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/FINLEY

Finley ZIP codes, Washington

No ZIP code is named for Finley, WA; addresses there use a neighbouring town's name. The ZIP code covering it is 99337. Its area code is 509.

USPS city name
0 ZIP codes
Overlapping the city
1 more
Population
5,634
Area code
509

NANPA lists no telephone rate centre for Finley itself, so these are the area codes of the nearest one, Kennewick (0.0 miles). A town on an area-code boundary can differ from its neighbour.

Finley in numbers

About 5,634 people live in Finley, in 1,910 households. The median household income is $92,231 a year, 6% below the Washington median of $98,141 (US: $80,734). The median owner-occupied home is valued at $382,500 (32% below the Washington median), and median gross rent is $1,099 a month. The median age is 44.9; 20.9% of adults 25 and over hold a bachelor's degree or higher (39.6% across Washington); the average commute takes 28 minutes.

Population5,634Finley5,634
Households1,910Finley1,910
Median age44.9Finley44.9Washington38.3US 38.9
Median household income$92,231Finley$92,231Washington$98,141US $80,734
Median home value$382,500Finley$382,500Washington$564,600US $332,700
Median gross rent$1,099Finley$1,099Washington$1,760US $1,413
Bachelor's degree or higher20.9%Finley20.9%Washington39.6%US 35.7%
Mean commute27.8 minFinley27.8 minWashington26.6 minUS 26.4 min
Population density487 / sq miFinley487 / sq mi

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

ZIP codes covering Finley

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

ZIP codes overlapping Finley
ZIP City Type Population Median income Median home
99337 Kennewick , WA Standard 33,287 $98,848 $395,500

Map of Finley ZIP codes

99337

The ZIP codes of Finley, 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 Finley

The nearest larger towns are Kennewick (85,295 people, 6.6 mi), Pasco (79,575 people, 7.6 mi) and Richland (62,753 people, 14 mi).

Towns near Finley
TownPopulationDistance
Burbank 3,589 3.6 mi
Kennewick 85,295 6.6 mi
Pasco 79,575 7.6 mi
Richland 62,753 14.4 mi
West Richland 17,586 19.2 mi
Benton City 3,695 21.8 mi
Umatilla, OR 7,508 22.2 mi
Hermiston, OR 19,546 26.0 mi

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

Cite this page

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

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