First three digits · Wisconsin
ZIP Codes Starting with
87 ZIP codes start with 535, sorted at the Madison, WI (SCF 535) sectional center (USPS labeling list L005, effective October 1, 2026) in Wisconsin: 81 residential ZIP codes across 12 counties and 6 PO Box or single-organization codes (Census 2020 ZCTAs and GeoNames postal codes, October 2026).
What do the digits 535 mean?
The first digit, 5, is one of ten national areas (Iowa, Minnesota, Montana, North Dakota, South Dakota and Wisconsin). The first three, 535, route mail to a sectional center: USPS labeling list L005 (effective October 1, 2026) sends letters for 535 to the Madison, WI (SCF 535) facility. The last two digits pick the delivery area. By residents, the largest town names among the 535 ZIP codes are Janesville, Beloit, Sun Prairie, Verona, Middleton and Waunakee.
The same facility sorts 4 prefixes, 195 ZIP codes in all: 535, 537, 538, 539.
Where are the 535 ZIP codes?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
All ZIP codes starting with 535
| County | ||||||
|---|---|---|---|---|---|---|
| 53501 | Afton | Rock County | 165 | 361 | – | – |
| 53502 | Albany | Green County | 2,393 | 46 | $87k | $252k |
| 53503 | Arena | Iowa County | 2,057 | 36 | $87k | $240k |
| 53504 | Argyle | Lafayette County | 2,281 | 25 | $84k | $221k |
| 53505 | Avalon | Rock County | 358 | 16 | $92k | $300k |
| 53506 | Avoca | Iowa County | 1,011 | 17 | $60k | $172k |
| 53507 | Barneveld | Iowa County | 2,467 | 40 | $113k | $347k |
| 53508 | Belleville | Dane County | 5,654 | 83 | $100k | $351k |
| 53510 | Belmont | Lafayette County | 1,435 | 34 | $82k | $230k |
| 53511 | Beloit | Rock County | 48,701 | 424 | $67k | $174k |
| 53512 | Beloit | Rock County | PO Box or unique | – | – | – |
| 53515 | Black Earth | Dane County | 2,647 | 68 | $93k | $361k |
| 53516 | Blanchardville | Lafayette County | 2,238 | 26 | $85k | $307k |
| 53517 | Blue Mounds | Dane County | 1,799 | 39 | $85k | $445k |
| 53518 | Blue River | Richland County | 1,489 | 18 | $62k | $165k |
| 53520 | Brodhead | Rock County | 6,687 | 56 | $75k | $223k |
| 53521 | Brooklyn | Green County | 3,640 | 61 | $108k | $391k |
| 53522 | Browntown | Green County | 943 | 24 | $82k | $205k |
| 53523 | Cambridge | Dane County | 5,074 | 108 | $102k | $345k |
| 53525 | Clinton | Rock County | 4,066 | 71 | $79k | $248k |
| 53526 | Cobb | Iowa County | 471 | 60 | $79k | $200k |
| 53527 | Cottage Grove | Dane County | 11,924 | 333 | $134k | $445k |
| 53528 | Cross Plains | Dane County | 6,263 | 142 | $107k | $436k |
| 53529 | Dane | Dane County | 2,611 | 67 | $108k | $393k |
| 53530 | Darlington | Lafayette County | 4,569 | 35 | $70k | $182k |
| 53531 | Deerfield | Dane County | 4,430 | 108 | $105k | $353k |
| 53532 | Deforest | Dane County | 16,514 | 305 | $110k | $372k |
| 53533 | Dodgeville | Iowa County | 7,283 | 51 | $78k | $270k |
| 53534 | Edgerton | Rock County | 12,241 | 144 | $89k | $295k |
| 53535 | Edmund | Iowa County | PO Box or unique | – | – | – |
| 53536 | Evansville | Rock County | 9,547 | 107 | $88k | $305k |
| 53537 | Footville | Rock County | 752 | 862 | $60k | $155k |
| 53538 | Fort Atkinson | Jefferson County | 18,813 | 194 | $83k | $246k |
| 53540 | Gotham | Richland County | 112 | 1,474 | $62k | $128k |
| 53541 | Gratiot | Lafayette County | 904 | 14 | $58k | $245k |
| 53542 | Hanover | Rock County | PO Box or unique | – | – | – |
