Data Last Updated: November 1, 2024

KING County, WA ZIP Codes

KING County, WA Covers 120 ZIP Codes

ZIP CodeClassificationTimezoneArea Code(s)
98001GeneralPacific253
98002GeneralPacific253
98003GeneralPacific253
98004GeneralPacific425
98005GeneralPacific425
98006GeneralPacific425
98007GeneralPacific425
98008GeneralPacific425
98009P.O. BoxPacific425
98010GeneralPacific360/564
98011GeneralPacific425
98013P.O. BoxPacific206
98014GeneralPacific425
98015P.O. BoxPacific425
98019GeneralPacific425
98022GeneralPacific360/564
98023GeneralPacific253
98024GeneralPacific425
98025P.O. BoxPacific425
98027GeneralPacific425
98028GeneralPacific425
98029GeneralPacific425
98030GeneralPacific253
98031GeneralPacific253/425
98032GeneralPacific253/425
98033GeneralPacific425/206
98034GeneralPacific425/206
98035P.O. BoxPacific253/425
98038GeneralPacific425
98039GeneralPacific425
98040GeneralPacific206
98041P.O. BoxPacific425
98042GeneralPacific253/425
98045GeneralPacific425
98047GeneralPacific253
98050P.O. BoxPacific425
98051GeneralPacific360/564
98052GeneralPacific206/425
98053GeneralPacific425/206
98055GeneralPacific425
98056GeneralPacific425
98057GeneralPacific425
98058GeneralPacific425
98059GeneralPacific425
98062P.O. BoxPacific206/253
98063P.O. BoxPacific253
98064P.O. BoxPacific253/425
98065GeneralPacific425
98070GeneralPacific206
98071P.O. BoxPacific253
98072GeneralPacific425
98073P.O. BoxPacific206/425
98074GeneralPacific425/206
98075GeneralPacific425
98077GeneralPacific425
98083P.O. BoxPacific425/206
98089P.O. BoxPacific253/425
98092GeneralPacific253
98093P.O. BoxPacific253
98101GeneralPacific206/253/360/425/564
98102GeneralPacific206/360/425/564
98103GeneralPacific206
98104GeneralPacific206/253/360/425/564
98105GeneralPacific206
98106GeneralPacific206
98107GeneralPacific206
98108GeneralPacific206
98109GeneralPacific206/425
98111P.O. BoxPacific206/425
98112GeneralPacific206/425
98113P.O. BoxPacific206
98114P.O. BoxPacific206/425
98115GeneralPacific206
98116GeneralPacific206
98117GeneralPacific206
98118GeneralPacific206
98119GeneralPacific206
98121GeneralPacific206/360/425/564
98122GeneralPacific206/425
98124P.O. BoxPacific206/425
98125GeneralPacific206
98126GeneralPacific206
98127P.O. BoxPacific206/253/360/425/564
98129UniquePacific206/425
98131GeneralPacific206
98133GeneralPacific206/425
98134GeneralPacific206
98136GeneralPacific206
98138P.O. BoxPacific206/425
98139P.O. BoxPacific206/253/360/425/564
98141P.O. BoxPacific206/253/360/425/564
98144GeneralPacific206
98145P.O. BoxPacific206/425
98146GeneralPacific206/253
98148GeneralPacific206/253
98154GeneralPacific206/253/360/425/564
98155GeneralPacific206/425
98158GeneralPacific206
98160P.O. BoxPacific206/425
98161GeneralPacific206/425
98164GeneralPacific206/425
98165P.O. BoxPacific206
98166GeneralPacific206/253
98168GeneralPacific206/425/253
98170UniquePacific206/425
98174GeneralPacific206/425
98175P.O. BoxPacific206
98177GeneralPacific206/425
98178GeneralPacific425/206/253
98181UniquePacific206/425
98185UniquePacific206/425
98188GeneralPacific425/206/253
98190UniquePacific206/425
98191UniquePacific206/425
98194P.O. BoxPacific206/253/360/425/564
98195UniquePacific206
98198GeneralPacific206/253
98199GeneralPacific206
98224P.O. BoxPacific425
98288P.O. BoxPacific425

Timezone(s): All Time Zones found within this county. In the United States, there are 7 standard time zones which are, from west to east: Hawaii-Aleutian, Alaska, Pacific, Mountain, Central, Eastern, Atlantic. Also included in U.S. Territories are Samoa, Guam and Palau. The alignment between ZIP codes and time zones is not perfect. A single time zone can cover multiple ZIP codes, and, conversely, a single ZIP code could theoretically span across multiple time zones, although this is quite rare.Pacific
 
