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/MAPLE-VALLEY

Maple Valley ZIP code, Washington

The ZIP code for Maple Valley, WA is 98038, and its area code is 425.

USPS city name
1 ZIP code
Overlapping the city
2 more
Population
28,287
Area code
425

Mail addressed to Maple Valley uses the ZIP code above. 2 more ZIP codes cover part of the city but are addressed as somewhere else; they are listed separately below.

Maple Valley in numbers

About 28,287 people live in Maple Valley, in 9,394 households, the 46th-largest of Washington's 628 census places. The median household income is $152,885 a year, 56% above the Washington median of $98,141 (US: $80,734). The median owner-occupied home is valued at $724,700 (28% above the Washington median), and median gross rent is $2,304 a month. The median age is 36.7; 50.2% of adults 25 and over hold a bachelor's degree or higher (39.6% across Washington); the average commute takes 37 minutes.

Population28,287Maple Valley28,287
Households9,394Maple Valley9,394
Median age36.7Maple Valley36.7Washington38.3US 38.9
Median household income$152,885Maple Valley$152,885Washington$98,141US $80,734
Median home value$724,700Maple Valley$724,700Washington$564,600US $332,700
Median gross rent$2,304Maple Valley$2,304Washington$1,760US $1,413
Bachelor's degree or higher50.2%Maple Valley50.2%Washington39.6%US 35.7%
Mean commute37.0 minMaple Valley37.0 minWashington26.6 minUS 26.4 min
Population density4,711 / sq miMaple Valley4,711 / sq mi

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

ZIP codes addressed as Maple Valley

ZIP codes with the USPS city name Maple Valley
ZIP City Type Population Median income Median home
98038 Maple Valley , WA Standard 37,324 $152,261 $776,900

Other ZIP codes overlapping Maple Valley

These ZIP codes cover part of Maple Valley but are addressed as somewhere else.

ZIP codes overlapping Maple Valley
ZIP City Type Population Median income Median home
98010 Black Diamond , WA Standard 6,857 $142,048 $775,400
98042 Kent , WA Standard 50,216 $127,552 $658,500

Map of Maple Valley ZIP codes

The ZIP codes of Maple Valley, 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 Maple Valley

The nearest larger towns are Kent (135,603 people, 8.4 mi), Auburn (85,676 people, 9.3 mi) and Renton (105,317 people, 11 mi).

Towns near Maple Valley
TownPopulationDistance
Covington 21,233 3.3 mi
Hobart 6,552 3.4 mi
Black Diamond 5,961 3.7 mi
Lake Morton-Berrydale 11,183 4.0 mi
Maple Heights-Lake Desire 4,113 5.5 mi
Lake Holm 3,555 6.1 mi
Mirrormont 4,019 6.8 mi
Fairwood 17,856 7.5 mi
East Renton Highlands 12,582 7.8 mi
Kent 135,603 8.4 mi
Auburn 85,676 9.3 mi
Renton 105,317 10.8 mi
Lake Tapps 12,798 11.4 mi
Enumclaw 12,798 11.6 mi

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

Cite this page

zipcodes.pro. “Maple Valley, WA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/wa/maple-valley

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