| 53543 | Highland | Iowa County | 1,758 | 23 | $77k | $237k |
| 53544 | Hollandale | Iowa County | 826 | 20 | $101k | $308k |
| 53545 | Janesville | Rock County | 24,703 | 1,098 | $74k | $221k |
| 53546 | Janesville | Rock County | 29,867 | 368 | $76k | $239k |
| 53547 | Janesville | Rock County | PO Box or unique | – | – | – |
| 53548 | Janesville | Rock County | 19,916 | 266 | $77k | $235k |
| 53549 | Jefferson | Jefferson County | 9,873 | 139 | $80k | $262k |
| 53550 | Juda | Green County | 1,220 | 25 | $73k | $229k |
| 53551 | Lake Mills | Jefferson County | 9,731 | 246 | $94k | $357k |
| 53553 | Linden | Iowa County | 621 | 91 | $64k | $170k |
| 53554 | Livingston | Grant County | 1,029 | 23 | $74k | $175k |
| 53555 | Lodi | Columbia County | 8,933 | 118 | $119k | $392k |
| 53556 | Lone Rock | Richland County | 2,428 | 50 | $68k | $185k |
| 53557 | Lowell | Dodge County | 446 | 97 | $92k | $174k |
| 53558 | McFarland | Dane County | 13,164 | 759 | $108k | $405k |
| 53559 | Marshall | Dane County | 6,110 | 92 | $94k | $315k |
| 53560 | Mazomanie | Dane County | 3,416 | 57 | $98k | $358k |
| 53561 | Merrimac | Sauk County | 1,872 | 51 | $91k | $428k |
| 53562 | Middleton | Dane County | 29,790 | 958 | $101k | $532k |
| 53563 | Milton | Rock County | 11,280 | 168 | $90k | $294k |
| 53565 | Mineral Point | Iowa County | 4,778 | 26 | $85k | $270k |
| 53566 | Monroe | Green County | 14,901 | 97 | $74k | $220k |
| 53569 | Montfort | Grant County | 978 | 22 | $90k | $207k |
| 53570 | Monticello | Green County | 2,686 | 38 | $88k | $245k |
| 53571 | Morrisonville | Dane County | 367 | 855 | $66k | $198k |
| 53572 | Mount Horeb | Dane County | 10,385 | 105 | $109k | $417k |
| 53573 | Muscoda | Grant County | 2,906 | 27 | $65k | $182k |
| 53574 | New Glarus | Green County | 4,033 | 93 | $107k | $336k |
| 53575 | Oregon | Dane County | 18,204 | 329 | $108k | $433k |
| 53576 | Orfordville | Rock County | 2,131 | 68 | $64k | $225k |
| 53577 | Plain | Sauk County | 1,363 | 30 | $97k | $271k |
| 53578 | Prairie Du Sac | Sauk County | 6,503 | 151 | $106k | $347k |
| 53579 | Reeseville | Dodge County | 1,732 | 43 | $80k | $239k |
| 53580 | Rewey | Iowa County | 442 | 24 | $62k | $146k |
| 53581 | Richland Center | Richland County | 10,176 | 44 | $65k | $196k |
| 53582 | Ridgeway | Iowa County | 1,070 | 31 | $89k | $266k |
| 53583 | Sauk City | Sauk County | 5,816 | 78 | $97k | $344k |
| 53584 | Sextonville | Richland County | 7 | 200 | – | – |
| 53585 | Sharon | Walworth County | 2,264 | 83 | $75k | $200k |
| 53586 | Shullsburg | Lafayette County | 2,211 | 22 | $71k | $166k |
| 53587 | South Wayne | Lafayette County | 1,177 | 20 | $90k | $204k |
| 53588 | Spring Green | Sauk County | 3,770 | 27 | $83k | $292k |
| 53589 | Stoughton | Dane County | 19,550 | 230 | $96k | $341k |
| 53590 | Sun Prairie | Dane County | 45,602 | 692 | $97k | $380k |
| 53593 | Verona | Dane County | 31,081 | 408 | $135k | $484k |
| 53594 | Waterloo | Jefferson County | 5,199 | 71 | $88k | $244k |
| 53595 | Dodgeville | Iowa County | PO Box or unique | – | – | – |
| 53596 | Sun Prairie | Dane County | PO Box or unique | – | – | – |
| 53597 | Waunakee | Dane County | 21,426 | 405 | $117k | $493k |
| 53598 | Windsor | Dane County | 4,176 | 1,362 | $107k | $400k |
| 53599 | Woodford | Lafayette County | 75 | 311 | – | $99k |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; GeoNames postal codes (CC BY 4.0) for codes without a residential area.