ZIP Code 98345 in Keyport, WA

Data Last Updated: February 1, 2026
City:Keyport, Washington
County:Kitsap County
Timezone:Pacific (GMT -08:00)
Local Time:10:16:00 AM
Population:576 [See All]
Area Codes:360 / 564
Classification:PO Box
Coordinates:47.6984, -122.6236
Land Area:0.5 sq mi
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98345 Keyport, WA - Puget Sound Naval Community

ZIP Code 98345, Keyport

Vacation Island
LocationKitsap County, WA
Area0.5 sq mi
Population576
Households227
PO Boxes444 Regional Hub (196%)
Median Age33.6 years
ZIP CreatedBefore Oct 2004
Key Facts
  • This is a PO Box Only Zone where there is no alternative mail delivery method across the 0.53 square mile territory
  • The post office maintains 444 PO Boxes for 227 households, creating a 1.96x adoption rate that serves both local residents and surrounding communities
  • Despite having both city and rural carrier routes serving 171 street addresses, PO Box remains the required delivery method
  • The Naval Undersea Warfare Center facility gives this small waterfront community its military-influenced character
  • With median household income of $133,086 and median home values of $621,300, Keyport is an affluent community for its size
  • 83 residents (14% of the population) live in group quarters, likely military housing or dormitories associated with the naval facility

A Small Waterfront Community

Keyport sits on a small peninsula in Kitsap County, Washington, where 576 residents share just over half a square mile along Puget Sound. This isn't a typical vacation island community. The Naval Undersea Warfare Center facility anchors the area, and the post office serves both the small residential population and the surrounding region.

PO Box Only Zone

The Keyport post office is a PO Box Only Zone, meaning there's no alternative mail delivery method for the 227 households here. With 444 PO Boxes maintained for those 227 homes, the adoption rate reaches 1.96x. That's nearly double, indicating the post office serves residents from beyond the immediate ZIP boundary. People from neighboring communities without carrier delivery use Keyport's post office as their mail access point.

Mixed Delivery Patterns

Mail delivery within Keyport follows a mixed pattern. The ZIP+4 records show both city carrier routes (120 records across 2 routes) and rural carrier routes (50 records on 1 route). Dowell Street accounts for the most delivery points with 65 records, followed by State Highway 308 NE with 45 records. Despite this street delivery infrastructure, PO Boxes remain the primary option.

Demographics and Economy

The population is relatively young with a median age of 33.6 years. About 14% of residents (83 people) live in group quarters, all classified as noninstitutionalized, which likely includes military housing or dormitories. The community is 81% white, with modest diversity: 10% Hispanic, 4% Black, and 7% identifying as two or more races.

Keyport's economy reflects its waterfront military character. Median household income stands at $133,086, well above the national average. Median home values reach $621,300. Among workers, 70 are employed in transportation and warehousing (likely Navy-related), 33 in education and healthcare, and 13 in public administration. The community has 21 business establishments employing 300 people total.

Compact Waterfront Geography

The town's compact footprint (0.53 square miles of land, 0.23 square miles of water) and waterfront location shape its postal logistics. With 227 occupied homes and 18 vacant units out of 245 total housing units, vacancy rates are low at 7%. Only 9 units are held for seasonal use, confirming this isn't a vacation-driven community despite its classification.

Mailing to Keyport

Mail to Keyport residents should be addressed using a PO Box. The facility code P indicates a full post office, and the ZIP has been in use since before October 2004 when tracking began. Street addressing exists for delivery purposes, but the PO Box Only Zone designation means that's the required format for residential mail.

Street Name Patterns

Waterfront Location Numbered Streets Highway Corridor

Street names include simple numbered streets (2nd St, A St, B St) and waterfront references, typical of a small historic naval community.

Nearby Areas

Madrona Heights Seabold Agate Beach Battle Point Venice
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Population & Demographics


ZIP Code 98345 has 576 residents and 227 households (average 2.17 persons per household). The median age is 33.6 years, younger than the state (38.1) and younger than the nation (38.8). The gender split is 54.2% male and 45.8% female, which is higher than the national male share (49.1%), making this a male-majority area. Largest groups are White (80.9%, much higher than the state average of 66.6% and well above the national average of 61.6%) and Hispanic or Latino (8.5%); Hispanic or Latino residents make up 8.5%, which is much lower than the national average (18.7%).

