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/LITTLEROCK

Littlerock ZIP code, Washington

The ZIP code for Littlerock, WA is 98556, and its area codes are 360 and 564.

USPS city name
1 ZIP code
Population
350
Area codes
360, 564

NANPA lists no telephone rate centre for Littlerock itself, so these are the area codes of the nearest one, Olympia (6.4 miles). A town on an area-code boundary can differ from its neighbour.

Littlerock in numbers

About 350 people live in Littlerock.

Population350Littlerock350

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the ZIP code addressed as Littlerock. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Littlerock

ZIP codes with the USPS city name Littlerock
ZIP City Type Population Median income Median home
98556 Littlerock , WA Standard 350 — —

Map of Littlerock ZIP codes

98556

The ZIP codes of Littlerock, 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 Littlerock

The nearest larger towns are Oakville (878 people, 5.4 mi), Rochester (5,834 people, 5.8 mi) and Grand Mound (3,287 people, 8.5 mi).

Towns near Littlerock
TownPopulationDistance
Rochester 5,834 5.8 mi
Grand Mound 3,287 8.5 mi
Tumwater 26,956 12.8 mi
Centralia 18,830 13.9 mi
Elma 3,483 15.2 mi
Olympia 55,951 15.8 mi
Chehalis 7,587 17.4 mi
Lacey 57,737 19.5 mi
Tanglewilde 6,314 20.4 mi
Montesano 4,183 22.8 mi
Shelton 10,612 23.5 mi
Yelm 11,102 23.8 mi
North Yelm 2,522 25.5 mi
Central Park 3,206 27.1 mi

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

Cite this page

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

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