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 — PREFIX/856

ZIP codes starting with 856

ZIP codes
53
States
AZ
Largest city
Vail, AZ
Population
331,784

The first three digits of a ZIP code identify a sectional center facility — the postal processing plant that sorts mail for the area. It is a mail-routing grouping, not an administrative boundary.

Every ZIP code in 856xx

ZIP codes starting with 856
ZIP City Type Population Median income Median home
85601 Arivaca , AZ Standard 268 $30,542 $71,600
85602 Benson , AZ Standard 10,019 $53,008 $203,200
85603 Bisbee , AZ Standard 6,699 $47,680 $207,600
85605 Bowie , AZ Standard 683 $48,558 $61,300
85606 Cochise , AZ Standard 1,066 $59,306 $261,800
85607 Douglas , AZ Standard 17,191 $43,351 $153,800
85608 Douglas , AZ Standard 2,804 — —
85609 Dragoon , AZ Standard 426 $78,779 —
85610 Elfrida , AZ Standard 576 $34,375 $225,000
85611 Elgin , AZ Standard 1,454 $91,458 $380,300
85613 Fort Huachuca , AZ Standard 4,983 $89,609 —
85614 Green Valley , AZ Standard 25,381 $64,879 $301,200
85615 Hereford , AZ Standard 10,175 $73,758 $250,200
85616 Huachuca City , AZ Standard 4,941 $51,813 $175,300
85617 Mc Neal , AZ Standard 1,094 $43,967 $123,000
85618 Mammoth , AZ Standard 1,550 $51,953 $102,500
85619 Mount Lemmon , AZ Standard 0 — —
85620 Naco , AZ Standard 988 $57,738 $72,900
85621 Nogales , AZ Standard 21,593 $43,464 $193,200
85622 Green Valley , AZ Standard 6,518 $76,959 $371,100
85623 Oracle , AZ Standard 5,558 $68,541 $428,200
85624 Patagonia , AZ Standard 1,546 $56,053 $397,500
85625 Pearce , AZ Standard 1,917 $47,500 $171,200
85626 Pirtleville , AZ Standard 1,332 $49,519 $93,800
85627 Pomerene , AZ Standard 430 $72,917 $175,000
85628 Nogales , AZ No street area — — —
85629 Sahuarita , AZ Standard 31,668 $109,253 $335,600
85630 Saint David , AZ Standard 1,939 $52,146 $149,300
85631 San Manuel , AZ Standard 3,508 $48,389 $120,400
85632 San Simon , AZ Standard 861 $52,917 $168,100
85633 Sasabe , AZ Standard 48 $21,000 —
85634 Sells , AZ Standard 5,038 $36,389 $82,600
85635 Sierra Vista , AZ Standard 34,193 $61,580 $228,000
85636 Sierra Vista , AZ No street area — — —
85637 Sonoita , AZ Standard 1,105 $99,688 $467,100
85638 Tombstone , AZ Standard 1,418 $37,604 $184,000
85639 Topawa , AZ Standard 166 $39,333 —
85640 Tumacacori , AZ Standard 207 $55,417 —
85641 Vail , AZ Standard 34,752 $131,164 $415,100
85643 Willcox , AZ Standard 8,476 $57,903 $173,900
85644 Willcox , AZ No street area — — —
85645 Amado , AZ Standard 1,249 $60,714 $206,800
85646 Tubac , AZ Standard 1,345 $73,438 $491,300
85648 Rio Rico , AZ Standard 22,118 $61,519 $224,900
85650 Sierra Vista , AZ Standard 14,876 $91,654 $327,000
85652 Cortaro , AZ No street area — — —
85653 Marana , AZ Standard 23,574 $86,154 $333,800
85654 Rillito , AZ Standard 0 — —
85655 Douglas , AZ No street area — — —
85658 Marana , AZ Standard 16,051 $123,415 $478,400
85662 Nogales , AZ No street area — — —
85670 Fort Huachuca , AZ No street area — — —
85671 Sierra Vista , AZ No street area — — —

Cite this page

zipcodes.pro. “ZIP codes starting with 856.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/prefix/856

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