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/857

ZIP codes starting with 857

ZIP codes
55
States
AZ
Largest city
Tucson, AZ
Population
924,030

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 857xx

ZIP codes starting with 857
ZIP City Type Population Median income Median home
85701 Tucson , AZ Standard 5,498 $51,794 $492,100
85702 Tucson , AZ No street area — — —
85703 Tucson , AZ No street area — — —
85704 Tucson , AZ Standard 35,210 $81,696 $423,900
85705 Tucson , AZ Standard 54,700 $37,194 $122,700
85706 Tucson , AZ Standard 54,236 $50,248 $193,200
85707 Tucson , AZ Standard 581 — —
85708 Tucson , AZ Standard 4,312 $63,919 —
85709 Tucson , AZ Standard 0 — —
85710 Tucson , AZ Standard 56,125 $57,175 $271,900
85711 Tucson , AZ Standard 42,558 $56,121 $280,300
85712 Tucson , AZ Standard 31,571 $50,625 $268,600
85713 Tucson , AZ Standard 46,439 $53,152 $193,300
85714 Tucson , AZ Standard 14,498 $55,000 $203,600
85715 Tucson , AZ Standard 19,198 $85,069 $370,000
85716 Tucson , AZ Standard 32,976 $49,061 $324,000
85717 Tucson , AZ No street area — — —
85718 Tucson , AZ Standard 28,125 $114,892 $712,400
85719 Tucson , AZ Standard 51,833 $42,241 $304,300
85720 Tucson , AZ No street area — — —
85721 Tucson , AZ Standard 0 — —
85722 Tucson , AZ No street area — — —
85723 Tucson , AZ Standard 244 — —
85724 Tucson , AZ Standard 0 — —
85725 Tucson , AZ No street area — — —
85726 Tucson , AZ Standard 0 — —
85728 Tucson , AZ No street area — — —
85730 Tucson , AZ Standard 39,399 $62,090 $246,100
85731 Tucson , AZ No street area — — —
85732 Tucson , AZ No street area — — —
85733 Tucson , AZ No street area — — —
85734 Tucson , AZ Standard 4,797 — —
85735 Tucson , AZ Standard 10,718 $74,158 $212,000
85736 Tucson , AZ Standard 4,219 $51,250 $182,100
85737 Tucson , AZ Standard 22,785 $107,348 $469,500
85738 Catalina , AZ No street area — — —
85739 Tucson , AZ Standard 18,478 $81,711 $416,700
85740 Tucson , AZ No street area — — —
85741 Tucson , AZ Standard 33,679 $76,271 $299,500
85742 Tucson , AZ Standard 31,613 $98,844 $368,300
85743 Tucson , AZ Standard 31,300 $90,093 $356,300
85744 Tucson , AZ No street area — — —
85745 Tucson , AZ Standard 36,999 $71,348 $342,700
85746 Tucson , AZ Standard 42,835 $68,903 $241,300
85747 Tucson , AZ Standard 27,753 $110,816 $370,300
85748 Tucson , AZ Standard 20,103 $95,750 $368,700
85749 Tucson , AZ Standard 18,843 $109,219 $590,400
85750 Tucson , AZ Standard 24,886 $102,836 $585,300
85751 Tucson , AZ No street area — — —
85752 Tucson , AZ No street area — — —
85754 Tucson , AZ No street area — — —
85755 Tucson , AZ Standard 18,560 $113,831 $486,900
85756 Tucson , AZ Standard 37,700 $72,490 $233,500
85757 Tucson , AZ Standard 21,259 $83,219 $308,400
85775 Tucson , AZ No street area — — —

Cite this page

zipcodes.pro. “ZIP codes starting with 857.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/prefix/857

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