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/MOST-TAX-RETURNS

ZIP Codes With the Most Tax Returns Filed in Oregon

What this measures. Number of individual income tax returns filed. A rough proxy for how many households a ZIP code contains, available where census figures are not. Source: IRS Statistics of Income, ZIP code data, data release 2026-10-12.

# ZIP City County Returns filed
1 97229 Portland Washington 33,890
2 97045 Oregon City Clackamas 27,380
3 97702 Bend Deschutes 26,470
4 97206 Portland Multnomah 26,210
5 97124 Hillsboro Washington 25,620
6 97402 Eugene Lane 25,120
7 97223 Portland Washington 25,060
8 97123 Hillsboro Washington 24,290
9 97007 Beaverton Washington 24,260
10 97504 Medford Jackson 23,760
11 97301 Salem Marion 22,790
12 97405 Eugene Lane 22,670
13 97756 Redmond Deschutes 22,290
14 97006 Beaverton Washington 22,230
15 97202 Portland Multnomah 22,020
16 97701 Bend Deschutes 21,630
17 97501 Medford Jackson 21,360
18 97080 Gresham Multnomah 21,150
19 97401 Eugene Lane 20,520
20 97219 Portland Multnomah 20,270
21 97217 Portland Multnomah 19,920
22 97302 Salem Marion 19,780
23 97330 Corvallis Benton 19,680
24 97305 Salem Marion 19,560
25 97303 Salem Marion 19,170
26 97230 Portland Multnomah 18,720
27 97224 Portland Washington 18,630
28 97030 Gresham Multnomah 18,100
29 97222 Portland Clackamas 18,100
30 97128 Mcminnville Yamhill 17,960
31 97478 Springfield Lane 17,530
32 97477 Springfield Lane 17,460
33 97322 Albany Linn 17,270
34 97211 Portland Multnomah 17,170
35 97233 Portland Multnomah 17,090
36 97404 Eugene Lane 16,930
37 97236 Portland Multnomah 16,730
38 97214 Portland Multnomah 16,230
39 97213 Portland Multnomah 16,120
40 97306 Salem Marion 16,070
41 97086 Happy Valley Clackamas 16,060
42 97304 Salem Polk 15,820
43 97527 Grants Pass Josephine 15,660
44 97266 Portland Multnomah 15,590
45 97526 Grants Pass Josephine 15,580
46 97267 Portland Clackamas 15,540
47 97321 Albany Linn 14,890
48 97203 Portland Multnomah 14,860
49 97008 Beaverton Washington 14,820
50 97355 Lebanon Linn 14,460

Showing the top 50 of 348 ZIP codes in Oregon that have this figure . 97229 ranks 1st at 33,890, against 14,460 in 50th place.

Other rankings for Oregon

Cite this page

zipcodes.pro. “ZIP Codes With the Most Tax Returns Filed in Oregon.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/rankings/or/most-tax-returns

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