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/OR/COUNTY/MORROW

Morrow County, OR ZIP codes

Morrow County, OR has 5 ZIP codes, in 5 towns: 97818, 97844, 97836, 97843 and 97839.

The county seat is Heppner.

ZIP codes
5
Towns
5
County seat
Heppner
County FIPS
41049
State
Oregon
Population
12,300
Median household income
$75,448
Land area
2,031 sq mi

Morrow County ZIP codes by town

Heppner (county seat)
97836

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 Morrow County ZIP codes

9781897836978399784397844

The ZIP codes of Morrow 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.

Morrow County in numbers

About 12,300 people live in Morrow County, in 4,326 households, the 29th most populous of Oregon's 36 counties. The median household income is $75,448 a year, 9% below the Oregon median of $83,011 (US: $80,734). The median owner-occupied home is valued at $240,400 (50% below the Oregon median), and median gross rent is $995 a month. The median age is 36.3; 10.1% of adults 25 and over hold a bachelor's degree or higher (36.8% across Oregon); the average commute takes 23 minutes.

Population12,300Morrow12,300
Households4,326Morrow4,326
Median age36.3Morrow36.3Oregon40.4US 38.9
Median household income$75,448Morrow$75,448Oregon$83,011US $80,734
Median home value$240,400Morrow$240,400Oregon$477,600US $332,700
Median gross rent$995Morrow$995Oregon$1,525US $1,413
Bachelor's degree or higher10.1%Morrow10.1%Oregon36.8%US 35.7%
Mean commute23.4 minMorrow23.4 minOregon23.0 minUS 26.4 min
Population density6 / sq miMorrow6 / 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 Morrow County

Largest towns in Morrow County
TownZIP codesPopulation
Boardman 1 4,064
Irrigon 1 2,120
Heppner 1 1,277
Ione 1 456
Lexington 1 83

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 Morrow County.

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

Every ZIP code in Morrow County, with figures

ZIP codes in Morrow County
ZIP City Type Population Median income Median home
97818 Boardman , OR Standard 5,610 $61,523 $275,700
97836 Heppner , OR Standard 1,998 $88,591 $222,600
97839 Lexington , OR Standard 116 $40,568 $211,400
97843 Ione , OR Standard 805 $104,435 $221,500
97844 Irrigon , OR Standard 3,701 $76,090 $232,400

Cite this page

zipcodes.pro. “Morrow County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/or/county/morrow

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