 2026, the county population is estimated to be 2,427,007 with an annual growth rate of about 1.82 percent. The region’s advanced economy, high quality of life and great weather make King County an attractive destination for people of all ages. King County covers an area of 2,116 square miles and spans 124 Zip codes. There are over 928,000 households within the county’s boundaries with a median household income of $124,746 and a per capita income of $74,100. The Zip codes also separate various neighborhoods within the county allowing residents, businesses, schools and medical facilities to receive and send their mailing quickly and efficiently. This creates a high quality of life for young families, working professionals and senior citizens alike through quality educational and medical resources.

Geographic and Demographic Distribution

Urban Core: Seattle's Dynamic ZIP Codes

Seattle is the county seat of King County in the state of Washington and is located at the county’s center. Seattle’s ZIP codes are located in the 981xx group and cover almost every aspect of a city with old history and new technology. ZIP codes in Seattle range from the business center of downtown in 98101 to single-family homes in 98115 and 98103, covering over 800,000 people in just the city proper. The median income in Seattle’s ZIP codes is $120,000 or more in some areas such as 98102 surrounding Capitol Hill and it is common to see expensive homes, boutiques and trendy restaurants right next to a low income single mother living in public housing. Other areas that are expensive include 98105 which surrounds the University of Washington and has a median age of 35. This area has a high percentage of people that attended college and has an education attainment rate of about 70%. Hispanic or Latino people make up about 11.4 percent of the county people in other Seattle ZIP codes such as those in 98118 represent a variety of ethnic groups including large Asian and African American populations. Seattle’s world class schools, colleges and hospitals, along with its superior transit system and abundance of community organizations provide residents with opportunities for neighborhood involvement and lifelong learning.

Eastside Suburbs: Innovation and Affluence

All of the Eastside suburbs are located east of Lake Washington and fall within the 980xx ZIP codes ranging from 98004 through 98009 in Bellevue to 98052 in Redmond – the high tech capital of the world and a haven for families. More than 400,000 people reside within the boundaries of the Eastside suburbs in King County, and within the 98052 zone that is home to numerous software and biotech corporations, the population is approximated at about 80,717. Median household income in these areas often reaches $150,000 or more. The median household income for the 98039 zone in Medina is $250,001 or higher, and the poverty rate here is an average of only 8.59 percent, which is far lower than any of the surrounding areas, and many of the residents of these neighborhoods are highly educated; with more than 55% holding a baccalaureate degree or higher. These areas have a high concentration of families and are ideal in terms of their tranquil setting and abundance of parkland, as well as proximity to other areas that offer quality educational programs and opportunities for families to build successful lives in an affluent environment. With 18.9 percent of King County residents under 18 years of age, it’s easy to see why the suburbs of the Eastside are chosen time and again by families wishing to give their children an exceptional place to grow.

Southern Regions: Growth and Diversity

Our ZIP code map showing the breakdown of poverty levels by county highlights areas where residents are most at risk in the nation. In the southern part of King County, we looked at ZIP codes 98001, Auburn, and 98032, Kent. Both areas experience a high level of growth and diversity where affordability meets opportunity. The population in 98023, which is the ZIP code for the city of Federal Way, is estimated at about 50,000, while the median household income for 98001 in Auburn is about $107,218 with several areas designated as first-time buyer starter homes with affordable payments for young families as King County has a poverty level of 8.38% or about 117,000 residents. Residents of King County are mostly Caucasian but there is a growing Hispanic and Asian population that has created one of the more diverse populations nationwide in which 13% of the population speaks English less than fluently. This provides a unique mix of cultures that not only preserves the human element within a neighborhood but in many ways unites residents behind common goals.

Rural and Outlying Enclaves: Serenity and Heritage

Life in King County can be stressful, and it’s sometimes good to get away from the hustle and bustle of city life. Head just a bit outside the metropolitan area and you’ll find yourself in some of the most beautiful and historic rural areas in King County, such as Vashon Island (98070) and North Bend (98045). The relatively small population of about 10,000 residents in 98070 ZIP code and about 8,500 in 98045 show that these communities have median household incomes of $148,692 and $123,750 respectively. The county’s primary focus on agriculture and recreational activities also maintains the historical essence of these areas, which have a median age of 37.4. These communities make up about 10% of the county’s population, and with a household density of 6 people per 10 acres, they offer a lower density of living, with 14.6% of the population being 65 years and older. This creates intergenerational communities that focus on sustainability and the preservation of traditional ways of life, while still allowing them to be part of a larger evolving region.

Economic and Social Insights

America's economic landscape in King County's ZIP codes has proven to be one of dramatic diversity. High tech industries here have turned Redmond and Bellevue into some of the most affluent places in the country, with a per capita income of $74,100 or more, with over 70,840 businesses, supporting 1,315,823 jobs and $144 billion in annual payroll. But at the other end of the spectrum, 13 census tracts in King County have median incomes of $50,000 or less, and in a time when every policy needs to be examined for its fairness and ability to grow the economy, the county's ZIP codes remind us of the need for equitable solutions to our diversity. Not surprisingly, education is a high priority here. Some 55.93 percent of working-age adults — 55.93 percent — in King County's ZIP codes hold a bachelor's degree or higher. And the feeling of community here clearly transcends ZIP codes.

Future Prospects and Community Vitality

Future ZIP Codes in King County The future of King County’s ZIP codes is unclear, but estimated projections give us a population of close to 2,470,405 by 2027 upon further human development and diversity. With family’s moving in and out of neighborhoods on the Eastside in an attempt to find affordable housing on one end and families looking for peace and quiet on the other the theme of community is present throughout and regardless of the area in which you reside you are no doubt playing a part in the story of this incredible region. Through the use of accurate data provided by the United States Census Bureau we are able to see that all policy and development decisions are made with the resident of King County in mind and with their future in mind while striving to meet their needs and help them accomplish their dreams and achieve their goals while aiding them in achieving the vision of King County for future generations to come.