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/GARFIELD

Garfield County, WA ZIP codes

Garfield County, WA has one ZIP code: 99347.

The county seat is Pomeroy.

ZIP codes
1
Towns
1
County seat
Pomeroy
County FIPS
53023
Population
2,353
Median household income
$64,884
Land area
711 sq mi

Garfield County ZIP codes by town

Pomeroy (county seat)
99347

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 Garfield County ZIP codes

99347

The ZIP codes of Garfield 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.

Garfield County in numbers

About 2,353 people live in Garfield County, in 1,031 households, the 39th most populous of Washington's 39 counties. The median household income is $64,884 a year, 34% below the Washington median of $98,141 (US: $80,734). The median owner-occupied home is valued at $239,200 (58% below the Washington median), and median gross rent is $791 a month. The median age is 47.8; 31.8% of adults 25 and over hold a bachelor's degree or higher (39.6% across Washington); the average commute takes 26 minutes.

Population2,353Garfield2,353
Households1,031Garfield1,031
Median age47.8Garfield47.8Washington38.3US 38.9
Median household income$64,884Garfield$64,884Washington$98,141US $80,734
Median home value$239,200Garfield$239,200Washington$564,600US $332,700
Median gross rent$791Garfield$791Washington$1,760US $1,413
Bachelor's degree or higher31.8%Garfield31.8%Washington39.6%US 35.7%
Mean commute26.4 minGarfield26.4 minWashington26.6 minUS 26.4 min
Population density3 / sq miGarfield3 / 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.

Neighbouring counties

Counties that share a ZIP code with Garfield County.

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

Every ZIP code in Garfield County, with figures

ZIP codes in Garfield County
ZIP City Type Population Median income Median home
99347 Pomeroy , WA Standard 2,512 $64,699 $243,400

Cite this page

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

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