Fredonia Wisconsin ZIP Codes
Fredonia holds a single ZIP code.
Every ZIP code in Fredonia
| ZIP code | County |
|---|---|
| 53021 | Ozaukee County |
We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Fredonia codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Fredonia. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.
How these codes cluster
Every Fredonia ZIP code begins 530. Those first three digits identify the sectional center facility that processes mail for this part of Wisconsin. Statewide that range covers 83 ZIP codes, so Fredonia accounts for 1% of it.
Every Wisconsin ZIP prefix and the region it covers →
Area codes covering Fredonia
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The code below serves the same ground Fredonia occupies.
Fredonia Wisconsin area codes in full →
Where Fredonia's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Fredonia
| City | Distance | ZIP codes |
|---|---|---|
| Belgium Wisconsin ZIP codes | 5.4 mi | 1 ZIP code |
| Saukville Wisconsin ZIP codes | 5.7 mi | 1 ZIP code |
| Newburg Wisconsin ZIP codes | 5.7 mi | 1 ZIP code |
| Random Lake Wisconsin ZIP codes | 5.8 mi | 1 ZIP code |
| Port Washington Wisconsin ZIP codes | 6.8 mi | 1 ZIP code |
| Cedar Grove Wisconsin ZIP codes | 9.1 mi | 1 ZIP code |
| Adell Wisconsin ZIP codes | 10 mi | 1 ZIP code |
| Grafton Wisconsin ZIP codes | 10 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.