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/WINTHROP

Winthrop ZIP code, Washington

The ZIP code for Winthrop, WA is 98862, and its area code is 509.

USPS city name
1 ZIP code
Population
423
Area code
509

NANPA lists no telephone rate centre for Winthrop itself, so these are the area codes of the nearest one, Twisp (17.8 miles). A town on an area-code boundary can differ from its neighbour.

Winthrop in numbers

About 423 people live in Winthrop, in 185 households. The median household income is $66,908 a year, 32% below the Washington median of $98,141 (US: $80,734). The median owner-occupied home is valued at $475,000 (16% below the Washington median), and median gross rent is $1,128 a month. The median age is 35.1; 35.5% of adults 25 and over hold a bachelor's degree or higher (39.6% across Washington); the average commute takes 12 minutes.

Population423Winthrop423
Households185Winthrop185
Median age35.1Winthrop35.1Washington38.3US 38.9
Median household income$66,908Winthrop$66,908Washington$98,141US $80,734
Median home value$475,000Winthrop$475,000Washington$564,600US $332,700
Median gross rent$1,128Winthrop$1,128Washington$1,760US $1,413
Bachelor's degree or higher35.5%Winthrop35.5%Washington39.6%US 35.7%
Mean commute12.0 minWinthrop12.0 minWashington26.6 minUS 26.4 min
Population density439 / sq miWinthrop439 / sq mi

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

ZIP codes addressed as Winthrop

ZIP codes with the USPS city name Winthrop
ZIP City Type Population Median income Median home
98862 Winthrop , WA Standard 2,995 $71,080 $720,200

Map of Winthrop ZIP codes

98862

The ZIP codes of Winthrop, 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 Winthrop

The nearest larger towns are Twisp (1,179 people, 8.2 mi), Malott (447 people, 25 mi) and Okanogan (2,470 people, 28 mi).

Towns near Winthrop
TownPopulationDistance
Omak 5,036 29.9 mi

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

Cite this page

zipcodes.pro. “Winthrop, WA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/wa/winthrop

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