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/677

ZIP codes starting with 677

ZIP codes
28
States
KS
Largest city
Colby, KS
Population
30,326

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 677xx

ZIP codes starting with 677
ZIP City Type Population Median income Median home
67701 Colby , KS Standard 6,134 $70,250 $177,300
67730 Atwood , KS Standard 1,654 $66,250 $120,100
67731 Bird City , KS Standard 942 $56,333 $117,400
67732 Brewster , KS Standard 691 $64,938 $144,400
67733 Edson , KS Standard 81 $95,938 —
67734 Gem , KS Standard 175 — —
67735 Goodland , KS Standard 5,424 $61,042 $136,400
67736 Gove , KS Standard 183 $55,972 $98,800
67737 Grainfield , KS Standard 451 $52,917 $175,000
67738 Grinnell , KS Standard 574 $71,625 $132,100
67739 Herndon , KS Standard 280 $60,714 $51,000
67740 Hoxie , KS Standard 1,592 $75,417 $186,600
67741 Kanorado , KS Standard 258 $44,958 $116,300
67743 Levant , KS Standard 200 $56,910 —
67744 Ludell , KS Standard 155 $91,806 $98,000
67745 Mc Donald , KS Standard 353 $87,083 —
67747 Monument , KS Standard 151 $74,583 $157,500
67748 Oakley , KS Standard 2,637 $78,083 $137,100
67749 Oberlin , KS Standard 2,209 $54,000 $90,100
67751 Park , KS Standard 207 $61,806 $119,000
67752 Quinter , KS Standard 1,544 $74,861 $133,100
67753 Rexford , KS Standard 407 $62,396 $122,800
67756 Saint Francis , KS Standard 1,677 $54,868 $129,600
67757 Selden , KS Standard 466 $57,750 $83,300
67758 Sharon Springs , KS Standard 1,009 $58,500 $109,700
67761 Wallace , KS Standard 176 $74,091 $74,300
67762 Weskan , KS Standard 295 $74,844 $166,700
67764 Winona , KS Standard 401 $65,625 $104,900

Cite this page

zipcodes.pro. “ZIP codes starting with 677.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/prefix/677

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