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/539

ZIP codes starting with 539

ZIP codes
51
States
WI
Largest city
Beaver Dam, WI
Population
204,222

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 539xx

ZIP codes starting with 539
ZIP City Type Population Median income Median home
53901 Portage , WI Standard 14,291 $74,092 $227,700
53910 Adams , WI Standard 3,522 $49,875 $139,900
53911 Arlington , WI Standard 1,450 $100,625 $296,100
53913 Baraboo , WI Standard 21,704 $74,629 $234,900
53916 Beaver Dam , WI Standard 22,808 $71,188 $220,300
53919 Brandon , WI Standard 2,292 $97,019 $223,400
53920 Briggsville , WI Standard 599 $69,432 $243,500
53922 Burnett , WI Standard 1,057 $91,500 $287,800
53923 Cambria , WI Standard 2,295 $72,500 $220,700
53924 Cazenovia , WI Standard 1,346 $72,333 $222,400
53925 Columbus , WI Standard 8,754 $84,044 $268,000
53926 Dalton , WI Standard 1,951 $62,917 $226,700
53927 Dellwood , WI No street area — — —
53928 Doylestown , WI Standard 63 $85,625 $137,500
53929 Elroy , WI Standard 2,808 $65,568 $187,000
53930 Endeavor , WI Standard 1,192 $72,778 $224,200
53931 Fairwater , WI Standard 350 $71,250 $145,800
53932 Fall River , WI Standard 2,495 $85,781 $309,400
53933 Fox Lake , WI Standard 4,227 $83,578 $261,000
53934 Friendship , WI Standard 4,520 $48,782 $166,100
53935 Friesland , WI Standard 297 $86,250 $151,300
53936 Grand Marsh , WI Standard 1,231 $55,515 $137,500
53937 Hillpoint , WI Standard 1,157 $87,292 $318,200
53939 Kingston , WI Standard 251 $70,833 $147,900
53940 Lake Delton , WI Standard 0 — —
53941 La Valle , WI Standard 2,817 $82,537 $261,100
53942 Lime Ridge , WI Standard 235 $112,292 $133,300
53943 Loganville , WI Standard 1,245 $73,000 $225,600
53944 Lyndon Station , WI Standard 2,207 $72,614 $201,700
53946 Markesan , WI Standard 4,333 $72,450 $245,500
53947 Marquette , WI Standard 223 $56,250 $240,000
53948 Mauston , WI Standard 8,195 $62,829 $182,400
53949 Montello , WI Standard 6,292 $64,611 $206,400
53950 New Lisbon , WI Standard 5,942 $72,768 $196,700
53951 North Freedom , WI Standard 2,452 $71,970 $190,400
53952 Oxford , WI Standard 3,524 $63,750 $194,700
53953 Packwaukee , WI Standard 213 $46,250 $114,800
53954 Pardeeville , WI Standard 6,678 $83,207 $278,600
53955 Poynette , WI Standard 6,125 $101,134 $332,000
53956 Randolph , WI Standard 3,477 $84,231 $232,800
53957 Randolph , WI No street area — — —
53958 Reedsburg , WI No street area — — —
53959 Reedsburg , WI Standard 14,451 $77,924 $255,300
53960 Rio , WI Standard 3,396 $84,911 $282,100
53961 Rock Springs , WI Standard 831 $77,298 $210,500
53962 Union Center , WI Standard 27 $28,333 $116,700
53963 Waupun , WI Standard 13,952 $77,631 $208,600
53964 Westfield , WI Standard 3,371 $69,306 $217,600
53965 Wisconsin Dells , WI Standard 10,818 $66,667 $227,000
53968 Wonewoc , WI Standard 2,429 $74,479 $207,600
53969 Wyocena , WI Standard 329 $77,222 $190,800

Cite this page

zipcodes.pro. “ZIP codes starting with 539.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/prefix/539

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