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/OR/SEASIDE

Seaside ZIP code, Oregon

The ZIP code for Seaside, OR is 97138, and its area codes are 503 and 971.

USPS city name
1 ZIP code
Population
7,192
Area codes
503, 971
State
Oregon

Seaside in numbers

About 7,192 people live in Seaside, in 3,638 households. The median household income is $47,361 a year, 43% below the Oregon median of $83,011 (US: $80,734). The median owner-occupied home is valued at $459,500 (4% below the Oregon median), and median gross rent is $1,083 a month. The median age is 51.2; 31.3% of adults 25 and over hold a bachelor's degree or higher (36.8% across Oregon); the average commute takes 18 minutes.

Population7,192Seaside7,192
Households3,638Seaside3,638
Median age51.2Seaside51.2Oregon40.4US 38.9
Median household income$47,361Seaside$47,361Oregon$83,011US $80,734
Median home value$459,500Seaside$459,500Oregon$477,600US $332,700
Median gross rent$1,083Seaside$1,083Oregon$1,525US $1,413
Bachelor's degree or higher31.3%Seaside31.3%Oregon36.8%US 35.7%
Mean commute18.1 minSeaside18.1 minOregon23.0 minUS 26.4 min
Population density1,776 / sq miSeaside1,776 / sq mi

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

ZIP codes addressed as Seaside

ZIP codes with the USPS city name Seaside
ZIP City Type Population Median income Median home
97138 Seaside , OR Standard 11,035 $60,411 $483,800

Map of Seaside ZIP codes

97138

The ZIP codes of Seaside, OR, 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 Seaside

The nearest larger towns are Astoria (10,109 people, 15 mi), Longview, WA (38,069 people, 47 mi) and Kelso, WA (12,684 people, 50 mi).

Towns near Seaside
TownPopulationDistance
Warrenton 6,327 12.7 mi
Astoria 10,109 14.6 mi

More nearby: every ZIP code in Clatsop County · Oregon ZIP codes

Cite this page

zipcodes.pro. “Seaside, OR ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/or/seaside

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