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 — RANKINGS/OR/LARGEST-AREA

Largest ZIP Codes in Oregon by Land Area

What this measures. Land area of the Census tabulation area, in square miles. Water is excluded. Source: Census Gazetteer, data release 2026-10-12.

# ZIP City County Land area
1 97910 Jordan Valley Malheur 3,931.23 sq mi
2 97721 Princeton Harney 1,588.08 sq mi
3 97906 Harper Malheur 1,418.73 sq mi
4 97754 Prineville Crook 1,370.48 sq mi
5 97720 Burns Harney 1,167.39 sq mi
6 97842 Imnaha Wallowa 1,074.83 sq mi
7 97630 Lakeview Lake 1,047.88 sq mi
8 97836 Heppner Morrow 945.44 sq mi
9 97736 Frenchglen Harney 897.26 sq mi
10 97814 Baker City Baker 828.68 sq mi
11 97710 Fields Harney 788.14 sq mi
12 97828 Enterprise Wallowa 691.31 sq mi
13 97823 Condon Gilliam 676.65 sq mi
14 97641 Christmas Valley Lake 664.70 sq mi
15 97750 Mitchell Wheeler 626.19 sq mi
16 97758 Riley Harney 613.97 sq mi
17 97624 Chiloquin Klamath 611.06 sq mi
18 97918 Vale Malheur 584.80 sq mi
19 97601 Klamath Falls Klamath 577.69 sq mi
20 97904 Drewsey Harney 568.05 sq mi
21 97911 Juntura Malheur 559.19 sq mi
22 97759 Sisters Linn 545.70 sq mi
23 97856 Long Creek Grant 540.83 sq mi
24 97037 Maupin Wasco 524.87 sq mi
25 97908 Ironside Malheur 519.09 sq mi
26 97801 Pendleton Umatilla 496.19 sq mi
27 97722 Diamond Harney 480.27 sq mi
28 97413 Blue River Lane 473.75 sq mi
29 97530 Jacksonville Jackson 464.08 sq mi
30 97812 Arlington Gilliam 460.80 sq mi
31 97830 Fossil Wheeler 450.14 sq mi
32 97846 Joseph Wallowa 449.85 sq mi
33 97868 Pilot Rock Umatilla 424.72 sq mi
34 97913 Nyssa Malheur 392.08 sq mi
35 97638 Silver Lake Lake 390.67 sq mi
36 97620 Adel Lake 388.74 sq mi
37 97733 Crescent Klamath 378.46 sq mi
38 97843 Ione Morrow 372.34 sq mi
39 97907 Huntington Baker 368.20 sq mi
40 97761 Warm Springs Wasco 365.44 sq mi
41 97640 Summer Lake Lake 364.86 sq mi
42 97741 Madras Jefferson 363.88 sq mi
43 97820 Canyon City Grant 362.75 sq mi
44 97458 Myrtle Point Coos 360.93 sq mi
45 97524 Eagle Point Jackson 359.35 sq mi
46 97865 Mount Vernon Grant 357.79 sq mi
47 97623 Bonanza Klamath 356.50 sq mi
48 97603 Klamath Falls Klamath 340.63 sq mi
49 97826 Echo Umatilla 335.28 sq mi
50 97520 Ashland Jackson 328.83 sq mi

Showing the top 50 of 428 ZIP codes in Oregon that have this figure and meet the threshold above. 97910 ranks 1st at 3,931.23 sq mi, against 328.83 sq mi in 50th place.

Other rankings for Oregon

Cite this page

zipcodes.pro. “Largest ZIP Codes in Oregon by Land Area.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/rankings/or/largest-area

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