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/214

ZIP codes starting with 214

ZIP codes
8
States
MD
Largest city
Annapolis, MD
Population
96,397

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 214xx

ZIP codes starting with 214
ZIP City Type Population Median income Median home
21401 Annapolis , MD Standard 38,629 $123,381 $601,400
21402 Annapolis , MD Standard 4,303 $80,893 —
21403 Annapolis , MD Standard 32,681 $123,329 $582,500
21404 Annapolis , MD No street area — — —
21405 Annapolis , MD Standard 495 $160,703 $986,100
21409 Annapolis , MD Standard 20,289 $147,151 $535,500
21411 Annapolis , MD No street area — — —
21412 Annapolis , MD No street area — — —

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zipcodes.pro. “ZIP codes starting with 214.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/prefix/214

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