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/546

ZIP codes starting with 546

ZIP codes
59
States
WI
Largest city
La Crosse, WI
Population
256,843

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 546xx

ZIP codes starting with 546
ZIP City Type Population Median income Median home
54601 La Crosse , WI Standard 50,397 $61,639 $235,100
54602 La Crosse , WI No street area — — —
54603 La Crosse , WI Standard 13,738 $52,012 $181,900
54610 Alma , WI Standard 1,564 $61,563 $207,000
54611 Alma Center , WI Standard 1,372 $71,667 $164,600
54612 Arcadia , WI Standard 5,915 $77,647 $196,400
54613 Arkdale , WI Standard 2,174 $51,528 $172,400
54614 Bangor , WI Standard 2,776 $85,588 $250,300
54615 Black River Falls , WI Standard 11,315 $67,033 $198,000
54616 Blair , WI Standard 2,443 $72,222 $180,900
54618 Camp Douglas , WI Standard 2,333 $73,214 $168,800
54619 Cashton , WI Standard 3,849 $71,463 $230,200
54620 Cataract , WI No street area — — —
54621 Chaseburg , WI Standard 1,319 $94,286 $280,000
54622 Cochrane , WI Standard 2,147 $78,194 $188,200
54623 Coon Valley , WI Standard 1,928 $88,864 $276,400
54624 De Soto , WI Standard 1,554 $81,518 $186,000
54625 Dodge , WI Standard 317 $53,157 $181,600
54626 Eastman , WI Standard 1,423 $69,926 $253,000
54627 Ettrick , WI Standard 2,020 $77,212 $223,800
54628 Ferryville , WI Standard 912 $57,167 $202,300
54629 Fountain City , WI Standard 2,595 $74,432 $229,900
54630 Galesville , WI Standard 4,261 $95,549 $272,300
54631 Gays Mills , WI Standard 1,737 $65,417 $170,900
54632 Genoa , WI Standard 1,288 $82,500 $236,100
54634 Hillsboro , WI Standard 4,484 $60,945 $198,800
54635 Hixton , WI Standard 1,793 $72,566 $209,100
54636 Holmen , WI Standard 16,727 $96,384 $321,500
54637 Hustler , WI Standard 131 $50,250 $133,300
54638 Kendall , WI Standard 1,513 $60,417 $283,300
54639 La Farge , WI Standard 2,435 $61,375 $209,700
54640 Lynxville , WI No street area — — —
54641 Mather , WI No street area — — —
54642 Melrose , WI Standard 2,259 $73,452 $210,600
54643 Millston , WI Standard 2 — —
54644 Mindoro , WI Standard 1,236 $77,143 $256,500
54645 Mount Sterling , WI Standard 97 $50,833 $137,500
54646 Necedah , WI Standard 3,770 $59,750 $166,700
54648 Norwalk , WI Standard 1,608 $74,250 $167,800
54649 Oakdale , WI No street area — — —
54650 Onalaska , WI Standard 25,304 $85,548 $291,600
54651 Ontario , WI Standard 1,384 $62,159 $172,800
54652 Readstown , WI Standard 947 $57,500 $180,600
54653 Rockland , WI Standard 1,335 $72,596 $264,200
54654 Seneca , WI Standard 168 $68,304 $98,600
54655 Soldiers Grove , WI Standard 1,798 $56,010 $220,900
54656 Sparta , WI Standard 18,160 $72,379 $214,400
54657 Steuben , WI Standard 357 $70,750 $180,600
54658 Stoddard , WI Standard 2,326 $73,438 $249,800
54659 Taylor , WI Standard 1,257 $71,477 $191,200
54660 Tomah , WI Standard 16,124 $61,186 $197,200
54661 Trempealeau , WI Standard 3,806 $79,720 $268,400
54662 Tunnel City , WI No street area — — —
54664 Viola , WI Standard 1,571 $72,898 $171,100
54665 Viroqua , WI Standard 8,863 $72,093 $228,200
54666 Warrens , WI Standard 2,635 $78,015 $220,500
54667 Westby , WI Standard 5,100 $75,774 $224,200
54669 West Salem , WI Standard 8,228 $103,194 $312,300
54670 Wilton , WI Standard 2,048 $82,250 $228,900

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zipcodes.pro. “ZIP codes starting with 546.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/prefix/546

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