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/651

ZIP codes starting with 651

ZIP codes
11
States
MO
Largest city
Jefferson City, MO
Population
69,938

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 651xx

ZIP codes starting with 651
ZIP City Type Population Median income Median home
65101 Jefferson City , MO Standard 28,793 $74,807 $243,600
65102 Jefferson City , MO No street area — — —
65103 Jefferson City , MO No street area — — —
65104 Jefferson City , MO No street area — — —
65105 Jefferson City , MO No street area — — —
65106 Jefferson City , MO No street area — — —
65107 Jefferson City , MO No street area — — —
65108 Jefferson City , MO No street area — — —
65109 Jefferson City , MO Standard 41,145 $74,694 $221,600
65110 Jefferson City , MO No street area — — —
65111 Jefferson City , MO No street area — — —

Cite this page

zipcodes.pro. “ZIP codes starting with 651.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/prefix/651

Underlying data is public domain or openly licensed — sources, vintages and licences.