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/309

ZIP codes starting with 309

ZIP codes
13
States
GA
Largest city
Augusta, GA
Population
200,816

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 309xx

ZIP codes starting with 309
ZIP City Type Population Median income Median home
30901 Augusta , GA Standard 16,484 $25,163 $104,000
30903 Augusta , GA No street area — — —
30904 Augusta , GA Standard 23,400 $46,696 $199,200
30905 Augusta , GA Standard 7,033 $74,688 —
30906 Augusta , GA Standard 60,423 $45,999 $124,700
30907 Augusta , GA Standard 46,975 $81,912 $242,100
30909 Augusta , GA Standard 46,501 $71,364 $242,400
30912 Augusta , GA Standard 0 — —
30914 Augusta , GA No street area — — —
30916 Augusta , GA No street area — — —
30917 Augusta , GA No street area — — —
30919 Augusta , GA No street area — — —
30999 Augusta , GA No street area — — —

Cite this page

zipcodes.pro. “ZIP codes starting with 309.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/prefix/309

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