ZIP codes starting with 543
- ZIP codes
- 12
- States
- WI
- Largest city
- Green Bay, WI
- Population
- 189,141
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 543xx
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
54301 | Green Bay , WI | Standard | 21,724 | $78,684 | $225,600 |
54302 | Green Bay , WI | Standard | 30,333 | $58,506 | $175,300 |
54303 | Green Bay , WI | Standard | 28,153 | $60,781 | $178,600 |
54304 | Green Bay , WI | Standard | 28,502 | $63,865 | $220,600 |
54305 | Green Bay , WI | No street area | — | — | — |
54306 | Green Bay , WI | No street area | — | — | — |
54307 | Green Bay , WI | Standard | 1,128 | — | — |
54308 | Green Bay , WI | No street area | — | — | — |
54311 | Green Bay , WI | Standard | 37,879 | $84,914 | $300,600 |
54313 | Green Bay , WI | Standard | 41,422 | $107,599 | $323,300 |
54324 | Green Bay , WI | No street area | — | — | — |
54344 | Green Bay , WI | No street area | — | — | — |
Cite this page
zipcodes.pro. “ZIP codes starting with 543.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/prefix/543
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