Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/WA/KEY-CENTER

Key Center ZIP codes, Washington

No ZIP code is named for Key Center, WA; addresses there use a neighbouring town's name. 3 ZIP codes cover it: 98329, 98349 and 98394. Its area code is 253.

USPS city name
0 ZIP codes
Overlapping the city
3 more
Population
3,544
Area code
253

NANPA lists no telephone rate centre for Key Center itself, so these are the area codes of the nearest one, Gig Harbor (0.0 miles). A town on an area-code boundary can differ from its neighbour.

Key Center in numbers

About 3,544 people live in Key Center, in 1,441 households. The median household income is $105,781 a year, 8% above the Washington median of $98,141 (US: $80,734). The median owner-occupied home is valued at $613,200 (9% above the Washington median), and median gross rent is $1,705 a month. The median age is 45.9; 30.3% of adults 25 and over hold a bachelor's degree or higher (39.6% across Washington); the average commute takes 36 minutes.

Population3,544Key Center3,544
Households1,441Key Center1,441
Median age45.9Key Center45.9Washington38.3US 38.9
Median household income$105,781Key Center$105,781Washington$98,141US $80,734
Median home value$613,200Key Center$613,200Washington$564,600US $332,700
Median gross rent$1,705Key Center$1,705Washington$1,760US $1,413
Bachelor's degree or higher30.3%Key Center30.3%Washington39.6%US 35.7%
Mean commute36.1 minKey Center36.1 minWashington26.6 minUS 26.4 min
Population density242 / sq miKey Center242 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Key Center CDP. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes covering Key Center

These ZIP codes cover part of Key Center but are addressed as somewhere else.

ZIP codes overlapping Key Center
ZIP City Type Population Median income Median home
98329 Gig Harbor , WA Standard 11,552 $110,316 $518,700
98349 Lakebay , WA Standard 4,931 $75,875 $370,200
98394 Vaughn , WA Standard 892 — $572,400

Map of Key Center ZIP codes

983299834998394

The ZIP codes of Key Center, WA, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Key Center

The nearest larger towns are Artondale (14,073 people, 5.1 mi), Wauna (4,805 people, 5.4 mi) and Rosedale (4,208 people, 5.8 mi).

Towns near Key Center
TownPopulationDistance
Artondale 14,073 5.1 mi
Wauna 4,805 5.4 mi
Rosedale 4,208 5.8 mi
Fox Island 3,414 7.2 mi
Gig Harbor 12,424 7.2 mi
Longbranch 4,638 7.4 mi
Canterwood 2,971 7.8 mi
Wollochet 6,689 9.0 mi
Belfair 4,557 9.2 mi
Maplewood 5,803 9.4 mi
University Place 34,911 12.6 mi
Bethel 4,394 12.6 mi
Fircrest 7,069 13.2 mi
Steilacoom 6,686 13.5 mi

More nearby: every ZIP code in Pierce County · Washington ZIP codes

Cite this page

zipcodes.pro. “Key Center, WA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/wa/key-center

Underlying data is public domain or openly licensed — sources, vintages and licences.