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/274

ZIP codes starting with 274

ZIP codes
28
States
NC
Largest city
Greensboro, NC
Population
333,909

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 274xx

ZIP codes starting with 274
ZIP City Type Population Median income Median home
27401 Greensboro , NC Standard 21,920 $47,972 $156,500
27402 Greensboro , NC No street area — — —
27403 Greensboro , NC Standard 22,557 $57,917 $249,200
27404 Greensboro , NC No street area — — —
27405 Greensboro , NC Standard 54,303 $47,431 $174,900
27406 Greensboro , NC Standard 60,651 $59,563 $204,400
27407 Greensboro , NC Standard 51,697 $59,427 $223,900
27408 Greensboro , NC Standard 16,519 $83,862 $374,700
27409 Greensboro , NC Standard 17,551 $60,281 $225,000
27410 Greensboro , NC Standard 54,921 $85,291 $338,600
27411 Greensboro , NC Standard 1,433 — —
27412 Greensboro , NC Standard 3,055 — —
27413 Greensboro , NC No street area — — —
27415 Greensboro , NC No street area — — —
27416 Greensboro , NC No street area — — —
27417 Greensboro , NC No street area — — —
27419 Greensboro , NC No street area — — —
27420 Greensboro , NC No street area — — —
27425 Greensboro , NC No street area — — —
27427 Greensboro , NC No street area — — —
27429 Greensboro , NC No street area — — —
27435 Greensboro , NC No street area — — —
27438 Greensboro , NC No street area — — —
27455 Greensboro , NC Standard 29,302 $94,349 $341,500
27495 Greensboro , NC No street area — — —
27497 Greensboro , NC No street area — — —
27498 Greensboro , NC No street area — — —
27499 Greensboro , NC No street area — — —

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zipcodes.pro. “ZIP codes starting with 274.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/prefix/274

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