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/AZ/MOST-TAX-RETURNS

ZIP Codes With the Most Tax Returns Filed in Arizona

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 85142 Queen Creek Pinal 40,430
2 85383 Peoria Maricopa 34,240
3 85225 Chandler Maricopa 34,100
4 85326 Buckeye Maricopa 33,430
5 85338 Goodyear Maricopa 31,960
6 85308 Glendale Maricopa 31,510
7 85032 Phoenix Maricopa 31,160
8 85364 Yuma Yuma 30,840
9 85041 Phoenix Maricopa 28,320
10 85345 Peoria Maricopa 28,290
11 85710 Tucson Pima 27,000
12 85204 Mesa Maricopa 26,960
13 85122 Casa Grande Pinal 26,640
14 85212 Mesa Maricopa 25,130
15 85295 Gilbert Maricopa 25,080
16 85282 Tempe Maricopa 25,000
17 85138 Maricopa Pinal 24,860
18 85008 Phoenix Maricopa 24,720
19 85301 Glendale Maricopa 24,200
20 85339 Laveen Maricopa 23,900
21 85207 Mesa Maricopa 23,660
22 85022 Phoenix Maricopa 23,640
23 85037 Phoenix Maricopa 23,420
24 85224 Chandler Maricopa 23,350
25 85296 Gilbert Maricopa 23,340
26 85255 Scottsdale Maricopa 23,230
27 85033 Phoenix Maricopa 23,170
28 85706 Tucson Pima 23,160
29 85254 Scottsdale Maricopa 22,990
30 85286 Chandler Maricopa 22,990
31 85365 Yuma Yuma 22,830
32 85234 Gilbert Maricopa 22,490
33 85705 Tucson Pima 22,330
34 85379 Surprise Maricopa 22,280
35 85249 Chandler Maricopa 21,930
36 85283 Tempe Maricopa 21,810
37 85201 Mesa Maricopa 21,410
38 85042 Phoenix Maricopa 21,270
39 85140 San Tan Valley Pinal 21,170
40 85323 Avondale Maricopa 21,110
41 85382 Peoria Maricopa 21,060
42 85251 Scottsdale Maricopa 20,570
43 85209 Mesa Maricopa 20,520
44 85035 Phoenix Maricopa 20,480
45 85029 Phoenix Maricopa 20,300
46 85226 Chandler Maricopa 20,180
47 85044 Phoenix Maricopa 20,140
48 85205 Mesa Maricopa 20,090
49 85353 Tolleson Maricopa 20,040
50 85374 Surprise Maricopa 19,910

Showing the top 50 of 293 ZIP codes in Arizona that have this figure . 85142 ranks 1st at 40,430, against 19,910 in 50th place.

Other rankings for Arizona

Cite this page

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

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