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/CA/LOWEST-AVERAGE-INCOME

ZIP Codes With the Lowest Average Income in California

What this measures. Total adjusted gross income divided by tax returns filed, lowest first. ZIP codes with fewer than 200 returns are excluded: the IRS suppresses small cells and the remainder swing too wildly to rank. Source: IRS Statistics of Income, ZIP code data, data release 2026-10-12.

# ZIP City County Average AGI per return
1 93701 Fresno Fresno $31,122
2 92254 Mecca Riverside $31,606
3 93640 Mendota Fresno $32,898
4 92401 San Bernardino San Bernardino $32,944
5 93219 Earlimart Tulare $33,153
6 93702 Fresno Fresno $34,378
7 93615 Cutler Tulare $35,040
8 93241 Lamont Kern $35,390
9 90003 Los Angeles Los Angeles $36,011
10 90011 Los Angeles Los Angeles $36,528
11 95202 Stockton San Joaquin $36,583
12 92274 Thermal Riverside $36,807
13 93647 Orosi Tulare $36,895
14 90037 Los Angeles Los Angeles $37,448
15 93239 Kettleman City Kings $37,518
16 91980 Tecate San Diego $37,812
17 93203 Arvin Kern $37,981
18 93660 San Joaquin Fresno $37,991
19 93223 Farmersville Tulare $38,138
20 90002 Los Angeles Los Angeles $38,142
21 93646 Orange Cove Tulare $38,355
22 93703 Fresno Fresno $38,383
23 92410 San Bernardino San Bernardino $38,546
24 93250 Mc Farland Kern $38,577
25 90001 Los Angeles Los Angeles $38,588
26 93256 Pixley Tulare $38,906
27 92411 San Bernardino San Bernardino $39,011
28 92283 Winterhaven Imperial $39,057
29 90044 Los Angeles Los Angeles $39,059
30 93204 Avenal Kings $39,161
31 93648 Parlier Fresno $39,187
32 93608 Cantua Creek Fresno $39,276
33 93652 Raisin City Fresno $39,463
34 93249 Lost Hills Kern $39,591
35 93235 Ivanhoe Tulare $39,766
36 93305 Bakersfield Kern $39,829
37 90059 Los Angeles Los Angeles $39,838
38 90057 Los Angeles Los Angeles $39,902
39 93304 Bakersfield Kern $40,100
40 92242 Earp San Bernardino $40,152
41 92257 Niland Imperial $40,355
42 93307 Bakersfield Kern $40,359
43 95560 Redway Humboldt $40,677
44 93205 Bodfish Kern $40,686
45 93706 Fresno Fresno $40,868
46 92231 Calexico Imperial $41,029
47 90007 Los Angeles Los Angeles $41,277
48 92173 San Ysidro San Diego $41,379
49 95548 Klamath Del Norte $41,538
50 91934 Jacumba San Diego $41,559

Showing the top 50 of 1,429 ZIP codes in California that have this figure and meet the threshold above. 93701 ranks 1st at $31,122, against $41,559 in 50th place.

Other rankings for California

Cite this page

zipcodes.pro. “ZIP Codes With the Lowest Average Income in California.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/rankings/ca/lowest-average-income

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