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/571

ZIP codes starting with 571

ZIP codes
15
States
SD
Largest city
Sioux Falls, SD
Population
208,064

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 571xx

ZIP codes starting with 571
ZIP City Type Population Median income Median home
57101 Sioux Falls , SD No street area — — —
57103 Sioux Falls , SD Standard 35,582 $72,831 $269,500
57104 Sioux Falls , SD Standard 26,963 $57,688 $202,800
57105 Sioux Falls , SD Standard 23,287 $77,292 $276,100
57106 Sioux Falls , SD Standard 51,907 $77,580 $290,200
57107 Sioux Falls , SD Standard 12,605 $74,141 $269,600
57108 Sioux Falls , SD Standard 33,966 $98,197 $413,600
57109 Sioux Falls , SD No street area — — —
57110 Sioux Falls , SD Standard 23,313 $88,955 $396,100
57117 Sioux Falls , SD Standard 53 — —
57118 Sioux Falls , SD No street area — — —
57186 Sioux Falls , SD No street area — — —
57193 Sioux Falls , SD No street area — — —
57197 Sioux Falls , SD Standard 388 — —
57198 Sioux Falls , SD No street area — — —

Cite this page

zipcodes.pro. “ZIP codes starting with 571.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/prefix/571

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