Byron Minnesota ZIP Codes
Byron holds a single ZIP code.
Every ZIP code in Byron
| ZIP code | County |
|---|---|
| 55920 | Olmsted 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Byron codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Byron. 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 Byron ZIP code begins 559. Those first three digits identify the sectional center facility that processes mail for this part of Minnesota. Statewide that range covers 73 ZIP codes, so Byron accounts for 1% of it.
Every Minnesota ZIP prefix and the region it covers →
Area codes covering Byron
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The codes below serve the same ground Byron occupies.
Byron Minnesota area codes in full →
Where Byron's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Byron
| City | Distance | ZIP codes |
|---|---|---|
| Kasson Minnesota ZIP codes | 5.4 mi | 1 ZIP code |
| Mantorville Minnesota ZIP codes | 5.6 mi | 1 ZIP code |
| Rochester Minnesota ZIP codes | 8.2 mi | 6 ZIP codes |
| Oronoco Minnesota ZIP codes | 9.7 mi | 1 ZIP code |
| Dodge Center Minnesota ZIP codes | 11 mi | 1 ZIP code |
| Pine Island Minnesota ZIP codes | 11 mi | 1 ZIP code |
| Stewartville Minnesota ZIP codes | 14 mi | 1 ZIP code |
| Hayfield Minnesota ZIP codes | 15 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.