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/545

ZIP codes starting with 545

ZIP codes
47
States
WI
Largest city
Rhinelander, WI
Population
93,575

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 545xx

ZIP codes starting with 545
ZIP City Type Population Median income Median home
54501 Rhinelander , WI Standard 21,405 $68,163 $203,900
54511 Argonne , WI Standard 1,393 $66,719 $172,700
54512 Boulder Junction , WI Standard 1,461 $75,147 $294,500
54513 Brantwood , WI Standard 431 $63,675 $182,000
54514 Butternut , WI Standard 1,827 $70,769 $165,000
54515 Catawba , WI Standard 639 $60,250 $111,400
54517 Clam Lake , WI Standard 167 $73,571 $422,500
54519 Conover , WI Standard 1,309 $59,628 $271,600
54520 Crandon , WI Standard 3,764 $60,031 $169,800
54521 Eagle River , WI Standard 8,551 $74,071 $305,100
54524 Fifield , WI Standard 663 $40,536 $167,000
54525 Gile , WI Standard 318 $74,375 $81,000
54526 Glen Flora , WI Standard 644 $52,500 $129,500
54527 Glidden , WI Standard 932 $55,476 $121,100
54529 Harshaw , WI Standard 1,220 $72,000 $268,100
54530 Hawkins , WI Standard 758 $54,375 $114,400
54531 Hazelhurst , WI Standard 1,385 $84,286 $344,900
54532 Heafford Junction , WI No street area — — —
54534 Hurley , WI Standard 2,393 $53,468 $123,600
54536 Iron Belt , WI Standard 154 $57,917 $66,800
54537 Kennan , WI Standard 601 $59,464 $121,700
54538 Lac Du Flambeau , WI Standard 3,025 $51,429 $320,300
54539 Lake Tomahawk , WI Standard 1,356 $62,841 $282,200
54540 Land O Lakes , WI Standard 971 $68,654 $276,400
54541 Laona , WI Standard 1,561 $63,438 $193,800
54542 Long Lake , WI Standard 702 $46,607 $122,000
54543 Mc Naughton , WI No street area — — —
54545 Manitowish Waters , WI Standard 947 $80,625 $665,700
54546 Mellen , WI Standard 1,332 $70,104 $141,900
54547 Mercer , WI Standard 1,549 $63,500 $306,600
54548 Minocqua , WI Standard 5,676 $69,569 $336,400
54550 Montreal , WI Standard 768 $64,583 $112,200
54552 Park Falls , WI Standard 4,292 $61,317 $150,700
54554 Phelps , WI Standard 1,148 $63,750 $247,300
54555 Phillips , WI Standard 4,728 $59,025 $186,900
54556 Prentice , WI Standard 1,161 $54,375 $144,800
54557 Presque Isle , WI Standard 1,042 $74,432 $394,600
54558 Saint Germain , WI Standard 2,262 $59,718 $261,000
54559 Saxon , WI Standard 837 $69,696 $159,300
54560 Sayner , WI Standard 561 $61,667 $246,300
54561 Star Lake , WI Standard 55 — $331,800
54562 Three Lakes , WI Standard 2,038 $57,422 $326,300
54563 Tony , WI Standard 811 $81,875 $206,000
54564 Tripoli , WI Standard 393 $56,875 $184,000
54565 Upson , WI Standard 38 $38,125 $170,800
54566 Wabeno , WI Standard 1,453 $56,250 $209,400
54568 Woodruff , WI Standard 4,854 $72,589 $281,000

Cite this page

zipcodes.pro. “ZIP codes starting with 545.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/prefix/545

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