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 — STATE/WA/COUNTY/WHITMAN

Whitman County, WA ZIP codes

There are 22 ZIP codes in Whitman County, WA, in 21 towns, from 99017 to 99333. The largest are 99163 (Pullman), 99111 (Colfax) and 99161 (Palouse).

The county seat is Colfax.

ZIP codes
22
Towns
21
County seat
Colfax
County FIPS
53075
Population
47,003
Median household income
$55,406
Land area
2,159 sq mi
Metro area
Pullman

Whitman County ZIP codes by town

Colfax (county seat)
99111

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

Map of Whitman County ZIP codes

99017990339910299104991119911399125991289913099136991439914999158991619916399164991709917199174991769917999333

The ZIP codes of Whitman County, 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.

Whitman County in numbers

About 47,003 people live in Whitman County, in 18,721 households, the 24th most populous of Washington's 39 counties. The median household income is $55,406 a year, 44% below the Washington median of $98,141 (US: $80,734). The median owner-occupied home is valued at $359,600 (36% below the Washington median), and median gross rent is $1,049 a month. The median age is 26.4; 49.8% of adults 25 and over hold a bachelor's degree or higher (39.6% across Washington); the average commute takes 17 minutes.

Population47,003Whitman47,003
Households18,721Whitman18,721
Median age26.4Whitman26.4Washington38.3US 38.9
Median household income$55,406Whitman$55,406Washington$98,141US $80,734
Median home value$359,600Whitman$359,600Washington$564,600US $332,700
Median gross rent$1,049Whitman$1,049Washington$1,760US $1,413
Bachelor's degree or higher49.8%Whitman49.8%Washington39.6%US 35.7%
Mean commute16.5 minWhitman16.5 minWashington26.6 minUS 26.4 min
Population density22 / sq miWhitman22 / sq mi

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

Largest towns in Whitman County

Largest towns in Whitman County
TownZIP codesPopulation
Pullman 2 32,229
Colfax 1 2,708
Palouse 1 1,147
Tekoa 1 690
St. John 1 607
Rosalia 1 513
Albion 1 495
Garfield 1 475
Endicott 1 425
Uniontown 1 400
Oakesdale 1 396
Lacrosse 1 357
Colton 1 323
Lamont 1 170
Thornton 1 163

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Whitman County.

Not sure you are in Whitman County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Whitman County, with figures

ZIP codes in Whitman County
ZIP City Type Population Median income Median home
99017 Lamont , WA Standard 230 $58,958 $121,400
99033 Tekoa , WA Standard 832 $58,750 $253,300
99102 Albion , WA Standard 495 $56,833 $230,700
99104 Belmont , WA No street area — — —
99111 Colfax , WA Standard 4,038 $73,393 $295,800
99113 Colton , WA Standard 560 $104,643 $398,000
99125 Endicott , WA Standard 611 $52,569 $195,800
99128 Farmington , WA Standard 259 $58,942 $363,500
99130 Garfield , WA Standard 693 $82,000 $232,100
99136 Hay , WA Standard 14 $87,708 —
99143 Lacrosse , WA Standard 585 $38,214 $123,600
99149 Malden , WA Standard 100 $26,250 $49,500
99158 Oakesdale , WA Standard 561 $78,375 $301,800
99161 Palouse , WA Standard 1,435 $87,464 $302,600
99163 Pullman , WA Standard 34,022 $48,231 $435,900
99164 Pullman , WA No street area — — —
99170 Rosalia , WA Standard 926 $58,750 $238,300
99171 Saint John , WA Standard 895 $53,333 $220,500
99174 Steptoe , WA Standard 69 $50,179 $254,500
99176 Thornton , WA Standard 163 $128,000 $283,300
99179 Uniontown , WA Standard 645 $79,063 $397,700
99333 Hooper , WA Standard 151 $98,315 $450,000

Cite this page

zipcodes.pro. “Whitman County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/wa/county/whitman

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