Population: The total Population for King County, WA, taken from the 2020 U.S. Census DP1. This population total includes all people residing in and counts them regardless of citizenship or immigration status. Include are U.S. Citizens, permanent residents, temporary migrants, and undocumented workers. The total population represents people who live in the state, not just those present on the day of the census. State Population is critical in determining political representation, funding allocation, planning and policy-making, and demographic analysis. 2,269,675 (More Details)
Male Population: The sum of all males for King County, WA from the 2020 U.S. Census DP1. Each respondent self-identified their gender on the survey, as they were asked to indicate their gender assigned at birth. The male population information is important for healthcare planning, policy making, social research, and economic planning and development.1,136,647
Female Population: The sum of all females for King County, WA from the 2020 U.S. Census DP1. Each respondent self-identified their gender on the survey, as they were asked to indicate their gender assigned at birth. The female population information is important for healthcare planning, policy making, social research, and economic planning and development.1,133,028
Median Age: The median age of the total population of this county. Median age is not a future prediction, it is the actual number from the 2020 Census. Median age is the middle age of the population. Half the population is older than the average age and half is younger.37
 
ZIP Codes: The total number of ZIP Codes which at least partially fall inside King County, WA. Did you know that approximately 23% of ZIP Codes cross county lines? Several even cross State lines. ZIP Codes do not follow other geographic boundaries because they were created exclusively for the expedient delivery of mail.120
Cities: The total number of City names which are associated with ZIP Codes that partially or wholly cross into King County, WA. Alongside the official city name, USPS also recognizes certain alternate names for cities or towns that can be used in mailing addresses. These may include towns, villages, abbreviations, names in other languages, or names that have been commonly used historically.32
Counties: The total number of counties associated with ZIP Codes that are at least partially part of King County, WA.1
Area Codes: The total number of Area Codes associated with ZIP Codes in King County, WA. Area codes are used in the North American Numbering Plan (NANP) to facilitate phone routing. Each area code identifies a specific geographic area (usually part of a state or territory) and allows calls to be routed to the correct area. There are approximately 350 area codes in use in the United States.5
 
Total Area: The approximate amount of area covered by King, WA in square miles. This includes all land and water areas within the legal county boundaries.2,307 square miles (county)
Land Area: The approximate amount of land area covered by King, WA in square miles. Land area data provided by the Census Bureau are based on geographic boundaries that include the mainland, islands, inland, coastal, Great Lakes, and territorial waters associated with each state. Land area is important in many types of statistical analysis. For example, population density, the number of people per unit of land area, is a commonly used statistic based on this data. Land area measurements are also important for urban planning, environmental studies, and economic analysis. 2,115 square miles (county)
Water Area: The approximate amount of water area covered by King, WA in square miles. Calculations for water area take into account inland bodies of water, coastal regions, Great Lakes, and territorial sea waters. This encompassed features such as lakes, reservoirs, rivers, and coastal water bodies. Water surface data are especially important for environmental and conservation planning, water resource management, transportation, and recreational planning.191 square miles (county)