Explore More:Population Over TimeBy Age & GenderBy RaceBy GenderNativity & Citizenship

Source: U.S. Census 2020 Demographics & Housing Characteristics (DHC) and U.S. Census 2011-2024 American Community Survey (ACS) 5-Year Estimates.
2020 Population:576Source: Census DHC
2024 ACS Population Estimate:221Source: Census ACS
2026 ZC Population Estimate:0Source: ZIP-Codes.com
Population Density:1,152.0 people per sq mile
Average Income:$0Source: Census ACS
Households:227Source: Census DHC
Average House Value:$524,000Source: Census ACS
Persons Per Household:2.17Source: Census DHC
Average Family Size:2.50Source: Census ACS

Population Over Time (with 2010 & 2020 Census Benchmarks)


Group201020112102201320142015201620172018201920202021202220232024
Census ACS Population Estimate--345378466543488442457422430339270284272221
Decennial Census554------------------576--------
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP05. DEMOGRAPHIC AND HOUSING ESTIMATES

Population by Age & Gender (Total, Male, Female)


Median Age: 33.6

Male Median Age: 24.8

Female Median Age: 43.6

Group< 55-910-1415-1920-2425-2930-3435-3940-4445-4950-5455-5960-6465-6970-7475-7980-8485+
Male1415929912315218771511246872
Female20107121226142416211710212717604
Total34251641103492945242824253251231476
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Population by Race


White:46680.07%
Black:213.61%
Hispanic:*498.42%
Asian:183.09%
American Indian:50.86%
Hawaiian:10.17%
Other:223.78%
Total:582100%
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)
* NOTE: Hispanic or Latino is an ethnicity, not a race. This means individuals who identify as Hispanic will also be included in one of the race categories (such as White or Black). As a result, the totals shown here may exceed 100% when Hispanic is displayed alongside racial groups.

Gender Breakdown


GenderCount%Median Age
Males:31254.17%24.8 years
Females:26445.83%43.6 years
Total:576100%33.6 years
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Nativity & Citizenship


Native, born in the United States:21295.93%
Native, born in PR, Island Areas, or abroad:94.07%
Foreign born, naturalized U.S. citizen:00.00%
Foreign born, not a U.S. citizen:00.00%
Total Population:221100%
Total Native Population:221100.00%
Total Foreign-born Population:00.00%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS
Note: Nativity and Citizenship derived from American Community Survey (ACS) 5-year estimates. Total Population listed here will not match official ZIP Code population totals, which are based on the Decennial Census.

Income & Employment


In 2024, the Median household income is $0, which is well under the national median ($80,734), is down $69,155 (100.0%) since 2011 and below its 2019 pre-pandemic level by $48,319. Family households earn a median of $154,167 versus $0 for nonfamily households (a difference of $154,167). By gender, male median income is $0 and female is $0, which is considerably lower than the national female median ($55,274), with a current gap of $0 that has widened from 2011 to 2024. The labor-force participation rate is 72.8%, which is markedly above the national rate (63.5%). The unemployment rate is 0.0%, which is considerably lower than the national rate (5.2%). The largest occupation group is Management (100.0%).

Explore More:Income Over TimeHousehold IncomeEmployment StatusBy Occupation

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. Using data from Tables DP02, DP03, DP04 and DP05.

Median Income Over Time (Household, Family, Nonfamily, Male, Female)


Income Type20112012201320142015201620172018201920202021202220232024
Median Household Income$69,155$71,176$80,664$82,532$83,214$59,618$60,714$49,509$48,319$47,650$0$128,221$133,086$0
Median Family Income$69,155$71,176$80,664$82,756$83,679$64,028$57,188$58,000$0$0$118,021$143,646$133,984$154,167
Median NonFamily Income$0$0$0$0$0$41,071$0$49,063$47,974$44,954$50,313$55,192$0$0
Median Male Income$45,096$41,641$60,028$47,708$60,203$35,948$33,516$31,217$32,692$33,317$36,979$45,721$48,477$0
Median Female Income$50,034$26,542$26,326$27,156$27,644$28,486$28,918$32,000$50,806$50,819$53,650$0$60,568$0
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP03. SELECTED ECONOMIC CHARACTERISTICS

Average Household Income


Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Employment Status


Employed:5232.91%
Unemployed:00.00%
Not In Labor Force:10667.09%
Total:158100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Employment by Occupation (Civilian Employed Population, 16 and Over)


Management, business, science, and arts:52100.00%
Service:00.00%
Sales and Office:00.00%
Natural resources, construction, and maintenance:00.00%
Production, transportation, and material moving:00.00%
Total Civilian Employed Population:52100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS.

Housing & Affordability


In 2024, the median home value is $524,000, which is considerably higher than the national median ($332,700), is up $278,100 (113.09%) since 2011 and above its 2019 pre-pandemic level by $62,900. The median gross rent is $2,182, which is much higher than the national median ($1,413), and above its 2019 pre-pandemic level by $1,194. Of occupied housing, owners make up 49.47% (29.79% with a mortgage, 70.21% free-and-clear) and renters 50.53% - making this ZIP Code higher than national rental averages. The vacancy rate is 45.71%, which is considerably higher than the national rate (10.12%).

Explore More:Compare Home ValueHome Value Over TimeRent & Over TimeHousing Occupancy

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. Using data from Table DP03, SELECTED ECONOMIC CHARACTERISTICS.

Median Home Value (Comparison)


Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Median Home Value Over Time


Group20112102201320142015201620172018201920202021202220232024
Median Home Value$245,900$325,900$335,000$321,100$330,700$306,900$211,800$259,400$461,100$513,900$548,600$600,500$621,300$524,000
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Gross Rent Paid


Less than $500:00.00%
$500 to $999:00.00%
$1,000 to $1,499:1633.33%
$1,500 to $1,999:00.00%
$2,000 to $2,499:2245.83%
$2,500 to $2,999:00.00%
$3,000 or more:1020.83%
No Rent:00.00%
Total:48100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Median Gross Rent Over Time


Group20112102201320142015201620172018201920202021202220232024
Median Rent$0$0$0$1,240$1,190$1,204$1,063$900$988$979$929$0$2,211$2,182
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Housing Occupancy


Owner Occupied (with mortgage):1414.74%
Owner Occupied (free and clear, no mortgage):3334.74%
Renter Occupied:4850.53%
Total Occupied Housing Units:95100%

Occupied Housing Units:9554.29%
Vacant Housing Units (not graphed):8045.71%
Total Housing Units:175100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Housing Type (Single-Family, Multi-Family, Other)


Single-Family Units:10761.14%
Multi-Family Units:6838.86%
Other Units:00.00%
Total Housing Units:175100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Education, Health & Community


In 2024, 37.10% of adults (25+) have a bachelor's degree or higher, which is comparable to the national rate (35.70%). High school or higher is 90.40%, which is comparable to the national rate (89.60%). The uninsured rate is 0.00%, which is comparable to the national rate (8.40%). Private coverage is 100.00%, which is well above the national rate (67.10%). The share of people in poverty is 0.00%, which is comparable to the national rate (8.80%). Poverty has been broadly stable, which may reflect structural barriers or offsetting gains and setbacks. Among residents ages 3+, the largest enrollment group is college (100.00%). College enrollment is 100.00%, which is comparable to the national rate (26.70%), meaning the community mirrors broader higher-education participation.

Explore More:Educational AttainmentHealth InsurancePoverty Over TimeSchool Enrollment

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. Using data from Tables DP02 and DP03.

Educational Attainment of Adults (25 and Older)


Less than 9th grade:169.58%
9th to 12th grade, no diploma:00.00%
High school graduate (includes equivalency):3520.96%
Some college, no degree:3621.56%
Associate's degree:1810.78%
Bachelor's degree:4023.95%
Graduate or professional degree:2213.17%
Total:167100%
High school or higher:15190.42%
Bachelor's degree or higher:6237.13%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Health Insurance Coverage by Type (Private, Public, Uninsured)


Private Insurance:15858.96%
Public Insurance:11041.04%
No Insurance:00.00%
Total:268100%
Has Health Insurance:268100.00%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Percentage of People in Poverty Over Time (2011-2024)


Group20112102201320142015201620172018201920202021202220232024
% of People in Poverty0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP03. SELECTED ECONOMIC CHARACTERISTICS

Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.

School Enrollment by Education Level (Ages 3 and Older)


Nursery School, Preschool:00.00%
Kindergarten:00.00%
Elementary school (grades 1-8):00.00%
High school (grades 9-12):00.00%
College or graduate school:9100.00%
Total:9100%
Early Childhood:00.00%
K-12 (Primary & Secondary School):00.00%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Business & Employment Statistics


ZIP Code 98345 supports both business and residential activity. According to the Business Census (2024), there are 23 business establishments, employing about 313 people with an annual payroll of $23,715,000.