KING, WA Demographic Information

Total population of KING County, WA: Total Population from the 2020 Census. This reflects the exact population of the geographic area at that point in time, not future estimates, regardless of citizenship or immigration status. It is intended to count all persons living within the geographic area, not just those present on the day of the census.2,269,675
Male population of KING County, WA: The Male Population from the 2020 Census. This is not a forecast for the future, but an exact count for this geographic area at the time of the Census. Each respondent self-identified their gender on the survey, as they were asked to indicate their gender assigned at birth. The Male Population information is important for healthcare planning, policy making, social research, and economic planning and development.1,136,647
Female population of KING County, WA: The Female Population from the 2020 Census. This is not a forecast for the future, but an exact count for this geographic area at the time of the Census. Each respondent self-identified their gender on the survey, as they were asked to indicate their gender assigned at birth. The Female Population information is important for healthcare planning, policy making, social research, and economic planning and development.1,133,028
Median age (years): The Median Age of the Total Population from the 2020 Census for this geographic area. Median age is not a future prediction, it is the actual calculated age from the 2020 Census. Median age is the middle age of the population. Half the population is older than the average age and half is younger. Median Age can relate how young or old a geographic area is compared to others. If one area is 44 and the other is 40, then the first are is an average of 4 years older.36.9
White Population: The White Population is an exact count from the 2020 Census for this geographic area. The numbers for the White Population are not future projections. On the 2020 U.S. Census questionnaire, people were asked to check all races which applied to them, including White. This count includes all who selected White/Caucasian in their response, even if they selected another race as well.1,273,054
Black Population: The Black Population is an exact count from the 2020 Census for this geographic area. The numbers for the Black Population are not future projections. On the 2020 U.S. Census questionnaire, people were asked to check all races which applied to them, including Black or African American. This count includes all who selected Black or African American in their response, even if they selected another race as well.151,468
Indian Population: The American Indian and Alaska Native Population is an exact count from the 2020 Census for this geographic area and not estimates for the future. On the 2020 U.S. Census questionnaire, people were asked to check all races which applied to them, including American Indian and Alaska Native. This count includes all who selected American Indian and Alaska Native in their response, even if they selected another race as well.19,073
Asian Population: The Asian Population is an exact count from the 2020 Census for this geographic area, not future projections. On the U.S. Census questionnaire, people were asked to check all races which applied to them, including Chinese, Filipino, Asian Indian, Vietnamese, Korean, Japanese, or Other Asian. This count includes all who selected one of these options in their response, even if they selected another race as well.452,475
Hawaiian Population: The Hawaiian or Pacific Islander Population is an exact count from the 2020 Census for this geographic area and are not future projections. On the 2020 U.S. Census questionnaire, people were asked to check all races which applied to them, including Native Hawaiian and Pacific Islander. This count includes all who selected either Hawaiian or Pacific Islander in their response, even if they selected another race as well.20,022
Hispanic Population: The Hispanic Population is an exact count from the 2020 Census for this geographic area and is not an estimate or future projection. On the 2020 U.S. Census questionnaire, people were first asked for their Ethnicity, including if they were from Hispanic, Latino, or Spanish Origin, including Mexican, Mexican American, Chicano, Puerto Rican, Cuban, or other ethnic origin. This count includes all who affirmed that they were part of this ethnic origin. Respondents who selected this option were also asked to select a race separately and would be counted once in this number as well as the race they chose as well. From the U.S. Census definition, Hispanic is an ethnic origin and not a race.243,021
Median age (Male): The Median Age of all Males from the 2020 Census for this geographic area. The Male Median Age is the actual average from the 2020 Census, not an estimate or future projection. Median Age is the average age of the population. Half of the population is older than the average age and the other half is younger. Gender is self-reported by individuals when asked about their sex at birth.36.2
Median age (Female): The Median Age of all Females from the 2020 Census for this geographic area. The Female Median Age is the actual average from the 2020 Census, not an estimate or future projection. Median Age is the average age of the population. Half of the population is older than the average age and the other half is younger. Gender is self-reported by individuals when asked about their sex at birth.37.7
Total Households: Total Number of Households from the 2020 U.S. Census for this geographic area. A Household includes everyone living in a residential housing unit. This includes families, roommates in a single residence, or a person living alone.917,764
Married-Couple Households: Total Married-Couple Households is based on the 2020 U.S. Census and is not an estimate. Under the U.S. Census Bureau definition, Married Couple Households refers to the count of households where the householder and his or her spouse are listed as members of the same household. It does include same-sex marriage households and the households themselves may also include other individuals, such as children or other relatives. 
Average Household Size for KING County, WA: The Average Household Size, is obtained by dividing the number of people in Households (excluding those in group quarters, nursing home, prisons, and dorm rooms) by the number of Households. A Household includes everyone living in a residential unit. Those who do not live in a household are classified as living in group accommodation. This value is an estimate from the U.S. Census ACS (American Community Survey) and is updated yearly.2.42
Average family size of KING County, WA: Average Family Size is calculated by dividing the number of people in a Family Household by the number of Family Households. The U.S. Census Bureau defines family households as households consisting of two or more individuals who are related by birth, marriage, or adoption. They also may include other unrelated people. Non-family households consist of people who live alone or who share their residence with unrelated individuals. The Average Family Size only looks at the households classified as Family Households. This value is an estimate from the U.S. Census ACS (American Community Survey) and is updated yearly.3.03
Total housing units for KING County, WA: The total number of Housing Units is the number of occupied units + the number of vacant units. Ownership is defined by whether the unit is occupied by an owner or by a tenant. Owner occupancy means that the owner lives in the unit. This value comes from the 2020 U.S. Census and is not a projection or estimate.969,234


KING County, WA Covers 32 Cities

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