# Residential Mailboxes:0Source: USPS
# Business Mailboxes:0Source: USPS
Total Delivery Receptacles:456Source: USPS
Single Family Delivery Units:0Source: USPS
Multi Family Delivery Units:0Source: USPS
# of Businesses:23Source: CBP
1st Quarter Payroll:$6,163,000Source: CBP
Annual Payroll:$23,715,000Source: CBP
# of Employees:313Source: CBP

Geography, Land Area, & Statistical Classifications


ZIP Code 98345 is located in Kitsap County, Washington, within the Bremerton-Silverdale-Port Orchard, WA Metropolitan Statistical Area (CBSA 14740) and Washington's 6th Congressional District. This Metro area has a population of 251,133 people, about 0.23% of whom live in ZIP Code 98345. It covers 0.5 sq mi of land and a water area of 0.234 sq mi.

CBSA Name:Bremerton-Silverdale-Port Orchard, WASource: Census
CBSA Number:14740Source: Census
CBSA Type:MetroSource: Census
CBSA Division:--Source: Census
CBSA Population:251,133Source: Census
MSA:Seattle-Tacoma-Bremerton, WA CMSASource: Census
Land Area:0.5 sq miSource: Census
Water Area:0.234 sq miSource: Census
Congressional District:06Source: USPS
Congressional Land Area:6902.73 sq miSource: Census
PMSA:Bremerton, WA PMSASource: Census
Intro Date:< 2004-10Source: ZIP-Codes.com
Place FIPS Code:5335625Source: Census
Place Name:Keyport CDP; WashingtonSource: Census

Adjacent & Nearby ZIP Codes


98346 | | 98344

Schools in ZIP Code 98345


We could not locate which school district 98345 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.

Hilder Pearson Elementary 15650 Central Valley Rd Nw
Poulsbo, WA 98370
District: North Kitsap School DistrictNearby
Chief Kitsap Academy 15838 Sandy Hook Rd
Poulsbo, WA 98370
District: UnknownNearby
Poulsbo Elementary School 18531 Noll Rd Ne
Poulsbo, WA 98370
District: North Kitsap School DistrictNearby
Poulsbo Middle School 2003 Ne Hostmark St
Poulsbo, WA 98370
District: North Kitsap School DistrictNearby
North Kitsap High School 1780 Ne Hostmark St
Poulsbo, WA 98370
District: North Kitsap School DistrictNearby
West Sound Academy 16571 Creative Dr Ne
Poulsbo, WA 98370
District: Private SchoolNearby
Silverwood School 14000 Central Valley Rd Nw
Poulsbo, WA 98370
District: Private SchoolNearby
Gateway Christian Schools 18901 8th Ave Ne
Poulsbo, WA 98370
District: Private SchoolNearby

Colleges & Post Secondary Schools near ZIP Code 98345


Olympic College 1600 Chester Ave
Bremerton, WA 98337-1699
Type: Post Secondary
Seattle Film Institute 3210 16th Avenue W
Seattle, WA 98119-1707
Type: Post Secondary
Seattle Pacific University 3307 3rd Ave W
Seattle, WA 98119-1997
Type: Post Secondary
Shoreline Community College 16101 Greenwood Ave N
Shoreline, WA 98133-5696
Type: Post Secondary
North Seattle College 9600 College Way North
Seattle, WA 98103-3599
Type: Post Secondary
Divers Institute Of Technology 1341 N. Northlake Way, Suite 150
Seattle, WA 98103
Type: Post Secondary

Sources & References


Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.

  1. U.S. Postal Service [Last Updated: 2/1/2026], https://www.usps.com
  2. ZIP-Codes.com Proprietary Data Enhancements [Updated: 2/1/2026], https://www.zip-codes.com
  3. U.S. Census [Updated: Varies], https://www.census.gov
    • U.S. Census Office of Management and Budget [Updated: As Released]
    • U.S. Census 2020 Demographic & Housing Characteristics (DHC) [Decennial] [Updated: 5/25/2023]
    • U.S. Census 2011-2024 American Community Survey 5-year estimates (ACS) [Annually] [Updated: Annually, As Released]
    • U.S. Census Business Patterns (CBD) [Annually] [Updated: Annually, As Released]
    • U.S. Census American National Standards Institute (ANSI) [Updated: As Released]
  4. U.S. Geological Survey [Updated: Varies], https://www.usgs.gov
  5. Centers for Medicare & Medicaid Services [Updated: Annually, As Released], https://www.cms.gov
  6. National Center for Education Statistics [Updated: 2/1/2026], https://nces.ed.gov